Tring to Berkhamsted via Tom's Hill Walk
A canal, Ashridge estate, Berkhamsted Common and World War One trenches
Hiking weather forecast
Hertfordshire hourly weather (Visual Crossing)
Sunset: 16:00. Dusk: 16:38. Dark: 17:20. Moon 41% (00:02 to dawn)
Updated: Sat, 23-Nov at 08:39
| 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | |
| Today |
100%
|
100%
|
0%
|
97%
|
97%
|
97%
|
97%
|
100%
|
100%
|
100%
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100%
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100%
|
100%
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100%
|
100%
|
100%
|
| Sun, 24 Nov |
65%
|
26%
|
26%
|
26%
|
26%
|
26%
|
26%
|
65%
|
65%
|
65%
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65%
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65%
|
65%
|
97%
|
97%
|
97%
|
| Mon, 25 Nov |
58%
|
13%
|
13%
|
13%
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13%
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13%
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13%
|
7%
|
7%
|
7%
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7%
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7%
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7%
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3%
|
3%
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3%
|
| Tue, 26 Nov |
3%
|
3%
|
3%
|
3%
|
3%
|
3%
|
3%
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23%
|
23%
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23%
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23%
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23%
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23%
|
65%
|
65%
|
65%
|
| Wed, 27 Nov |
61%
|
32%
|
32%
|
32%
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32%
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32%
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32%
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13%
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13%
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13%
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13%
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13%
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13%
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13%
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13%
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13%
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| Thu, 28 Nov |
13%
|
16%
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16%
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16%
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16%
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16%
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16%
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23%
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23%
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23%
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23%
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23%
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23%
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13%
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13%
|
13%
|
| Fri, 29 Nov |
19%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
26%
|
26%
|
26%
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26%
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26%
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26%
|
29%
|
29%
|
29%
|
| Sat, 30 Nov |
19%
|
19%
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19%
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19%
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19%
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19%
|
19%
|
16%
|
16%
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16%
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16%
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16%
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16%
|
23%
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23%
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23%
|
| Sun, 01 Dec |
19%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
32%
|
32%
|
32%
|
32%
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32%
|
32%
|
42%
|
42%
|
42%
|
| Mon, 02 Dec |
26%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
36%
|
36%
|
36%
| 🌫 36% | 🌫 36% | 🌫 36% | 🌫 32% | 🌫 32% | 🌫 32% |
| Tue, 03 Dec |
26%
|
13%
|
13%
|
13%
|
13%
|
13%
|
13%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
39%
|
39%
|
39%
|
| Wed, 04 Dec |
10%
|
19%
|
19%
|
19%
|
19%
|
19%
|
19%
|
26%
|
26%
|
26%
|
26%
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26%
|
26%
|
29%
|
29%
|
29%
|
| Thu, 05 Dec |
26%
|
26%
|
26%
|
26%
|
26%
|
26%
|
26%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
32%
|
32%
|
32%
|
| Fri, 06 Dec |
19%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
19%
|
19%
|
19%
|
19%
|
19%
|
19%
|
23%
|
23%
|
23%
|
| Sat, 07 Dec |
13%
|
16%
|
16%
|
16%
|
16%
|
16%
|
16%
|
16%
|
16%
|
16%
|
16%
|
16%
|
16%
|
32%
|
32%
|
32%
|
Percentages are the chance of rain.
Weather data by Visual Crossing
Hertfordshire hourly weather (Open Meteo)
Sunset: 16:00. Dusk: 16:38. Dark: 17:20. Moon 41% (00:02 to dawn)
Updated: Sat, 23-Nov at 08:36
| 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | |
| Today |
100%
|
85%
|
75%
|
60%
|
63%
|
70%
|
85%
|
95%
|
95%
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100%
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85%
|
75%
|
55%
|
48%
| ||
| Sun, 24 Nov |
33%
|
30%
|
25%
|
28%
|
33%
|
30%
|
40%
|
40%
|
45%
|
48%
|
48%
|
53%
|
58%
|
68%
|
75%
|
90%
|
| Mon, 25 Nov |
43%
|
31%
|
19%
|
10%
|
6%
|
5%
|
5%
|
6%
|
8%
|
10%
|
12%
|
13%
|
13%
|
9%
|
4%
|
0%
|
| Tue, 26 Nov |
0%
|
0%
|
1%
|
2%
|
3%
|
4%
|
5%
|
6%
|
7%
|
9%
|
10%
|
11%
|
13%
|
15%
|
16%
|
18%
|
| Wed, 27 Nov | 🌫 48% | 🌫 49% | 🌫 49% | 🌫 49% |
48%
|
47%
|
45%
|
43%
|
40%
|
37%
|
34%
|
31%
|
28%
|
25%
|
23%
|
20%
|
| Thu, 28 Nov | 🌫 10% | 🌫 10% | 🌫 11% | 🌫 12% |
12%
|
13%
|
13%
|
13%
|
13%
|
13%
|
13%
|
13%
|
13%
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13%
|
14%
|
14%
|
| Fri, 29 Nov |
22%
|
23%
|
24%
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25%
|
26%
|
27%
|
28%
|
29%
|
29%
|
29%
|
30%
|
30%
|
30%
|
30%
|
30%
|
29%
|
| Sat, 30 Nov |
21%
|
19%
|
17%
|
16%
|
15%
|
14%
|
13%
|
16%
|
18%
|
19%
|
18%
|
17%
|
16%
|
16%
|
16%
|
16%
|
| Sun, 01 Dec |
23%
|
23%
|
23%
|
23%
|
25%
|
28%
|
29%
|
27%
|
24%
|
23%
|
27%
|
32%
|
35%
|
32%
|
27%
|
23%
|
| Mon, 02 Dec |
13%
|
13%
|
16%
|
19%
|
21%
|
23%
|
26%
|
29%
|
33%
|
35%
|
36%
|
35%
|
35%
|
35%
|
35%
|
35%
|
| Tue, 03 Dec |
26%
|
24%
|
22%
|
20%
|
18%
|
17%
|
16%
|
16%
|
18%
|
19%
|
21%
|
22%
|
23%
|
23%
|
21%
|
20%
|
| Wed, 04 Dec |
10%
|
11%
|
12%
|
14%
|
16%
|
17%
|
19%
|
21%
|
23%
|
24%
|
25%
|
26%
|
26%
|
25%
|
24%
|
23%
|
| Thu, 05 Dec |
26%
|
27%
|
27%
|
27%
|
27%
|
27%
|
26%
|
25%
|
23%
|
22%
|
21%
|
19%
|
19%
|
20%
|
21%
|
23%
|
| Fri, 06 Dec |
19%
|
19%
|
19%
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19%
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19%
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19%
|
19%
|
19%
|
19%
|
19%
|
19%
|
19%
|
19%
|
19%
|
19%
|
19%
|
| Sat, 07 Dec | 🌫 13% | 🌫 13% | 🌫 13% | 🌫 14% |
15%
|
16%
|
16%
|
16%
|
16%
| 🌫 15% | 🌫 14% | 🌫 13% | 🌫 13% | 🌫 13% | 🌫 14% | 🌫 15% |
| Sun, 08 Dec |
10%
|
10%
|
10%
|
11%
|
12%
|
12%
|
13%
|
14%
|
15%
|
16%
|
17%
|
19%
|
19%
|
18%
|
15%
|
13%
|
Percentages are the chance of rain.
Weather data by Open-Meteo
Hertfordshire hourly weather (Met Office)
Sunset: 16:00. Dusk: 16:38. Dark: 17:20. Moon 41% (00:02 to dawn)
Updated: Sat, 23-Nov at 08:00
| 06 | 09 | 12 | 15 | 18 | 21 | |
| Today |
92%
|
90%
|
97%
|
96%
|
92%
| |
| Sun, 24 Nov |
51%
|
83%
|
55%
|
87%
|
84%
|
88%
|
| Mon, 25 Nov |
13%
|
3%
|
3%
|
4%
|
1%
|
2%
|
| Tue, 26 Nov |
2%
|
3%
|
4%
|
4%
|
5%
|
10%
|
| Wed, 27 Nov |
45%
|
35%
|
40%
|
39%
|
16%
|
12%
|
| Thu, 28 Nov |
7%
|
5%
|
6%
|
7%
|
8%
|
11%
|
| Fri, 29 Nov |
13%
|
11%
|
11%
|
10%
|
10%
|
11%
|
| Sat, 30 Nov |
15%
|
Percentages are the chance of rain.
Weather data by Met Office
Regional weather (Met Office)
Sunset: 16:00. Dusk: 16:38. Dark: 17:20. Moon 41% (00:02 to dawn)
Updated: Sat, 23-Nov at 08:38
East England
Storm Bert brings with strong winds and sometimes heavy rain.
- Rain for much of today, heavy at times, although some temporary drier spells are possible around the middle of the day
- Becoming windy, with a risk of coastal gales this afternoon, whilst also turning noticeably milder
- Maximum Temperature 13C
Tonight:
- Outbreaks of mainly light rain this evening
- Overnight many places become dry, while all areas remaining mild and windy
- Risk of gales for the Essex and Suffolk coasts
- Minimum Temperature 11C
Sunday:
- Outbreaks of rain are possible across western areas through the morning, before a band of sometimes heavy rain gradually moves southeastwards
- Very mild and windy with gales for eastern coasts
- Maximum Temperature 15C
Outlook for Monday to Wednesday:
- Sunny spells and mainly dry with lighter winds, and only isolated showers, Monday and Tuesday
- Wednesday wet and windy weather is likely to arrive
- Temperatures generally close to average
UK Day 6-7 and week 2
- Probably a quieter interlude to start this period for much of the UK as high pressure builds across the north with a return of night frosts
- However there is still a risk of some rain across southern parts of the country on Wednesday, although the northern extent of this is uncertain
- The high is likely to migrate eastwards during the second half of next week, potentially allowing some outbreaks of rain to move into some some northwestern areas along with some stronger winds
- Into December, and while signals are mixed it looks most likely that high pressure may re-assert itself close to or over the UK, with temperatures generally near average, but some overnight frost is likely, and rather cold by day where any fog persists
UK Week 3 and 4
- The start of this period looks like being largely settled, with high pressure close to if not over the UK
- However as we move further into December there are signs that it will become less settled with west or northwesterly types preferred, These will bring some wetter and windier interludes with a risk of some snow, especially for hills in the north
- These conditions look more likely to dominate towards the middle of December
- Temperatures generally close to average through the period
Weather data by Met Office
Hertfordshire Air Quality (Pollen and UV)
Updated: Sat, 23-Nov at 08:36
Key : Low Medium High Very High
| 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |
| Today | air q | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q | air q | air q | air q | air q | air q | air q | air q | air q | ||||||||
| Sun, 24 Nov | air q | air q | air q | air q | air q | air q | air q | air q | air q | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q | air q | air q | air q | air q | air q | air q | air q | air q |
| Mon, 25 Nov | air q | air q | air q | air q | air q | air q | air q | air q | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q | air q | air q | air q | air q | air q | air q | air q |
| Tue, 26 Nov | air q | air q | air q | air q | air q | air q | air q | air q | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q UV | air q | air q | air q | air q | air q | air q | air q | air q |
Pollens
These pollens are shown (in season):
- Grass
- Alder and birch (trees)
- Mugwort and Ragweed (weeds)
When out walking, wraparound glasses, a disposable or washable facemask, and being at the front of the group, all help.
Other forecasts: Met Office, University of Worcester
UV and Air Quality
The UV forecast takes account of cloud cover.
"Air Q", the European Air Quality index, is a mix of dust/particulates, ozone, sulphur and nitrous oxides
Data
Weather data by Open-Meteo and CAMS ENSEMBLE
Hertfordshire Visibility
Updated: Sat, 23-Nov at 08:36
| 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | |
| Today | 7km | 21km | 27km | 21km | 22km | 20km | 10km | 10km | 10km | 10km | 10km | 10km | 10km | 10km | ||
| Sun, 24 Nov | 24km | 25km | 28km | 30km | 34km | 39km | 44km | 47km | 49km | 49km | 50km | 47km | 42km | 41km | 26km | 11km |
| Mon, 25 Nov | 13km | 8km | 12km | 32km | 41km | 46km | 53km | 52km | 53km | 49km | 51km | 48km | 43km | 37km | 31km | 23km |
| Tue, 26 Nov | 7km | 6km | 5km | 5km | 13km | 22km | 31km | 36km | 42km | 47km | 37km | 27km | 17km | 15km | 13km | 11km |
| Wed, 27 Nov | 1km | 1km | 0km | 0km | 0km | 1km | 1km | 6km | 12km | 17km | 15km | 12km | 9km | 7km | 6km | 5km |
Visibility in km. Above 50km is 'good'. Humidity and air pollution make it worse. Theoretical maximum is 300km/200 miles in clean dry polar air.
On the South Downs, at ~ 170m/500ft, the horizon is is ~ 45km/30 miles away. On a mountain at 1,000m/3,000ft, it is ~ 160km/100 miles away. Formula: horizon in km = √ (13 x altitude in m)
Weather data by Open-Meteo
Hertfordshire daylight
| Date | Light | Dawn | Sunrise | Max Ht. | Sunset | Dusk | Dark | Day Length | |
|---|---|---|---|---|---|---|---|---|---|
| Sat, 23-Nov | 06:13 | 06:55 | 07:34 | 11:47 | 16:00 | 16:38 | 17:20 | 09:42 | |
| Sun, 24-Nov | 06:15 | 06:57 | 07:35 | 11:47 | 15:59 | 16:37 | 17:19 | 09:40 | |
| Mon, 25-Nov | 06:16 | 06:58 | 07:37 | 11:48 | 15:58 | 16:37 | 17:19 | 09:38 | |
| Tue, 26-Nov | 06:17 | 07:00 | 07:38 | 11:48 | 15:57 | 16:36 | 17:18 | 09:36 | |
| Wed, 27-Nov | 06:19 | 07:01 | 07:40 | 11:48 | 15:56 | 16:35 | 17:17 | 09:34 | |
| Thu, 28-Nov | 06:20 | 07:02 | 07:41 | 11:49 | 15:55 | 16:34 | 17:17 | 09:32 | |
| Fri, 29-Nov | 06:21 | 07:04 | 07:43 | 11:49 | 15:55 | 16:34 | 17:16 | 09:30 | |
| Sat, 30-Nov | 06:22 | 07:05 | 07:44 | 11:49 | 15:54 | 16:33 | 17:16 | 09:28 | |
| Sun, 01-Dec | 06:24 | 07:06 | 07:46 | 11:50 | 15:53 | 16:33 | 17:15 | 09:26 | |
| Mon, 02-Dec | 06:25 | 07:08 | 07:47 | 11:50 | 15:53 | 16:32 | 17:15 | 09:24 | |
| Tue, 03-Dec | 06:26 | 07:09 | 07:49 | 11:50 | 15:52 | 16:32 | 17:15 | 09:22 | |
| Wed, 04-Dec | 06:27 | 07:10 | 07:50 | 11:51 | 15:52 | 16:31 | 17:14 | 09:21 | |
| Thu, 05-Dec | 06:28 | 07:11 | 07:51 | 11:51 | 15:51 | 16:31 | 17:14 | 09:19 | |
| Fri, 06-Dec | 06:29 | 07:12 | 07:52 | 11:52 | 15:51 | 16:31 | 17:14 | 09:18 | |
| Sat, 07-Dec | 06:30 | 07:13 | 07:54 | 11:52 | 15:50 | 16:31 | 17:14 | 09:17 | |
| Sun, 08-Dec | 06:31 | 07:15 | 07:55 | 11:53 | 15:50 | 16:30 | 17:14 | 09:15 | |
| Mon, 09-Dec | 06:32 | 07:16 | 07:56 | 11:53 | 15:50 | 16:30 | 17:13 | 09:14 | |
| Tue, 10-Dec | 06:33 | 07:17 | 07:57 | 11:53 | 15:50 | 16:30 | 17:13 | 09:13 | |
| Wed, 11-Dec | 06:34 | 07:18 | 07:58 | 11:54 | 15:50 | 16:30 | 17:13 | 09:12 | |
| Thu, 12-Dec | 06:35 | 07:18 | 07:59 | 11:54 | 15:50 | 16:30 | 17:14 | 09:11 | |
| Fri, 13-Dec | 06:36 | 07:19 | 08:00 | 11:55 | 15:50 | 16:30 | 17:14 | 09:10 | |
| Sat, 14-Dec | 06:37 | 07:20 | 08:01 | 11:55 | 15:50 | 16:30 | 17:14 | 09:10 | |
| Sun, 15-Dec | 06:37 | 07:21 | 08:02 | 11:56 | 15:50 | 16:31 | 17:14 | 09:09 | |
| Mon, 16-Dec | 06:38 | 07:22 | 08:02 | 11:56 | 15:50 | 16:31 | 17:14 | 09:09 | |
| Tue, 17-Dec | 06:39 | 07:22 | 08:03 | 11:57 | 15:50 | 16:31 | 17:15 | 09:08 | |
| Wed, 18-Dec | 06:40 | 07:23 | 08:04 | 11:57 | 15:51 | 16:31 | 17:15 | 09:08 | |
| Thu, 19-Dec | 06:40 | 07:24 | 08:04 | 11:58 | 15:51 | 16:32 | 17:15 | 09:08 | |
| Fri, 20-Dec | 06:41 | 07:24 | 08:05 | 11:58 | 15:52 | 16:32 | 17:16 | 09:08 | |
| Sat, 21-Dec | 06:41 | 07:25 | 08:06 | 11:59 | 15:52 | 16:33 | 17:16 | 09:07 | |
| Sun, 22-Dec | 06:42 | 07:25 | 08:06 | 11:59 | 15:53 | 16:33 | 17:17 | 09:08 | |
| Mon, 23-Dec | 06:42 | 07:26 | 08:06 | 12:00 | 15:53 | 16:34 | 17:17 | 09:08 | |
| Tue, 24-Dec | 06:43 | 07:26 | 08:07 | 12:00 | 15:54 | 16:35 | 17:18 | 09:08 | |
| Wed, 25-Dec | 06:43 | 07:26 | 08:07 | 12:01 | 15:55 | 16:35 | 17:19 | 09:08 | |
| Thu, 26-Dec | 06:43 | 07:27 | 08:07 | 12:01 | 15:55 | 16:36 | 17:19 | 09:09 | |
| Fri, 27-Dec | 06:43 | 07:27 | 08:08 | 12:02 | 15:56 | 16:37 | 17:20 | 09:09 | |
| Sat, 28-Dec | 06:44 | 07:27 | 08:08 | 12:02 | 15:57 | 16:38 | 17:21 | 09:10 | |
| Sun, 29-Dec | 06:44 | 07:27 | 08:08 | 12:03 | 15:58 | 16:38 | 17:22 | 09:11 | |
| Mon, 30-Dec | 06:44 | 07:27 | 08:08 | 12:03 | 15:59 | 16:39 | 17:23 | 09:11 | |
| Tue, 31-Dec | 06:44 | 07:27 | 08:08 | 12:04 | 16:00 | 16:40 | 17:24 | 09:12 | |
| Wed, 01-Jan | 06:44 | 07:27 | 08:08 | 12:04 | 16:01 | 16:41 | 17:24 | 09:13 | |
| Thu, 02-Jan | 06:44 | 07:27 | 08:07 | 12:05 | 16:02 | 16:42 | 17:25 | 09:14 | |
| Fri, 03-Jan | 06:44 | 07:27 | 08:07 | 12:05 | 16:03 | 16:43 | 17:26 | 09:16 | |
| Sat, 04-Jan | 06:44 | 07:27 | 08:07 | 12:06 | 16:04 | 16:44 | 17:27 | 09:17 | |
| Sun, 05-Jan | 06:44 | 07:27 | 08:07 | 12:06 | 16:06 | 16:46 | 17:29 | 09:18 | |
| Mon, 06-Jan | 06:44 | 07:26 | 08:06 | 12:06 | 16:07 | 16:47 | 17:30 | 09:20 | |
| Tue, 07-Jan | 06:43 | 07:26 | 08:06 | 12:07 | 16:08 | 16:48 | 17:31 | 09:21 | |
| Wed, 08-Jan | 06:43 | 07:26 | 08:05 | 12:07 | 16:09 | 16:49 | 17:32 | 09:23 | |
| Thu, 09-Jan | 06:43 | 07:25 | 08:05 | 12:08 | 16:11 | 16:50 | 17:33 | 09:25 | |
| Fri, 10-Jan | 06:42 | 07:25 | 08:04 | 12:08 | 16:12 | 16:52 | 17:34 | 09:26 | |
| Sat, 11-Jan | 06:42 | 07:24 | 08:04 | 12:08 | 16:14 | 16:53 | 17:36 | 09:28 | |
| Sun, 12-Jan | 06:41 | 07:24 | 08:03 | 12:09 | 16:15 | 16:54 | 17:37 | 09:30 | |
| Mon, 13-Jan | 06:41 | 07:23 | 08:02 | 12:09 | 16:17 | 16:56 | 17:38 | 09:32 | |
| Tue, 14-Jan | 06:40 | 07:22 | 08:01 | 12:10 | 16:18 | 16:57 | 17:39 | 09:34 | |
| Wed, 15-Jan | 06:40 | 07:22 | 08:01 | 12:10 | 16:20 | 16:59 | 17:41 | 09:36 | |
| Thu, 16-Jan | 06:39 | 07:21 | 08:00 | 12:10 | 16:21 | 17:00 | 17:42 | 09:39 | |
| Fri, 17-Jan | 06:38 | 07:20 | 07:59 | 12:11 | 16:23 | 17:02 | 17:44 | 09:41 | |
| Sat, 18-Jan | 06:37 | 07:19 | 07:58 | 12:11 | 16:25 | 17:03 | 17:45 | 09:43 | |
| Sun, 19-Jan | 06:37 | 07:18 | 07:57 | 12:11 | 16:26 | 17:05 | 17:46 | 09:46 | |
| Mon, 20-Jan | 06:36 | 07:17 | 07:56 | 12:12 | 16:28 | 17:06 | 17:48 | 09:48 | |
| Tue, 21-Jan | 06:35 | 07:16 | 07:54 | 12:12 | 16:30 | 17:08 | 17:49 | 09:51 | |
| Wed, 22-Jan | 06:34 | 07:15 | 07:53 | 12:12 | 16:31 | 17:09 | 17:51 | 09:53 | |
| Thu, 23-Jan | 06:33 | 07:14 | 07:52 | 12:12 | 16:33 | 17:11 | 17:52 | 09:56 | |
| Fri, 24-Jan | 06:32 | 07:13 | 07:51 | 12:13 | 16:35 | 17:12 | 17:54 | 09:59 | |
| Sat, 25-Jan | 06:31 | 07:12 | 07:50 | 12:13 | 16:37 | 17:14 | 17:55 | 10:01 | |
| Sun, 26-Jan | 06:30 | 07:11 | 07:48 | 12:13 | 16:38 | 17:16 | 17:57 | 10:04 | |
| Mon, 27-Jan | 06:29 | 07:10 | 07:47 | 12:13 | 16:40 | 17:17 | 17:58 | 10:07 | |
| Tue, 28-Jan | 06:28 | 07:08 | 07:45 | 12:13 | 16:42 | 17:19 | 18:00 | 10:10 | |
| Wed, 29-Jan | 06:26 | 07:07 | 07:44 | 12:14 | 16:44 | 17:21 | 18:01 | 10:13 | |
| Thu, 30-Jan | 06:25 | 07:06 | 07:42 | 12:14 | 16:46 | 17:22 | 18:03 | 10:16 | |
| Fri, 31-Jan | 06:24 | 07:04 | 07:41 | 12:14 | 16:47 | 17:24 | 18:05 | 10:19 | |
| Sat, 01-Feb | 06:23 | 07:03 | 07:39 | 12:14 | 16:49 | 17:26 | 18:06 | 10:22 | |
| Sun, 02-Feb | 06:21 | 07:02 | 07:38 | 12:14 | 16:51 | 17:27 | 18:08 | 10:25 | |
| Mon, 03-Feb | 06:20 | 07:00 | 07:36 | 12:14 | 16:53 | 17:29 | 18:09 | 10:29 | |
| Tue, 04-Feb | 06:18 | 06:59 | 07:35 | 12:14 | 16:55 | 17:31 | 18:11 | 10:32 | |
| Wed, 05-Feb | 06:17 | 06:57 | 07:33 | 12:14 | 16:57 | 17:33 | 18:13 | 10:35 | |
| Thu, 06-Feb | 06:15 | 06:55 | 07:31 | 12:15 | 16:59 | 17:34 | 18:14 | 10:38 | |
| Fri, 07-Feb | 06:14 | 06:54 | 07:29 | 12:15 | 17:00 | 17:36 | 18:16 | 10:42 | |
| Sat, 08-Feb | 06:12 | 06:52 | 07:28 | 12:15 | 17:02 | 17:38 | 18:18 | 10:45 | |
| Sun, 09-Feb | 06:11 | 06:50 | 07:26 | 12:15 | 17:04 | 17:40 | 18:19 | 10:49 | |
| Mon, 10-Feb | 06:09 | 06:49 | 07:24 | 12:15 | 17:06 | 17:41 | 18:21 | 10:52 | |
| Tue, 11-Feb | 06:08 | 06:47 | 07:22 | 12:15 | 17:08 | 17:43 | 18:23 | 10:56 | |
| Wed, 12-Feb | 06:06 | 06:45 | 07:20 | 12:15 | 17:10 | 17:45 | 18:24 | 10:59 | |
| Thu, 13-Feb | 06:04 | 06:44 | 07:18 | 12:15 | 17:12 | 17:47 | 18:26 | 11:03 | |
| Fri, 14-Feb | 06:02 | 06:42 | 07:17 | 12:15 | 17:13 | 17:48 | 18:28 | 11:06 | |
| Sat, 15-Feb | 06:01 | 06:40 | 07:15 | 12:15 | 17:15 | 17:50 | 18:29 | 11:10 | |
| Sun, 16-Feb | 05:59 | 06:38 | 07:13 | 12:14 | 17:17 | 17:52 | 18:31 | 11:13 | |
| Mon, 17-Feb | 05:57 | 06:36 | 07:11 | 12:14 | 17:19 | 17:54 | 18:33 | 11:17 | |
| Tue, 18-Feb | 05:55 | 06:34 | 07:09 | 12:14 | 17:21 | 17:55 | 18:34 | 11:21 | |
| Wed, 19-Feb | 05:53 | 06:32 | 07:07 | 12:14 | 17:23 | 17:57 | 18:36 | 11:24 | |
| Thu, 20-Feb | 05:51 | 06:30 | 07:05 | 12:14 | 17:24 | 17:59 | 18:38 | 11:28 | |
| Fri, 21-Feb | 05:49 | 06:28 | 07:03 | 12:14 | 17:26 | 18:01 | 18:40 | 11:32 | |
| Sat, 22-Feb | 05:47 | 06:26 | 07:01 | 12:14 | 17:28 | 18:02 | 18:41 | 11:35 | |
| Sun, 23-Feb | 05:45 | 06:24 | 06:58 | 12:14 | 17:30 | 18:04 | 18:43 | 11:39 | |
| Mon, 24-Feb | 05:43 | 06:22 | 06:56 | 12:14 | 17:32 | 18:06 | 18:45 | 11:43 | |
| Tue, 25-Feb | 05:41 | 06:20 | 06:54 | 12:13 | 17:34 | 18:08 | 18:46 | 11:47 | |
| Wed, 26-Feb | 05:39 | 06:18 | 06:52 | 12:13 | 17:35 | 18:09 | 18:48 | 11:51 | |
| Thu, 27-Feb | 05:37 | 06:16 | 06:50 | 12:13 | 17:37 | 18:11 | 18:50 | 11:54 | |
| Fri, 28-Feb | 05:35 | 06:14 | 06:48 | 12:13 | 17:39 | 18:13 | 18:52 | 11:58 | |
| Sat, 01-Mar | 05:33 | 06:12 | 06:46 | 12:13 | 17:41 | 18:14 | 18:53 | 12:02 | |
| Sun, 02-Mar | 05:31 | 06:10 | 06:43 | 12:13 | 17:43 | 18:16 | 18:55 | 12:06 | |
| Mon, 03-Mar | 05:29 | 06:08 | 06:41 | 12:12 | 17:44 | 18:18 | 18:57 | 12:10 | |
| Tue, 04-Mar | 05:27 | 06:05 | 06:39 | 12:12 | 17:46 | 18:20 | 18:59 | 12:14 | |
| Wed, 05-Mar | 05:24 | 06:03 | 06:37 | 12:12 | 17:48 | 18:21 | 19:00 | 12:18 | |
| Thu, 06-Mar | 05:22 | 06:01 | 06:35 | 12:12 | 17:50 | 18:23 | 19:02 | 12:22 | |
| Fri, 07-Mar | 05:20 | 05:59 | 06:32 | 12:11 | 17:51 | 18:25 | 19:04 | 12:26 | |
| Sat, 08-Mar | 05:18 | 05:57 | 06:30 | 12:11 | 17:53 | 18:27 | 19:06 | 12:29 | |
| Sun, 09-Mar | 05:16 | 05:54 | 06:28 | 12:11 | 17:55 | 18:28 | 19:07 | 12:33 | |
| Mon, 10-Mar | 05:13 | 05:52 | 06:26 | 12:11 | 17:57 | 18:30 | 19:09 | 12:37 | |
| Tue, 11-Mar | 05:11 | 05:50 | 06:23 | 12:10 | 17:58 | 18:32 | 19:11 | 12:41 | |
| Wed, 12-Mar | 05:09 | 05:48 | 06:21 | 12:10 | 18:00 | 18:34 | 19:13 | 12:45 | |
| Thu, 13-Mar | 05:06 | 05:45 | 06:19 | 12:10 | 18:02 | 18:35 | 19:15 | 12:49 | |
| Fri, 14-Mar | 05:04 | 05:43 | 06:17 | 12:10 | 18:04 | 18:37 | 19:16 | 12:53 | |
| Sat, 15-Mar | 05:02 | 05:41 | 06:14 | 12:09 | 18:05 | 18:39 | 19:18 | 12:57 | |
| Sun, 16-Mar | 04:59 | 05:39 | 06:12 | 12:09 | 18:07 | 18:41 | 19:20 | 13:02 | |
| Mon, 17-Mar | 04:57 | 05:36 | 06:10 | 12:09 | 18:09 | 18:42 | 19:22 | 13:06 | |
| Tue, 18-Mar | 04:55 | 05:34 | 06:07 | 12:08 | 18:11 | 18:44 | 19:24 | 13:10 | |
| Wed, 19-Mar | 04:52 | 05:32 | 06:05 | 12:08 | 18:12 | 18:46 | 19:25 | 13:14 | |
| Thu, 20-Mar | 04:50 | 05:29 | 06:03 | 12:08 | 18:14 | 18:48 | 19:27 | 13:18 | |
| Fri, 21-Mar | 04:47 | 05:27 | 06:00 | 12:08 | 18:16 | 18:49 | 19:29 | 13:22 | |
| Sat, 22-Mar | 04:45 | 05:25 | 05:58 | 12:07 | 18:17 | 18:51 | 19:31 | 13:26 | |
| Sun, 23-Mar | 04:42 | 05:22 | 05:56 | 12:07 | 18:19 | 18:53 | 19:33 | 13:30 | |
| Mon, 24-Mar | 04:40 | 05:20 | 05:54 | 12:07 | 18:21 | 18:55 | 19:35 | 13:34 | |
| Tue, 25-Mar | 04:37 | 05:18 | 05:51 | 12:06 | 18:22 | 18:56 | 19:37 | 13:38 | |
| Wed, 26-Mar | 04:35 | 05:15 | 05:49 | 12:06 | 18:24 | 18:58 | 19:39 | 13:42 | |
| Thu, 27-Mar | 04:32 | 05:13 | 05:47 | 12:06 | 18:26 | 19:00 | 19:40 | 13:46 | |
| Fri, 28-Mar | 04:30 | 05:10 | 05:44 | 12:05 | 18:28 | 19:02 | 19:42 | 13:51 | |
| Sat, 29-Mar | 04:27 | 05:08 | 05:42 | 12:05 | 18:29 | 19:03 | 19:44 | 13:55 | |
| Sun, 30-Mar | 05:25 | 06:06 | 06:40 | 13:05 | 19:31 | 20:05 | 20:46 | 13:59 | |
| Mon, 31-Mar | 05:22 | 06:03 | 06:37 | 13:05 | 19:33 | 20:07 | 20:48 | 14:03 | |
| Tue, 01-Apr | 05:20 | 06:01 | 06:35 | 13:04 | 19:34 | 20:09 | 20:50 | 14:07 | |
| Wed, 02-Apr | 05:17 | 05:59 | 06:33 | 13:04 | 19:36 | 20:10 | 20:52 | 14:11 | |
| Thu, 03-Apr | 05:15 | 05:56 | 06:31 | 13:04 | 19:38 | 20:12 | 20:54 | 14:15 | |
| Fri, 04-Apr | 05:12 | 05:54 | 06:28 | 13:03 | 19:40 | 20:14 | 20:56 | 14:20 | |
| Sat, 05-Apr | 05:10 | 05:52 | 06:26 | 13:03 | 19:41 | 20:16 | 20:58 | 14:24 | |
| Sun, 06-Apr | 05:07 | 05:49 | 06:24 | 13:03 | 19:43 | 20:18 | 21:00 | 14:28 | |
| Mon, 07-Apr | 05:05 | 05:47 | 06:22 | 13:03 | 19:45 | 20:19 | 21:02 | 14:32 | |
| Tue, 08-Apr | 05:02 | 05:44 | 06:19 | 13:02 | 19:46 | 20:21 | 21:04 | 14:36 | |
| Wed, 09-Apr | 04:59 | 05:42 | 06:17 | 13:02 | 19:48 | 20:23 | 21:06 | 14:40 | |
| Thu, 10-Apr | 04:57 | 05:40 | 06:15 | 13:02 | 19:50 | 20:25 | 21:08 | 14:45 | |
| Fri, 11-Apr | 04:54 | 05:37 | 06:13 | 13:01 | 19:51 | 20:27 | 21:10 | 14:49 | |
| Sat, 12-Apr | 04:52 | 05:35 | 06:10 | 13:01 | 19:53 | 20:29 | 21:12 | 14:53 | |
| Sun, 13-Apr | 04:49 | 05:33 | 06:08 | 13:01 | 19:55 | 20:30 | 21:14 | 14:57 | |
| Mon, 14-Apr | 04:46 | 05:30 | 06:06 | 13:01 | 19:56 | 20:32 | 21:17 | 15:01 | |
| Tue, 15-Apr | 04:44 | 05:28 | 06:04 | 13:00 | 19:58 | 20:34 | 21:19 | 15:05 | |
| Wed, 16-Apr | 04:41 | 05:26 | 06:02 | 13:00 | 20:00 | 20:36 | 21:21 | 15:10 | |
| Thu, 17-Apr | 04:39 | 05:24 | 06:00 | 13:00 | 20:02 | 20:38 | 21:23 | 15:14 | |
| Fri, 18-Apr | 04:36 | 05:21 | 05:57 | 13:00 | 20:03 | 20:40 | 21:25 | 15:18 | |
| Sat, 19-Apr | 04:33 | 05:19 | 05:55 | 13:00 | 20:05 | 20:41 | 21:27 | 15:22 | |
| Sun, 20-Apr | 04:31 | 05:17 | 05:53 | 12:59 | 20:07 | 20:43 | 21:30 | 15:26 | |
| Mon, 21-Apr | 04:28 | 05:14 | 05:51 | 12:59 | 20:08 | 20:45 | 21:32 | 15:30 | |
| Tue, 22-Apr | 04:26 | 05:12 | 05:49 | 12:59 | 20:10 | 20:47 | 21:34 | 15:34 | |
| Wed, 23-Apr | 04:23 | 05:10 | 05:47 | 12:59 | 20:12 | 20:49 | 21:36 | 15:39 | |
| Thu, 24-Apr | 04:20 | 05:08 | 05:45 | 12:59 | 20:13 | 20:51 | 21:38 | 15:43 | |
| Fri, 25-Apr | 04:18 | 05:05 | 05:43 | 12:58 | 20:15 | 20:53 | 21:41 | 15:47 | |
| Sat, 26-Apr | 04:15 | 05:03 | 05:41 | 12:58 | 20:17 | 20:55 | 21:43 | 15:51 | |
| Sun, 27-Apr | 04:13 | 05:01 | 05:39 | 12:58 | 20:18 | 20:56 | 21:45 | 15:55 | |
| Mon, 28-Apr | 04:10 | 04:59 | 05:37 | 12:58 | 20:20 | 20:58 | 21:48 | 15:59 | |
| Tue, 29-Apr | 04:08 | 04:57 | 05:35 | 12:58 | 20:22 | 21:00 | 21:50 | 16:03 | |
| Wed, 30-Apr | 04:05 | 04:55 | 05:33 | 12:58 | 20:23 | 21:02 | 21:52 | 16:07 | |
| Thu, 01-May | 04:02 | 04:52 | 05:31 | 12:58 | 20:25 | 21:04 | 21:54 | 16:11 | |
| Fri, 02-May | 04:00 | 04:50 | 05:29 | 12:57 | 20:27 | 21:06 | 21:57 | 16:15 | |
| Sat, 03-May | 03:57 | 04:48 | 05:27 | 12:57 | 20:28 | 21:08 | 21:59 | 16:19 | |
| Sun, 04-May | 03:55 | 04:46 | 05:25 | 12:57 | 20:30 | 21:10 | 22:02 | 16:23 | |
| Mon, 05-May | 03:52 | 04:44 | 05:24 | 12:57 | 20:32 | 21:11 | 22:04 | 16:27 | |
| Tue, 06-May | 03:50 | 04:42 | 05:22 | 12:57 | 20:33 | 21:13 | 22:06 | 16:31 | |
| Wed, 07-May | 03:47 | 04:40 | 05:20 | 12:57 | 20:35 | 21:15 | 22:09 | 16:34 | |
| Thu, 08-May | 03:45 | 04:38 | 05:18 | 12:57 | 20:37 | 21:17 | 22:11 | 16:38 | |
| Fri, 09-May | 03:42 | 04:36 | 05:17 | 12:57 | 20:38 | 21:19 | 22:13 | 16:42 | |
| Sat, 10-May | 03:40 | 04:34 | 05:15 | 12:57 | 20:40 | 21:21 | 22:16 | 16:46 | |
| Sun, 11-May | 03:37 | 04:32 | 05:13 | 12:57 | 20:41 | 21:22 | 22:18 | 16:50 | |
| Mon, 12-May | 03:35 | 04:31 | 05:12 | 12:57 | 20:43 | 21:24 | 22:21 | 16:53 | |
| Tue, 13-May | 03:33 | 04:29 | 05:10 | 12:57 | 20:44 | 21:26 | 22:23 | 16:57 | |
| Wed, 14-May | 03:30 | 04:27 | 05:09 | 12:57 | 20:46 | 21:28 | 22:25 | 17:00 | |
| Thu, 15-May | 03:28 | 04:25 | 05:07 | 12:57 | 20:48 | 21:30 | 22:28 | 17:04 | |
| Fri, 16-May | 03:25 | 04:23 | 05:06 | 12:57 | 20:49 | 21:31 | 22:30 | 17:07 | |
| Sat, 17-May | 03:23 | 04:22 | 05:04 | 12:57 | 20:51 | 21:33 | 22:32 | 17:11 | |
| Sun, 18-May | 03:21 | 04:20 | 05:03 | 12:57 | 20:52 | 21:35 | 22:35 | 17:14 | |
| Mon, 19-May | 03:19 | 04:18 | 05:01 | 12:57 | 20:53 | 21:37 | 22:37 | 17:18 | |
| Tue, 20-May | 03:16 | 04:17 | 05:00 | 12:57 | 20:55 | 21:38 | 22:40 | 17:21 | |
| Wed, 21-May | 03:14 | 04:15 | 04:59 | 12:57 | 20:56 | 21:40 | 22:42 | 17:24 | |
Max Height (solar noon) is when the sun is highest in the sky.
Day length is dusk to dawn. Times will vary if there is a hill on the horizon.
After 'Light' (nautical dawn) and before 'Dark' (nautical dusk), the horizon should be visible.
After 'Dawn' (civil dawn) and before 'Dusk' (civil dusk, or lighting up time), there should be enough light to read,
There will be enough light for walking for at least 30 minutes before sunrise and after sunset, even on an overcast day.
Hertfordshire moonlight
Moonlight chart for walking at night.
| Night of | Sunset | Dusk | Moon Visible | Dawn | Sunrise | Phase | % Full | Max. Ht. | Night Walk | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sat, 23-Nov | 16:00 | 16:38 | 00:02 | dawn | 06:57 | 07:35 | 41 % | 06:57 | |||
| Sun, 24-Nov | 15:59 | 16:37 | 01:12 | dawn | 06:58 | 07:37 | 32 % | 07:36 | |||
| Mon, 25-Nov | 15:58 | 16:37 | 02:22 | dawn | 07:00 | 07:38 | 24 % | 08:14 | |||
| Tue, 26-Nov | 15:57 | 16:36 | 03:32 | dawn | 07:01 | 07:40 | 16 % | 08:54 | |||
| Wed, 27-Nov | 15:56 | 16:35 | 04:44 | dawn | 07:02 | 07:41 | 10 % | 09:35 | |||
| Thu, 28-Nov | 15:55 | 16:34 | 05:59 | dawn | 07:04 | 07:43 | 5 % | 10:19 | |||
| Fri, 29-Nov | 15:55 | 16:34 | 07:05 | 07:44 | 2 % | 11:07 | |||||
| Sat, 30-Nov | 15:54 | 16:33 | 07:06 | 07:46 | 0 % | 11:58 | |||||
| Sun, 01-Dec | 15:53 | 16:33 | 07:08 | 07:47 | 1 % | ||||||
| Mon, 02-Dec | 15:53 | 16:32 | 07:09 | 07:49 | 3 % | 12:53 | |||||
| Tue, 03-Dec | 15:52 | 16:32 | dusk | 17:06 | 07:10 | 07:50 | 8 % | 13:49 | |||
| Wed, 04-Dec | 15:52 | 16:31 | dusk | 18:20 | 07:11 | 07:51 | 14 % | 14:46 | |||
| Thu, 05-Dec | 15:51 | 16:31 | dusk | 19:43 | 07:12 | 07:52 | 23 % | 15:40 | |||
| Fri, 06-Dec | 15:51 | 16:31 | dusk | 21:08 | 07:13 | 07:54 | 32 % | 16:32 | |||
| Sat, 07-Dec | 15:50 | 16:31 | dusk | 22:34 | 07:15 | 07:55 | 43 % | 17:21 | |||
| Sun, 08-Dec | 15:50 | 16:30 | dusk | 23:58 | 07:16 | 07:56 | 54 % | 18:09 | |||
| Mon, 09-Dec | 15:50 | 16:30 | dusk | 01:23 | 07:17 | 07:57 | 65 % | 18:56 | |||
| Tue, 10-Dec | 15:50 | 16:30 | dusk | 02:50 | 07:18 | 07:58 | 76 % | 19:44 | after dusk | ||
| Wed, 11-Dec | 15:50 | 16:30 | dusk | 04:20 | 07:18 | 07:59 | 85 % | 20:35 | after dusk | ||
| Thu, 12-Dec | 15:50 | 16:30 | dusk | 05:53 | 07:19 | 08:00 | 92 % | 21:30 | after dusk | ||
| Fri, 13-Dec | 15:50 | 16:30 | dusk | dawn | 07:20 | 08:01 | 97 % | 22:29 | all night | ||
| Sat, 14-Dec | 15:50 | 16:30 | dusk | dawn | 07:21 | 08:02 | 100 % | 23:31 | all night | ||
| Sun, 15-Dec | 15:50 | 16:31 | dusk | dawn | 07:22 | 08:02 | 99 % | 00:34 | all night | ||
| Mon, 16-Dec | 15:50 | 16:31 | dusk | dawn | 07:22 | 08:03 | 96 % | 01:35 | all night | ||
| Tue, 17-Dec | 15:50 | 16:31 | 17:45 | dawn | 07:23 | 08:04 | 92 % | 02:31 | before dawn | ||
| Wed, 18-Dec | 15:51 | 16:31 | 19:08 | dawn | 07:24 | 08:04 | 85 % | 03:23 | before dawn | ||
| Thu, 19-Dec | 15:51 | 16:32 | 20:28 | dawn | 07:24 | 08:05 | 77 % | 04:09 | before dawn | ||
| Fri, 20-Dec | 15:52 | 16:32 | 21:44 | dawn | 07:25 | 08:06 | 68 % | 04:52 | |||
| Sat, 21-Dec | 15:52 | 16:33 | 22:57 | dawn | 07:25 | 08:06 | 59 % | 05:32 | |||
| Sun, 22-Dec | 15:53 | 16:33 | 00:07 | dawn | 07:26 | 08:06 | 49 % | 06:11 | |||
| Mon, 23-Dec | 15:53 | 16:34 | 01:17 | dawn | 07:26 | 08:07 | 40 % | 06:50 | |||
| Tue, 24-Dec | 15:54 | 16:35 | 02:28 | dawn | 07:26 | 08:07 | 31 % | 07:30 | |||
| Wed, 25-Dec | 15:55 | 16:35 | 03:41 | dawn | 07:27 | 08:07 | 23 % | 08:13 | |||
| Thu, 26-Dec | 15:55 | 16:36 | 04:57 | dawn | 07:27 | 08:08 | 15 % | 08:59 | |||
| Fri, 27-Dec | 15:56 | 16:37 | 06:13 | dawn | 07:27 | 08:08 | 9 % | 09:49 | |||
| Sat, 28-Dec | 15:57 | 16:38 | 07:26 | dawn | 07:27 | 08:08 | 4 % | 10:43 | |||
| Sun, 29-Dec | 15:58 | 16:38 | 07:27 | 08:08 | 1 % | 11:40 | |||||
| Mon, 30-Dec | 15:59 | 16:39 | 07:27 | 08:08 | 0 % | ||||||
| Tue, 31-Dec | 16:00 | 16:40 | 07:27 | 08:08 | 1 % | 12:38 | |||||
| Wed, 01-Jan | 16:01 | 16:41 | dusk | 17:28 | 07:27 | 08:07 | 5 % | 13:34 | |||
| Thu, 02-Jan | 16:02 | 16:42 | dusk | 18:55 | 07:27 | 08:07 | 11 % | 14:28 | |||
| Fri, 03-Jan | 16:03 | 16:43 | dusk | 20:21 | 07:27 | 08:07 | 19 % | 15:18 | |||
| Sat, 04-Jan | 16:04 | 16:44 | dusk | 21:47 | 07:27 | 08:07 | 28 % | 16:07 | |||
| Sun, 05-Jan | 16:06 | 16:46 | dusk | 23:11 | 07:26 | 08:06 | 39 % | 16:54 | |||
| Mon, 06-Jan | 16:07 | 16:47 | dusk | 00:36 | 07:26 | 08:06 | 50 % | 17:41 | |||
| Tue, 07-Jan | 16:08 | 16:48 | dusk | 02:03 | 07:26 | 08:05 | 61 % | 18:30 | |||
| Wed, 08-Jan | 16:09 | 16:49 | dusk | 03:32 | 07:25 | 08:05 | 72 % | 19:22 | |||
| Thu, 09-Jan | 16:11 | 16:50 | dusk | 05:02 | 07:25 | 08:04 | 82 % | 20:17 | after dusk | ||
| Fri, 10-Jan | 16:12 | 16:52 | dusk | 06:25 | 07:24 | 08:04 | 90 % | 21:16 | after dusk | ||
| Sat, 11-Jan | 16:14 | 16:53 | dusk | dawn | 07:24 | 08:03 | 95 % | 22:18 | all night | ||
| Sun, 12-Jan | 16:15 | 16:54 | dusk | dawn | 07:23 | 08:02 | 99 % | 23:19 | all night | ||
| Mon, 13-Jan | 16:17 | 16:56 | dusk | dawn | 07:22 | 08:01 | 100 % | 00:17 | all night | ||
| Tue, 14-Jan | 16:18 | 16:57 | dusk | dawn | 07:22 | 08:01 | 99 % | 01:11 | all night | ||
| Wed, 15-Jan | 16:20 | 16:59 | 18:04 | dawn | 07:21 | 08:00 | 95 % | 02:00 | before dawn | ||
| Thu, 16-Jan | 16:21 | 17:00 | 19:23 | dawn | 07:20 | 07:59 | 90 % | 02:45 | before dawn | ||
| Fri, 17-Jan | 16:23 | 17:02 | 20:38 | dawn | 07:19 | 07:58 | 84 % | 03:26 | before dawn | ||
| Sat, 18-Jan | 16:25 | 17:03 | 21:50 | dawn | 07:18 | 07:57 | 76 % | 04:06 | before dawn | ||
| Sun, 19-Jan | 16:26 | 17:05 | 23:01 | dawn | 07:17 | 07:56 | 67 % | 04:45 | |||
| Mon, 20-Jan | 16:28 | 17:06 | 00:12 | dawn | 07:16 | 07:54 | 58 % | 05:25 | |||
| Tue, 21-Jan | 16:30 | 17:08 | 01:24 | dawn | 07:15 | 07:53 | 49 % | 06:07 | |||
| Wed, 22-Jan | 16:31 | 17:09 | 02:38 | dawn | 07:14 | 07:52 | 39 % | 06:51 | |||
| Thu, 23-Jan | 16:33 | 17:11 | 03:54 | dawn | 07:13 | 07:51 | 30 % | 07:39 | |||
| Fri, 24-Jan | 16:35 | 17:12 | 05:08 | dawn | 07:12 | 07:50 | 22 % | 08:31 | |||
| Sat, 25-Jan | 16:37 | 17:14 | 06:15 | dawn | 07:11 | 07:48 | 14 % | 09:26 | |||
| Sun, 26-Jan | 16:38 | 17:16 | 07:08 | dawn | 07:10 | 07:47 | 8 % | 10:24 | |||
| Mon, 27-Jan | 16:40 | 17:17 | 07:08 | 07:45 | 3 % | 11:21 | |||||
| Tue, 28-Jan | 16:42 | 17:19 | 07:07 | 07:44 | 0 % | ||||||
| Wed, 29-Jan | 16:44 | 17:21 | 07:06 | 07:42 | 0 % | 12:17 | |||||
| Thu, 30-Jan | 16:46 | 17:22 | dusk | 18:00 | 07:04 | 07:41 | 3 % | 13:11 | |||
| Fri, 31-Jan | 16:47 | 17:24 | dusk | 19:29 | 07:03 | 07:39 | 8 % | 14:01 | |||
| Sat, 01-Feb | 16:49 | 17:26 | dusk | 20:56 | 07:02 | 07:38 | 15 % | 14:50 | |||
| Sun, 02-Feb | 16:51 | 17:27 | dusk | 22:23 | 07:00 | 07:36 | 25 % | 15:38 | |||
| Mon, 03-Feb | 16:53 | 17:29 | dusk | 23:50 | 06:59 | 07:35 | 35 % | 16:28 | |||
| Tue, 04-Feb | 16:55 | 17:31 | dusk | 01:19 | 06:57 | 07:33 | 46 % | 17:19 | |||
| Wed, 05-Feb | 16:57 | 17:33 | dusk | 02:49 | 06:55 | 07:31 | 58 % | 18:13 | |||
| Thu, 06-Feb | 16:59 | 17:34 | dusk | 04:13 | 06:54 | 07:29 | 68 % | 19:10 | |||
| Fri, 07-Feb | 17:00 | 17:36 | dusk | 05:26 | 06:52 | 07:28 | 78 % | 20:09 | after dusk | ||
| Sat, 08-Feb | 17:02 | 17:38 | dusk | 06:20 | 06:50 | 07:26 | 86 % | 21:09 | after dusk | ||
| Sun, 09-Feb | 17:04 | 17:40 | dusk | dawn | 06:49 | 07:24 | 93 % | 22:07 | all night | ||
| Mon, 10-Feb | 17:06 | 17:41 | dusk | dawn | 06:47 | 07:22 | 97 % | 23:02 | all night | ||
| Tue, 11-Feb | 17:08 | 17:43 | dusk | dawn | 06:45 | 07:20 | 100 % | 23:52 | all night | ||
| Wed, 12-Feb | 17:10 | 17:45 | dusk | dawn | 06:44 | 07:18 | 100 % | 00:38 | all night | ||
| Thu, 13-Feb | 17:12 | 17:47 | 18:19 | dawn | 06:42 | 07:17 | 98 % | 01:21 | before dawn | ||
| Fri, 14-Feb | 17:13 | 17:48 | 19:33 | dawn | 06:40 | 07:15 | 94 % | 02:02 | before dawn | ||
| Sat, 15-Feb | 17:15 | 17:50 | 20:44 | dawn | 06:38 | 07:13 | 89 % | 02:41 | before dawn | ||
| Sun, 16-Feb | 17:17 | 17:52 | 21:55 | dawn | 06:36 | 07:11 | 83 % | 03:21 | before dawn | ||
| Mon, 17-Feb | 17:19 | 17:54 | 23:07 | dawn | 06:34 | 07:09 | 75 % | 04:01 | |||
| Tue, 18-Feb | 17:21 | 17:55 | 00:20 | dawn | 06:32 | 07:07 | 66 % | 04:44 | |||
| Wed, 19-Feb | 17:23 | 17:57 | 01:35 | dawn | 06:30 | 07:05 | 57 % | 05:30 | |||
| Thu, 20-Feb | 17:24 | 17:59 | 02:49 | dawn | 06:28 | 07:03 | 48 % | 06:20 | |||
| Fri, 21-Feb | 17:26 | 18:01 | 03:59 | dawn | 06:26 | 07:01 | 38 % | 07:13 | |||
| Sat, 22-Feb | 17:28 | 18:02 | 04:58 | dawn | 06:24 | 06:58 | 28 % | 08:08 | |||
| Sun, 23-Feb | 17:30 | 18:04 | 05:43 | dawn | 06:22 | 06:56 | 20 % | 09:05 | |||
| Mon, 24-Feb | 17:32 | 18:06 | 06:15 | dawn | 06:20 | 06:54 | 12 % | 10:02 | |||
| Tue, 25-Feb | 17:34 | 18:08 | 06:18 | 06:52 | 6 % | 10:56 | |||||
| Wed, 26-Feb | 17:35 | 18:09 | 06:16 | 06:50 | 2 % | 11:49 | |||||
| Thu, 27-Feb | 17:37 | 18:11 | 06:14 | 06:48 | 0 % | ||||||
| Fri, 28-Feb | 17:39 | 18:13 | dusk | 18:28 | 06:12 | 06:46 | 1 % | 12:40 | |||
| Sat, 01-Mar | 17:41 | 18:14 | dusk | 19:58 | 06:10 | 06:43 | 6 % | 13:30 | |||
| Sun, 02-Mar | 17:43 | 18:16 | dusk | 21:29 | 06:08 | 06:41 | 12 % | 14:20 | |||
| Mon, 03-Mar | 17:44 | 18:18 | dusk | 23:01 | 06:05 | 06:39 | 21 % | 15:12 | |||
| Tue, 04-Mar | 17:46 | 18:20 | dusk | 00:33 | 06:03 | 06:37 | 31 % | 16:07 | |||
| Wed, 05-Mar | 17:48 | 18:21 | dusk | 02:02 | 06:01 | 06:35 | 42 % | 17:04 | |||
| Thu, 06-Mar | 17:50 | 18:23 | dusk | 03:19 | 05:59 | 06:32 | 54 % | 18:04 | |||
| Fri, 07-Mar | 17:51 | 18:25 | dusk | 04:19 | 05:57 | 06:30 | 64 % | 19:04 | |||
| Sat, 08-Mar | 17:53 | 18:27 | dusk | 05:01 | 05:54 | 06:28 | 74 % | 20:02 | |||
| Sun, 09-Mar | 17:55 | 18:28 | dusk | 05:29 | 05:52 | 06:26 | 83 % | 20:58 | after dusk | ||
| Mon, 10-Mar | 17:57 | 18:30 | dusk | 05:48 | 05:50 | 06:23 | 90 % | 21:48 | after dusk | ||
| Tue, 11-Mar | 17:58 | 18:32 | dusk | dawn | 05:48 | 06:21 | 95 % | 22:35 | all night | ||
| Wed, 12-Mar | 18:00 | 18:34 | dusk | dawn | 05:45 | 06:19 | 98 % | 23:18 | all night | ||
| Thu, 13-Mar | 18:02 | 18:35 | dusk | dawn | 05:43 | 06:17 | 100 % | 23:59 | all night | ||
| Fri, 14-Mar | 18:04 | 18:37 | dusk | dawn | 05:41 | 06:14 | 100 % | 00:39 | all night | ||
| Sat, 15-Mar | 18:05 | 18:39 | 19:41 | dawn | 05:39 | 06:12 | 97 % | 01:18 | before dawn | ||
| Sun, 16-Mar | 18:07 | 18:41 | 20:53 | dawn | 05:36 | 06:10 | 93 % | 01:58 | before dawn | ||
| Mon, 17-Mar | 18:09 | 18:42 | 22:05 | dawn | 05:34 | 06:07 | 88 % | 02:40 | before dawn | ||
| Tue, 18-Mar | 18:11 | 18:44 | 23:20 | dawn | 05:32 | 06:05 | 81 % | 03:25 | before dawn | ||
| Wed, 19-Mar | 18:12 | 18:46 | 00:34 | dawn | 05:29 | 06:03 | 73 % | 04:12 | |||
| Thu, 20-Mar | 18:14 | 18:48 | 01:45 | dawn | 05:27 | 06:00 | 64 % | 05:03 | |||
| Fri, 21-Mar | 18:16 | 18:49 | 02:48 | dawn | 05:25 | 05:58 | 55 % | 05:57 | |||
| Sat, 22-Mar | 18:17 | 18:51 | 03:37 | dawn | 05:22 | 05:56 | 45 % | 06:52 | |||
| Sun, 23-Mar | 18:19 | 18:53 | 04:14 | dawn | 05:20 | 05:54 | 35 % | 07:47 | |||
| Mon, 24-Mar | 18:21 | 18:55 | 04:40 | dawn | 05:18 | 05:51 | 25 % | 08:41 | |||
| Tue, 25-Mar | 18:22 | 18:56 | 04:59 | dawn | 05:15 | 05:49 | 16 % | 09:34 | |||
| Wed, 26-Mar | 18:24 | 18:58 | 05:13 | 05:47 | 9 % | 10:25 | |||||
| Thu, 27-Mar | 18:26 | 19:00 | 05:10 | 05:44 | 3 % | 11:15 | |||||
| Fri, 28-Mar | 18:28 | 19:02 | 05:08 | 05:42 | 0 % | ||||||
| Sat, 29-Mar | 18:29 | 19:03 | 06:06 | 06:40 | 0 % | 12:06 | |||||
| Sun, 30-Mar | 19:31 | 20:05 | dusk | 21:29 | 06:03 | 06:37 | 3 % | 13:58 | |||
| Mon, 31-Mar | 19:33 | 20:07 | dusk | 23:05 | 06:01 | 06:35 | 9 % | 14:54 | |||
| Tue, 01-Apr | 19:34 | 20:09 | dusk | 00:39 | 05:59 | 06:33 | 17 % | 15:52 | |||
| Wed, 02-Apr | 19:36 | 20:10 | dusk | 02:05 | 05:56 | 06:31 | 27 % | 16:53 | |||
| Thu, 03-Apr | 19:38 | 20:12 | dusk | 03:14 | 05:54 | 06:28 | 38 % | 17:56 | |||
| Fri, 04-Apr | 19:40 | 20:14 | dusk | 04:02 | 05:52 | 06:26 | 49 % | 18:56 | |||
| Sat, 05-Apr | 19:41 | 20:16 | dusk | 04:34 | 05:49 | 06:24 | 59 % | 19:53 | |||
| Sun, 06-Apr | 19:43 | 20:18 | dusk | 04:55 | 05:47 | 06:22 | 69 % | 20:46 | |||
| Mon, 07-Apr | 19:45 | 20:19 | dusk | 05:11 | 05:44 | 06:19 | 78 % | 21:33 | after dusk | ||
| Tue, 08-Apr | 19:46 | 20:21 | dusk | 05:23 | 05:42 | 06:17 | 86 % | 22:17 | after dusk | ||
| Wed, 09-Apr | 19:48 | 20:23 | dusk | 05:32 | 05:40 | 06:15 | 92 % | 22:58 | after dusk | ||
| Thu, 10-Apr | 19:50 | 20:25 | dusk | dawn | 05:37 | 06:13 | 96 % | 23:38 | all night | ||
| Fri, 11-Apr | 19:51 | 20:27 | dusk | dawn | 05:35 | 06:10 | 99 % | 00:17 | all night | ||
| Sat, 12-Apr | 19:53 | 20:29 | dusk | dawn | 05:33 | 06:08 | 100 % | 00:57 | all night | ||
| Sun, 13-Apr | 19:55 | 20:30 | 20:53 | dawn | 05:30 | 06:06 | 99 % | 01:38 | before dawn | ||
| Mon, 14-Apr | 19:56 | 20:32 | 22:06 | dawn | 05:28 | 06:04 | 97 % | 02:22 | before dawn | ||
| Tue, 15-Apr | 19:58 | 20:34 | 23:21 | dawn | 05:26 | 06:02 | 92 % | 03:08 | before dawn | ||
| Wed, 16-Apr | 20:00 | 20:36 | 00:33 | dawn | 05:24 | 06:00 | 87 % | 03:58 | before dawn | ||
| Thu, 17-Apr | 20:02 | 20:38 | 01:39 | dawn | 05:21 | 05:57 | 79 % | 04:50 | before dawn | ||
| Fri, 18-Apr | 20:03 | 20:40 | 02:33 | dawn | 05:19 | 05:55 | 71 % | 05:44 | |||
| Sat, 19-Apr | 20:05 | 20:41 | 03:13 | dawn | 05:17 | 05:53 | 61 % | 06:38 | |||
| Sun, 20-Apr | 20:07 | 20:43 | 03:41 | dawn | 05:14 | 05:51 | 51 % | 07:31 | |||
| Mon, 21-Apr | 20:08 | 20:45 | 04:02 | dawn | 05:12 | 05:49 | 41 % | 08:23 | |||
| Tue, 22-Apr | 20:10 | 20:47 | 04:18 | dawn | 05:10 | 05:47 | 30 % | 09:12 | |||
| Wed, 23-Apr | 20:12 | 20:49 | 04:31 | dawn | 05:08 | 05:45 | 20 % | 10:01 | |||
| Thu, 24-Apr | 20:13 | 20:51 | 04:43 | dawn | 05:05 | 05:43 | 12 % | 10:51 | |||
| Fri, 25-Apr | 20:15 | 20:53 | 04:56 | dawn | 05:03 | 05:41 | 5 % | 11:42 | |||
| Sat, 26-Apr | 20:17 | 20:55 | 05:01 | 05:39 | 1 % | ||||||
| Sun, 27-Apr | 20:18 | 20:56 | 04:59 | 05:37 | 0 % | 12:36 | |||||
| Mon, 28-Apr | 20:20 | 20:58 | dusk | 22:03 | 04:57 | 05:35 | 2 % | 13:33 | |||
| Tue, 29-Apr | 20:22 | 21:00 | dusk | 23:37 | 04:55 | 05:33 | 7 % | 14:35 | |||
| Wed, 30-Apr | 20:23 | 21:02 | dusk | 00:57 | 04:52 | 05:31 | 14 % | 15:39 | |||
| Thu, 01-May | 20:25 | 21:04 | dusk | 01:56 | 04:50 | 05:29 | 23 % | 16:43 | |||
| Fri, 02-May | 20:27 | 21:06 | dusk | 02:34 | 04:48 | 05:27 | 33 % | 17:44 | |||
| Sat, 03-May | 20:28 | 21:08 | dusk | 03:00 | 04:46 | 05:25 | 44 % | 18:40 | |||
| Sun, 04-May | 20:30 | 21:10 | dusk | 03:18 | 04:44 | 05:24 | 54 % | 19:30 | |||
| Mon, 05-May | 20:32 | 21:11 | dusk | 03:31 | 04:42 | 05:22 | 64 % | 20:16 | |||
| Tue, 06-May | 20:33 | 21:13 | dusk | 03:41 | 04:40 | 05:20 | 73 % | 20:58 | |||
| Wed, 07-May | 20:35 | 21:15 | dusk | 03:51 | 04:38 | 05:18 | 81 % | 21:38 | after dusk | ||
| Thu, 08-May | 20:37 | 21:17 | dusk | 04:00 | 04:36 | 05:17 | 88 % | 22:17 | after dusk | ||
| Fri, 09-May | 20:38 | 21:19 | dusk | 04:09 | 04:34 | 05:15 | 93 % | 22:56 | after dusk | ||
| Sat, 10-May | 20:40 | 21:21 | dusk | 04:21 | 04:32 | 05:13 | 97 % | 23:37 | after dusk | ||
| Sun, 11-May | 20:41 | 21:22 | dusk | dawn | 04:31 | 05:12 | 99 % | 00:20 | all night | ||
| Mon, 12-May | 20:43 | 21:24 | dusk | dawn | 04:29 | 05:10 | 100 % | 01:06 | all night | ||
| Tue, 13-May | 20:44 | 21:26 | 22:23 | dawn | 04:27 | 05:09 | 98 % | 01:55 | before dawn | ||
| Wed, 14-May | 20:46 | 21:28 | 23:31 | dawn | 04:25 | 05:07 | 95 % | 02:46 | before dawn | ||
| Thu, 15-May | 20:48 | 21:30 | 00:28 | dawn | 04:23 | 05:06 | 90 % | 03:40 | before dawn | ||
| Fri, 16-May | 20:49 | 21:31 | 01:12 | dawn | 04:22 | 05:04 | 84 % | 04:34 | before dawn | ||
| Sat, 17-May | 20:51 | 21:33 | 01:44 | dawn | 04:20 | 05:03 | 76 % | 05:26 | before dawn | ||
| Sun, 18-May | 20:52 | 21:35 | 02:07 | dawn | 04:18 | 05:01 | 66 % | 06:17 | |||
| Mon, 19-May | 20:53 | 21:37 | 02:24 | dawn | 04:17 | 05:00 | 56 % | 07:06 | |||
| Tue, 20-May | 20:55 | 21:38 | 02:37 | dawn | 04:15 | 04:59 | 45 % | 07:54 | |||
| Wed, 21-May | 20:56 | 21:40 | 02:49 | dawn | 04:14 | 04:58 | 34 % | 08:41 | |||
Notes
- The percentage of the moon which is illuminated doesn't vary much with location.
- A full moon is not just bigger, it is much brighter. A quarter moon (1/2 disk visible) give less than 5% of the illumination of a full moon. You can walk with a quarter moon if its high in the sky (after dusk for a growing moon, before dawn for a shrinking moon).
- Sky glow (light reflected by air or clouds) from nearby cities, and especially snow on the ground also effect light levels.
- Times will vary a few minutes, as (i) these figures are for the centre of the county the walk is in, (ii) if there are hills on the horizon, and (iii) if you are on a hill
- Of course, you need a cloudless night as well!