Harlow Circular Walk
An easy walk through south east Hertfordshire.
Hiking weather forecast
Hertfordshire hourly weather (Visual Crossing)
Sunset: 17:28. Dusk: 18:02. Dark: 18:41. Moon 28% (04:58 to dawn)
Updated: Sat, 22-Feb at 17:39
| 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | |
| Today |
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
3%
|
0%
|
0%
|
0%
|
| Sun, 23 Feb |
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
13%
|
13%
|
13%
|
13%
|
13%
|
13%
|
74%
|
74%
|
74%
|
| Mon, 24 Feb |
100%
|
84%
|
84%
|
84%
|
84%
|
84%
|
84%
|
65%
|
65%
|
65%
|
65%
|
65%
|
65%
|
10%
|
10%
|
10%
|
| Tue, 25 Feb |
13%
|
19%
|
19%
|
19%
|
19%
|
19%
|
19%
|
45%
|
45%
|
45%
|
45%
|
45%
|
45%
|
13%
|
13%
|
13%
|
| Wed, 26 Feb |
7%
|
7%
|
7%
|
7%
|
7%
|
7%
|
7%
|
29%
|
29%
|
29%
|
29%
|
29%
|
29%
|
48%
|
48%
|
48%
|
| Thu, 27 Feb |
45%
|
19%
|
19%
|
19%
|
19%
|
19%
|
19%
|
29%
|
29%
|
29%
|
29%
|
29%
|
29%
|
7%
|
7%
|
7%
|
| Fri, 28 Feb |
3%
|
3%
|
3%
|
3%
|
3%
|
3%
|
3%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
3%
|
3%
| 🌫 3% |
| Sat, 01 Mar |
3%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
29%
|
29%
|
29%
|
| Sun, 02 Mar |
10%
|
13%
|
13%
|
13%
|
13%
|
13%
|
13%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
19%
|
19%
|
19%
|
| Mon, 03 Mar |
7%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
| Tue, 04 Mar |
16%
|
7%
|
7%
|
7%
|
7%
|
7%
|
7%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
7%
|
7%
|
7%
|
| Wed, 05 Mar |
7%
|
7%
|
7%
|
7%
|
7%
|
7%
|
7%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
16%
|
16%
|
16%
|
| Thu, 06 Mar |
16%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
| Fri, 07 Mar |
19%
|
13%
|
13%
|
13%
|
13%
|
13%
|
13%
|
29%
|
29%
|
29%
|
29%
|
29%
|
29%
|
32%
|
32%
|
32%
|
| Sat, 08 Mar |
26%
|
23%
|
23%
|
23%
|
23%
|
23%
|
23%
|
19%
|
19%
|
19%
|
19%
|
19%
|
19%
|
19%
|
19%
|
19%
|
Percentages are the chance of rain.
Weather data by Visual Crossing
Hertfordshire hourly weather (Open Meteo)
Sunset: 17:28. Dusk: 18:02. Dark: 18:41. Moon 28% (04:58 to dawn)
Updated: Mon, 20-Jan at 08:36
| 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | |
| Today |
0%
|
0%
|
0%
|
0%
|
0%
|
3%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
| ||
| Tue, 21 Jan | 🌫 0% | 🌫 0% |
0%
| 🌫 0% |
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
|
0%
| 🌫 0% | 🌫 0% |
| Wed, 22 Jan |
23%
|
26%
| 🌫 29% |
30%
|
29%
|
27%
|
25%
|
23%
|
20%
|
18%
|
17%
|
16%
|
15%
|
13%
|
10%
|
8%
|
| Thu, 23 Jan |
3%
|
3%
|
3%
|
3%
|
4%
|
5%
|
8%
|
13%
|
20%
|
28%
|
35%
|
41%
|
43%
|
41%
|
36%
|
29%
|
| Fri, 24 Jan |
33%
|
38%
|
44%
|
51%
|
57%
|
61%
|
63%
|
62%
|
58%
|
53%
|
48%
|
43%
|
40%
|
39%
|
38%
|
39%
|
| Sat, 25 Jan |
54%
|
56%
|
58%
|
60%
|
62%
|
63%
|
63%
|
62%
|
61%
|
60%
|
58%
|
56%
|
53%
|
50%
|
48%
|
45%
|
| Sun, 26 Jan |
25%
|
23%
|
21%
|
20%
|
19%
|
18%
|
18%
|
18%
|
19%
|
21%
|
22%
|
24%
|
27%
|
29%
|
31%
|
34%
|
| Mon, 27 Jan |
51%
|
53%
|
55%
|
56%
|
58%
|
59%
|
60%
|
45%
|
39%
|
35%
|
33%
|
33%
|
32%
|
30%
|
27%
|
26%
|
| Tue, 28 Jan |
32%
|
35%
|
38%
|
39%
|
34%
|
27%
|
23%
|
25%
|
29%
|
32%
|
30%
|
26%
|
23%
|
21%
|
20%
|
19%
|
| Wed, 29 Jan |
29%
|
28%
|
25%
|
23%
|
21%
|
20%
|
19%
|
20%
|
21%
|
23%
|
26%
|
28%
|
29%
|
25%
|
20%
|
16%
|
| Thu, 30 Jan |
23%
|
23%
|
21%
|
20%
|
18%
|
17%
|
16%
|
16%
|
18%
|
19%
|
20%
|
22%
|
23%
|
23%
|
22%
|
21%
|
| Fri, 31 Jan |
19%
|
20%
|
21%
|
22%
|
23%
|
23%
|
23%
|
22%
|
20%
|
18%
|
16%
|
14%
|
13%
|
13%
|
13%
|
14%
|
| Sat, 01 Feb |
13%
|
13%
|
13%
|
14%
|
15%
|
15%
|
16%
|
16%
|
17%
|
17%
|
17%
|
17%
|
16%
|
14%
|
12%
|
10%
|
| Sun, 02 Feb |
3%
|
3%
|
2%
|
1%
|
0%
|
0%
|
0%
|
2%
|
4%
|
7%
|
9%
|
12%
|
13%
|
13%
|
13%
|
12%
|
| Mon, 03 Feb |
13%
|
13%
|
13%
|
13%
|
13%
|
13%
|
13%
|
14%
|
14%
|
15%
|
15%
|
16%
|
16%
|
16%
|
16%
|
16%
|
| Tue, 04 Feb |
13%
|
12%
|
10%
|
9%
|
8%
|
6%
|
6%
|
7%
|
8%
|
10%
|
12%
|
14%
|
16%
|
18%
|
20%
|
22%
|
Percentages are the chance of rain.
Weather data by Open-Meteo
Hertfordshire hourly weather (Met Office)
Sunset: 17:28. Dusk: 18:02. Dark: 18:41. Moon 28% (04:58 to dawn)
Updated: Sat, 22-Feb at 16:00
| 06 | 09 | 12 | 15 | 18 | 21 | |
| Today |
0%
|
0%
| ||||
| Sun, 23 Feb |
9%
|
5%
|
5%
|
50%
|
81%
|
94%
|
| Mon, 24 Feb |
48%
|
16%
|
33%
|
61%
|
6%
|
3%
|
| Tue, 25 Feb |
13%
|
9%
|
10%
|
11%
|
8%
|
6%
|
| Wed, 26 Feb |
3%
|
3%
|
5%
|
8%
|
13%
|
16%
|
| Thu, 27 Feb |
19%
|
15%
|
14%
|
14%
|
10%
|
9%
|
| Fri, 28 Feb |
8%
|
9%
|
4%
|
5%
|
5%
|
7%
|
| Sat, 01 Mar |
11%
|
11%
|
11%
|
12%
|
Percentages are the chance of rain.
Weather data by Met Office
Regional weather (Met Office)
Sunset: 17:28. Dusk: 18:02. Dark: 18:41. Moon 28% (04:58 to dawn)
Updated: Sat, 22-Feb at 17:38
East England
Largely dry with clear skies overnight. Low cloud developing. Breezy.
- Rather cloudy at first, especially in far eastern areas
- Othewise, dry with clear skies for many overnight
- Later tonight areas of low cloud may spread north
- Turning breezy along the east coast
- Cooler than on Friday night
- Minimum Temperature 4C
Sunday:
- Perhaps some early bright spells then becoming cloudy, but staying mainly dry
- Mild again, although not feeling so as windy conditions gradually develop, especially along the east coast
- Maximum Temperature 11C
Outlook for Monday to Wednesday:
- Monday and Tuesday bright or sunny spells and perhaps a few showers
- Wednesday dry, with early fog or low cloud gradually clearing then sunny spells
- Temperatures falling to near average
UK Day 6-7 and week 2
- Changeable weather is expected across the UK during this period with Atlantic weather systems spreading in from the west at times
- These systems will bring periods of wet and windy weather, with a risk of heavy rain and gales at times
- The heaviest rainfall and strongest winds are most likely to affect western and northwestern regions of the UK, with rainfall totals typically lower and winds lighter in the southeast
- Between weather systems, some drier and brighter interludes are likely to develop with lighter winds, spells of sunshine and perhaps a few showers
- Temperatures are likely to be above average overall, although some short-lived slightly colder days are possible at times, particularly in the north of the UK
UK Week 3 and 4
- Changeable weather is expected across the UK with Atlantic weather systems spreading in from the west at times
- These will bring periods of wet and windy weather, with west and northwestern areas likely to see the heaviest rainfall and strongest winds
- Some drier and brighter interludes are expected to develop between systems
- Temperatures are likely to be above average overall, although some short-lived colder spells are possible at times
Weather data by Met Office
Hertfordshire Air Quality (Pollen and UV)
Updated: Sat, 22-Feb at 17:36
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 UV | air q alder | air q | air q | air q | air q | air q | |||||||||||||||||
| Sun, 23 Feb | air q | air q | air q | air q alder | air q alder | air q alder | 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 UV | air q | air q | air q | air q | air q | air q | air q |
| Mon, 24 Feb | 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 UV alder | air q UV alder | air q alder | air q alder | air q | air q | air q | air q |
| Tue, 25 Feb | air q | air q alder | air q alder | air q alder | 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 alder | air q UV alder | air q UV alder | air q alder | air q alder | air q alder | air q alder | air q alder | air q alder |
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: Mon, 20-Jan at 08:36
| 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | |
| Today | 5km | 5km | 5km | 6km | 17km | 28km | 39km | 32km | 30km | 19km | 17km | 14km | 7km | 4km | ||
| Tue, 21 Jan | 0km | 0km | 0km | 0km | 0km | 0km | 0km | 1km | 6km | 11km | 13km | 11km | 6km | 5km | 3km | 2km |
| Wed, 22 Jan | 1km | 3km | 3km | 4km | 5km | 10km | 13km | 23km | 24km | 27km | 17km | 12km | 6km | 5km | 6km | 6km |
| Thu, 23 Jan | 6km | 4km | 2km | 0km | 6km | 12km | 18km | 20km | 22km | 24km | 20km | 15km | 11km | 9km | 6km | 4km |
| Fri, 24 Jan | 14km | 12km | 11km | 10km | 9km | 9km | 9km | 7km | 6km | 5km | 5km | 6km | 6km | 7km | 8km | 9km |
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, 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 | |
| Thu, 22-May | 03:12 | 04:14 | 04:58 | 12:57 | 20:58 | 21:42 | 22:44 | 17:27 | |
| Fri, 23-May | 03:10 | 04:12 | 04:56 | 12:57 | 20:59 | 21:43 | 22:46 | 17:30 | |
| Sat, 24-May | 03:08 | 04:11 | 04:55 | 12:57 | 21:00 | 21:45 | 22:49 | 17:33 | |
| Sun, 25-May | 03:06 | 04:10 | 04:54 | 12:57 | 21:02 | 21:46 | 22:51 | 17:36 | |
| Mon, 26-May | 03:04 | 04:08 | 04:53 | 12:58 | 21:03 | 21:48 | 22:53 | 17:39 | |
| Tue, 27-May | 03:02 | 04:07 | 04:52 | 12:58 | 21:04 | 21:49 | 22:55 | 17:42 | |
| Wed, 28-May | 03:00 | 04:06 | 04:51 | 12:58 | 21:05 | 21:51 | 22:58 | 17:45 | |
| Thu, 29-May | 02:58 | 04:04 | 04:50 | 12:58 | 21:07 | 21:52 | 23:00 | 17:47 | |
| Fri, 30-May | 02:56 | 04:03 | 04:49 | 12:58 | 21:08 | 21:54 | 23:02 | 17:50 | |
| Sat, 31-May | 02:54 | 04:02 | 04:48 | 12:58 | 21:09 | 21:55 | 23:04 | 17:52 | |
| Sun, 01-Jun | 02:53 | 04:01 | 04:47 | 12:58 | 21:10 | 21:56 | 23:06 | 17:55 | |
| Mon, 02-Jun | 02:51 | 04:00 | 04:46 | 12:59 | 21:11 | 21:58 | 23:08 | 17:57 | |
| Tue, 03-Jun | 02:49 | 03:59 | 04:46 | 12:59 | 21:12 | 21:59 | 23:10 | 17:59 | |
| Wed, 04-Jun | 02:48 | 03:58 | 04:45 | 12:59 | 21:13 | 22:00 | 23:11 | 18:01 | |
| Thu, 05-Jun | 02:46 | 03:58 | 04:44 | 12:59 | 21:14 | 22:01 | 23:13 | 18:03 | |
| Fri, 06-Jun | 02:45 | 03:57 | 04:44 | 12:59 | 21:15 | 22:02 | 23:15 | 18:05 | |
| Sat, 07-Jun | 02:44 | 03:56 | 04:43 | 12:59 | 21:16 | 22:03 | 23:16 | 18:07 | |
| Sun, 08-Jun | 02:42 | 03:55 | 04:43 | 13:00 | 21:17 | 22:04 | 23:18 | 18:08 | |
| Mon, 09-Jun | 02:41 | 03:55 | 04:42 | 13:00 | 21:18 | 22:05 | 23:19 | 18:10 | |
| Tue, 10-Jun | 02:40 | 03:54 | 04:42 | 13:00 | 21:18 | 22:06 | 23:21 | 18:11 | |
| Wed, 11-Jun | 02:39 | 03:54 | 04:42 | 13:00 | 21:19 | 22:07 | 23:22 | 18:13 | |
| Thu, 12-Jun | 02:39 | 03:54 | 04:41 | 13:00 | 21:20 | 22:08 | 23:23 | 18:14 | |
| Fri, 13-Jun | 02:38 | 03:53 | 04:41 | 13:01 | 21:20 | 22:08 | 23:24 | 18:15 | |
| Sat, 14-Jun | 02:37 | 03:53 | 04:41 | 13:01 | 21:21 | 22:09 | 23:25 | 18:16 | |
| Sun, 15-Jun | 02:37 | 03:53 | 04:41 | 13:01 | 21:21 | 22:10 | 23:26 | 18:16 | |
| Mon, 16-Jun | 02:36 | 03:53 | 04:41 | 13:01 | 21:22 | 22:10 | 23:27 | 18:17 | |
| Tue, 17-Jun | 02:36 | 03:53 | 04:41 | 13:01 | 21:22 | 22:11 | 23:27 | 18:18 | |
| Wed, 18-Jun | 02:36 | 03:53 | 04:41 | 13:02 | 21:23 | 22:11 | 23:28 | 18:18 | |
| Thu, 19-Jun | 02:36 | 03:53 | 04:41 | 13:02 | 21:23 | 22:11 | 23:28 | 18:18 | |
| Fri, 20-Jun | 02:36 | 03:53 | 04:41 | 13:02 | 21:23 | 22:12 | 23:29 | 18:18 | |
| Sat, 21-Jun | 02:36 | 03:53 | 04:41 | 13:02 | 21:23 | 22:12 | 23:29 | 18:18 | |
| Sun, 22-Jun | 02:36 | 03:53 | 04:42 | 13:03 | 21:23 | 22:12 | 23:29 | 18:18 | |
| Mon, 23-Jun | 02:37 | 03:53 | 04:42 | 13:03 | 21:24 | 22:12 | 23:29 | 18:18 | |
| Tue, 24-Jun | 02:37 | 03:54 | 04:42 | 13:03 | 21:24 | 22:12 | 23:29 | 18:18 | |
| Wed, 25-Jun | 02:38 | 03:54 | 04:43 | 13:03 | 21:24 | 22:12 | 23:28 | 18:17 | |
| Thu, 26-Jun | 02:38 | 03:55 | 04:43 | 13:03 | 21:24 | 22:12 | 23:28 | 18:17 | |
| Fri, 27-Jun | 02:39 | 03:55 | 04:44 | 13:04 | 21:23 | 22:12 | 23:27 | 18:16 | |
| Sat, 28-Jun | 02:40 | 03:56 | 04:44 | 13:04 | 21:23 | 22:11 | 23:27 | 18:15 | |
| Sun, 29-Jun | 02:41 | 03:57 | 04:45 | 13:04 | 21:23 | 22:11 | 23:26 | 18:14 | |
| Mon, 30-Jun | 02:42 | 03:57 | 04:45 | 13:04 | 21:23 | 22:11 | 23:25 | 18:13 | |
| Tue, 01-Jul | 02:44 | 03:58 | 04:46 | 13:04 | 21:22 | 22:10 | 23:24 | 18:12 | |
| Wed, 02-Jul | 02:45 | 03:59 | 04:47 | 13:05 | 21:22 | 22:10 | 23:23 | 18:10 | |
| Thu, 03-Jul | 02:46 | 04:00 | 04:47 | 13:05 | 21:22 | 22:09 | 23:22 | 18:09 | |
| Fri, 04-Jul | 02:48 | 04:01 | 04:48 | 13:05 | 21:21 | 22:08 | 23:21 | 18:07 | |
| Sat, 05-Jul | 02:49 | 04:02 | 04:49 | 13:05 | 21:21 | 22:08 | 23:20 | 18:05 | |
| Sun, 06-Jul | 02:51 | 04:03 | 04:50 | 13:05 | 21:20 | 22:07 | 23:18 | 18:04 | |
| Mon, 07-Jul | 02:53 | 04:04 | 04:51 | 13:05 | 21:19 | 22:06 | 23:17 | 18:02 | |
| Tue, 08-Jul | 02:54 | 04:05 | 04:52 | 13:06 | 21:19 | 22:05 | 23:15 | 18:00 | |
| Wed, 09-Jul | 02:56 | 04:06 | 04:53 | 13:06 | 21:18 | 22:04 | 23:14 | 17:57 | |
| Thu, 10-Jul | 02:58 | 04:08 | 04:54 | 13:06 | 21:17 | 22:03 | 23:12 | 17:55 | |
| Fri, 11-Jul | 03:00 | 04:09 | 04:55 | 13:06 | 21:16 | 22:02 | 23:11 | 17:53 | |
| Sat, 12-Jul | 03:02 | 04:10 | 04:56 | 13:06 | 21:16 | 22:01 | 23:09 | 17:51 | |
| Sun, 13-Jul | 03:04 | 04:12 | 04:57 | 13:06 | 21:15 | 22:00 | 23:07 | 17:48 | |
| Mon, 14-Jul | 03:06 | 04:13 | 04:58 | 13:06 | 21:14 | 21:59 | 23:05 | 17:45 | |
| Tue, 15-Jul | 03:08 | 04:14 | 05:00 | 13:07 | 21:13 | 21:58 | 23:03 | 17:43 | |
| Wed, 16-Jul | 03:10 | 04:16 | 05:01 | 13:07 | 21:12 | 21:56 | 23:01 | 17:40 | |
| Thu, 17-Jul | 03:12 | 04:17 | 05:02 | 13:07 | 21:11 | 21:55 | 22:59 | 17:37 | |
| Fri, 18-Jul | 03:15 | 04:19 | 05:03 | 13:07 | 21:09 | 21:54 | 22:57 | 17:34 | |
| Sat, 19-Jul | 03:17 | 04:20 | 05:05 | 13:07 | 21:08 | 21:52 | 22:55 | 17:31 | |
| Sun, 20-Jul | 03:19 | 04:22 | 05:06 | 13:07 | 21:07 | 21:51 | 22:53 | 17:28 | |
| Mon, 21-Jul | 03:21 | 04:24 | 05:07 | 13:07 | 21:06 | 21:49 | 22:51 | 17:25 | |
| Tue, 22-Jul | 03:24 | 04:25 | 05:09 | 13:07 | 21:04 | 21:48 | 22:48 | 17:22 | |
| Wed, 23-Jul | 03:26 | 04:27 | 05:10 | 13:07 | 21:03 | 21:46 | 22:46 | 17:19 | |
| Thu, 24-Jul | 03:28 | 04:28 | 05:11 | 13:07 | 21:02 | 21:44 | 22:44 | 17:15 | |
| Fri, 25-Jul | 03:31 | 04:30 | 05:13 | 13:07 | 21:00 | 21:43 | 22:42 | 17:12 | |
| Sat, 26-Jul | 03:33 | 04:32 | 05:14 | 13:07 | 20:59 | 21:41 | 22:39 | 17:09 | |
| Sun, 27-Jul | 03:35 | 04:34 | 05:16 | 13:07 | 20:57 | 21:39 | 22:37 | 17:05 | |
| Mon, 28-Jul | 03:38 | 04:35 | 05:17 | 13:07 | 20:56 | 21:38 | 22:35 | 17:02 | |
| Tue, 29-Jul | 03:40 | 04:37 | 05:19 | 13:07 | 20:54 | 21:36 | 22:32 | 16:58 | |
| Wed, 30-Jul | 03:42 | 04:39 | 05:20 | 13:07 | 20:53 | 21:34 | 22:30 | 16:55 | |
| Thu, 31-Jul | 03:45 | 04:40 | 05:22 | 13:07 | 20:51 | 21:32 | 22:27 | 16:51 | |
| Fri, 01-Aug | 03:47 | 04:42 | 05:23 | 13:07 | 20:49 | 21:30 | 22:25 | 16:47 | |
| Sat, 02-Aug | 03:49 | 04:44 | 05:25 | 13:07 | 20:48 | 21:28 | 22:22 | 16:44 | |
| Sun, 03-Aug | 03:52 | 04:46 | 05:26 | 13:07 | 20:46 | 21:26 | 22:20 | 16:40 | |
| Mon, 04-Aug | 03:54 | 04:48 | 05:28 | 13:07 | 20:44 | 21:24 | 22:17 | 16:36 | |
| Tue, 05-Aug | 03:56 | 04:49 | 05:29 | 13:06 | 20:42 | 21:22 | 22:15 | 16:32 | |
| Wed, 06-Aug | 03:58 | 04:51 | 05:31 | 13:06 | 20:41 | 21:20 | 22:12 | 16:29 | |
| Thu, 07-Aug | 04:01 | 04:53 | 05:33 | 13:06 | 20:39 | 21:18 | 22:10 | 16:25 | |
| Fri, 08-Aug | 04:03 | 04:55 | 05:34 | 13:06 | 20:37 | 21:16 | 22:07 | 16:21 | |
| Sat, 09-Aug | 04:05 | 04:57 | 05:36 | 13:06 | 20:35 | 21:14 | 22:05 | 16:17 | |
| Sun, 10-Aug | 04:08 | 04:58 | 05:37 | 13:06 | 20:33 | 21:12 | 22:02 | 16:13 | |
| Mon, 11-Aug | 04:10 | 05:00 | 05:39 | 13:06 | 20:31 | 21:10 | 22:00 | 16:09 | |
| Tue, 12-Aug | 04:12 | 05:02 | 05:41 | 13:05 | 20:29 | 21:08 | 21:57 | 16:05 | |
| Wed, 13-Aug | 04:14 | 05:04 | 05:42 | 13:05 | 20:27 | 21:05 | 21:54 | 16:01 | |
| Thu, 14-Aug | 04:17 | 05:06 | 05:44 | 13:05 | 20:25 | 21:03 | 21:52 | 15:57 | |
| Fri, 15-Aug | 04:19 | 05:07 | 05:45 | 13:05 | 20:23 | 21:01 | 21:49 | 15:53 | |
| Sat, 16-Aug | 04:21 | 05:09 | 05:47 | 13:05 | 20:21 | 20:59 | 21:47 | 15:49 | |
| Sun, 17-Aug | 04:23 | 05:11 | 05:49 | 13:04 | 20:19 | 20:57 | 21:44 | 15:45 | |
| Mon, 18-Aug | 04:25 | 05:13 | 05:50 | 13:04 | 20:17 | 20:54 | 21:41 | 15:41 | |
| Tue, 19-Aug | 04:28 | 05:15 | 05:52 | 13:04 | 20:15 | 20:52 | 21:39 | 15:37 | |
| Wed, 20-Aug | 04:30 | 05:16 | 05:53 | 13:04 | 20:13 | 20:50 | 21:36 | 15:33 | |
Notes
- Max Height (solar noon) is when the sun is highest in the sky.
- Day length is dawn to dusk as there is enough light for walking for at least 30 minutes before sunrise and after sunset, even on an overcast day.
- At 'Light' (nautical dawn) the horizon becomes visible. At 'Dawn' (civil dawn) there is enough light to read, and drivers can switch their lights off. Finally the sun rises.
- After sunset, there is still enough light to read until 'Dusk' (civil dusk) or lighting up time for drivers. The horizon is still visible until 'Dark' (nautical dusk).
- Times will vary if there is a hill on the horizon.
Hertfordshire moonlight
Moonlight chart for walking at night.
| Night of | Sunset | Dusk | Moon Visible | Dawn | Sunrise | Phase | % Full | Max. Ht. | Night Walk | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |||
| Thu, 22-May | 20:58 | 21:42 | 03:01 | dawn | 04:12 | 04:56 | 24 % | 09:29 | |||
| Fri, 23-May | 20:59 | 21:43 | 03:14 | dawn | 04:11 | 04:55 | 14 % | 10:20 | |||
| Sat, 24-May | 21:00 | 21:45 | 03:30 | dawn | 04:10 | 04:54 | 7 % | 11:15 | |||
| Sun, 25-May | 21:02 | 21:46 | 04:08 | 04:53 | 2 % | ||||||
| Mon, 26-May | 21:03 | 21:48 | 04:07 | 04:52 | 0 % | 12:14 | |||||
| Tue, 27-May | 21:04 | 21:49 | dusk | 22:29 | 04:06 | 04:51 | 1 % | 13:18 | |||
| Wed, 28-May | 21:05 | 21:51 | dusk | 23:40 | 04:04 | 04:50 | 5 % | 14:23 | |||
| Thu, 29-May | 21:07 | 21:52 | dusk | 00:29 | 04:03 | 04:49 | 11 % | 15:28 | |||
| Fri, 30-May | 21:08 | 21:54 | dusk | 01:00 | 04:02 | 04:48 | 19 % | 16:28 | |||
| Sat, 31-May | 21:09 | 21:55 | dusk | 01:22 | 04:01 | 04:47 | 28 % | 17:22 | |||
| Sun, 01-Jun | 21:10 | 21:56 | dusk | 01:37 | 04:00 | 04:46 | 38 % | 18:10 | |||
| Mon, 02-Jun | 21:11 | 21:58 | dusk | 01:48 | 03:59 | 04:46 | 48 % | 18:55 | |||
| Tue, 03-Jun | 21:12 | 21:59 | dusk | 01:58 | 03:58 | 04:45 | 58 % | 19:36 | |||
| Wed, 04-Jun | 21:13 | 22:00 | dusk | 02:08 | 03:58 | 04:44 | 67 % | 20:16 | |||
| Thu, 05-Jun | 21:14 | 22:01 | dusk | 02:17 | 03:57 | 04:44 | 76 % | 20:55 | after dusk | ||
| Fri, 06-Jun | 21:15 | 22:02 | dusk | 02:28 | 03:56 | 04:43 | 83 % | 21:35 | after dusk | ||
| Sat, 07-Jun | 21:16 | 22:03 | dusk | 02:41 | 03:55 | 04:43 | 90 % | 22:17 | after dusk | ||
| Sun, 08-Jun | 21:17 | 22:04 | dusk | 02:59 | 03:55 | 04:42 | 95 % | 23:02 | after dusk | ||
| Mon, 09-Jun | 21:18 | 22:05 | dusk | 03:23 | 03:54 | 04:42 | 98 % | 23:50 | after dusk | ||
| Tue, 10-Jun | 21:18 | 22:06 | dusk | dawn | 03:54 | 04:42 | 100 % | 00:41 | all night | ||
| Wed, 11-Jun | 21:19 | 22:07 | 22:23 | dawn | 03:54 | 04:41 | 99 % | 01:35 | before dawn | ||
| Thu, 12-Jun | 21:20 | 22:08 | 23:11 | dawn | 03:53 | 04:41 | 97 % | 02:29 | before dawn | ||
| Fri, 13-Jun | 21:20 | 22:08 | 23:47 | dawn | 03:53 | 04:41 | 93 % | 03:23 | before dawn | ||
| Sat, 14-Jun | 21:21 | 22:09 | 00:12 | dawn | 03:53 | 04:41 | 87 % | 04:14 | before dawn | ||
| Sun, 15-Jun | 21:21 | 22:10 | 00:30 | dawn | 03:53 | 04:41 | 79 % | 05:04 | before dawn | ||
| Mon, 16-Jun | 21:22 | 22:10 | 00:44 | dawn | 03:53 | 04:41 | 70 % | 05:51 | |||
| Tue, 17-Jun | 21:22 | 22:11 | 00:56 | dawn | 03:53 | 04:41 | 60 % | 06:37 | |||
| Wed, 18-Jun | 21:23 | 22:11 | 01:08 | dawn | 03:53 | 04:41 | 48 % | 07:23 | |||
| Thu, 19-Jun | 21:23 | 22:11 | 01:20 | dawn | 03:53 | 04:41 | 37 % | 08:11 | |||
| Fri, 20-Jun | 21:23 | 22:12 | 01:34 | dawn | 03:53 | 04:41 | 26 % | 09:03 | |||
| Sat, 21-Jun | 21:23 | 22:12 | 01:52 | dawn | 03:53 | 04:42 | 17 % | 09:58 | |||
| Sun, 22-Jun | 21:23 | 22:12 | 02:17 | dawn | 03:53 | 04:42 | 9 % | 10:59 | |||
| Mon, 23-Jun | 21:24 | 22:12 | 03:54 | 04:42 | 3 % | ||||||
| Tue, 24-Jun | 21:24 | 22:12 | 03:51 | dawn | 03:54 | 04:43 | 1 % | 12:03 | |||
| Wed, 25-Jun | 21:24 | 22:12 | dusk | 22:18 | 03:55 | 04:43 | 1 % | 13:08 | |||
| Thu, 26-Jun | 21:24 | 22:12 | dusk | 22:57 | 03:55 | 04:44 | 3 % | 14:11 | |||
| Fri, 27-Jun | 21:23 | 22:12 | dusk | 23:23 | 03:56 | 04:44 | 8 % | 15:08 | |||
| Sat, 28-Jun | 21:23 | 22:11 | dusk | 23:41 | 03:57 | 04:45 | 15 % | 16:01 | |||
| Sun, 29-Jun | 21:23 | 22:11 | dusk | 23:54 | 03:57 | 04:45 | 23 % | 16:48 | |||
| Mon, 30-Jun | 21:23 | 22:11 | dusk | 00:05 | 03:58 | 04:46 | 32 % | 17:31 | |||
| Tue, 01-Jul | 21:22 | 22:10 | dusk | 00:15 | 03:59 | 04:47 | 42 % | 18:12 | |||
| Wed, 02-Jul | 21:22 | 22:10 | dusk | 00:24 | 04:00 | 04:47 | 52 % | 18:52 | |||
| Thu, 03-Jul | 21:22 | 22:09 | dusk | 00:35 | 04:01 | 04:48 | 61 % | 19:32 | |||
| Fri, 04-Jul | 21:21 | 22:08 | dusk | 00:47 | 04:02 | 04:49 | 70 % | 20:13 | |||
| Sat, 05-Jul | 21:21 | 22:08 | dusk | 01:03 | 04:03 | 04:50 | 78 % | 20:57 | after dusk | ||
| Sun, 06-Jul | 21:20 | 22:07 | dusk | 01:24 | 04:04 | 04:51 | 85 % | 21:44 | after dusk | ||
| Mon, 07-Jul | 21:19 | 22:06 | dusk | 01:55 | 04:05 | 04:52 | 92 % | 22:34 | after dusk | ||
| Tue, 08-Jul | 21:19 | 22:05 | dusk | 02:39 | 04:06 | 04:53 | 96 % | 23:27 | after dusk | ||
| Wed, 09-Jul | 21:18 | 22:04 | dusk | 03:39 | 04:08 | 04:54 | 99 % | 00:22 | after dusk | ||
| Thu, 10-Jul | 21:17 | 22:03 | dusk | dawn | 04:09 | 04:55 | 100 % | 01:17 | all night | ||
| Fri, 11-Jul | 21:16 | 22:02 | 22:16 | dawn | 04:10 | 04:56 | 99 % | 02:10 | before dawn | ||
| Sat, 12-Jul | 21:16 | 22:01 | 22:36 | dawn | 04:12 | 04:57 | 95 % | 03:00 | before dawn | ||
| Sun, 13-Jul | 21:15 | 22:00 | 22:52 | dawn | 04:13 | 04:58 | 90 % | 03:49 | before dawn | ||
| Mon, 14-Jul | 21:14 | 21:59 | 23:04 | dawn | 04:14 | 05:00 | 82 % | 04:35 | before dawn | ||
| Tue, 15-Jul | 21:13 | 21:58 | 23:16 | dawn | 04:16 | 05:01 | 73 % | 05:22 | |||
| Wed, 16-Jul | 21:12 | 21:56 | 23:27 | dawn | 04:17 | 05:02 | 62 % | 06:09 | |||
| Thu, 17-Jul | 21:11 | 21:55 | 23:40 | dawn | 04:19 | 05:03 | 51 % | 06:58 | |||
| Fri, 18-Jul | 21:09 | 21:54 | 23:56 | dawn | 04:20 | 05:05 | 39 % | 07:50 | |||
| Sat, 19-Jul | 21:08 | 21:52 | 00:17 | dawn | 04:22 | 05:06 | 29 % | 08:47 | |||
| Sun, 20-Jul | 21:07 | 21:51 | 00:49 | dawn | 04:24 | 05:07 | 19 % | 09:48 | |||
| Mon, 21-Jul | 21:06 | 21:49 | 01:36 | dawn | 04:25 | 05:09 | 11 % | 10:52 | |||
| Tue, 22-Jul | 21:04 | 21:48 | 02:43 | dawn | 04:27 | 05:10 | 5 % | 11:55 | |||
| Wed, 23-Jul | 21:03 | 21:46 | 04:28 | 05:11 | 1 % | ||||||
| Thu, 24-Jul | 21:02 | 21:44 | 04:30 | 05:13 | 0 % | 12:54 | |||||
| Fri, 25-Jul | 21:00 | 21:43 | dusk | 21:45 | 04:32 | 05:14 | 2 % | 13:49 | |||
| Sat, 26-Jul | 20:59 | 21:41 | dusk | 22:00 | 04:34 | 05:16 | 5 % | 14:38 | |||
| Sun, 27-Jul | 20:57 | 21:39 | dusk | 22:12 | 04:35 | 05:17 | 11 % | 15:24 | |||
| Mon, 28-Jul | 20:56 | 21:38 | dusk | 22:22 | 04:37 | 05:19 | 18 % | 16:06 | |||
| Tue, 29-Jul | 20:54 | 21:36 | dusk | 22:31 | 04:39 | 05:20 | 26 % | 16:47 | |||
| Wed, 30-Jul | 20:53 | 21:34 | dusk | 22:41 | 04:40 | 05:22 | 35 % | 17:27 | |||
| Thu, 31-Jul | 20:51 | 21:32 | dusk | 22:53 | 04:42 | 05:23 | 45 % | 18:08 | |||
| Fri, 01-Aug | 20:49 | 21:30 | dusk | 23:07 | 04:44 | 05:25 | 54 % | 18:51 | |||
| Sat, 02-Aug | 20:48 | 21:28 | dusk | 23:26 | 04:46 | 05:26 | 64 % | 19:37 | |||
| Sun, 03-Aug | 20:46 | 21:26 | dusk | 23:52 | 04:48 | 05:28 | 72 % | 20:26 | |||
| Mon, 04-Aug | 20:44 | 21:24 | dusk | 00:30 | 04:49 | 05:29 | 81 % | 21:17 | after dusk | ||
| Tue, 05-Aug | 20:42 | 21:22 | dusk | 01:24 | 04:51 | 05:31 | 88 % | 22:11 | after dusk | ||
| Wed, 06-Aug | 20:41 | 21:20 | dusk | 02:32 | 04:53 | 05:33 | 94 % | 23:06 | after dusk | ||
| Thu, 07-Aug | 20:39 | 21:18 | dusk | 03:52 | 04:55 | 05:34 | 98 % | 00:01 | after dusk | ||
| Fri, 08-Aug | 20:37 | 21:16 | dusk | dawn | 04:57 | 05:36 | 100 % | 00:53 | all night | ||
| Sat, 09-Aug | 20:35 | 21:14 | dusk | dawn | 04:58 | 05:37 | 99 % | 01:43 | all night | ||
| Sun, 10-Aug | 20:33 | 21:12 | dusk | dawn | 05:00 | 05:39 | 97 % | 02:31 | all night | ||
| Mon, 11-Aug | 20:31 | 21:10 | 21:24 | dawn | 05:02 | 05:41 | 92 % | 03:19 | before dawn | ||
| Tue, 12-Aug | 20:29 | 21:08 | 21:35 | dawn | 05:04 | 05:42 | 84 % | 04:06 | before dawn | ||
| Wed, 13-Aug | 20:27 | 21:05 | 21:47 | dawn | 05:06 | 05:44 | 75 % | 04:55 | before dawn | ||
| Thu, 14-Aug | 20:25 | 21:03 | 22:02 | dawn | 05:07 | 05:45 | 64 % | 05:47 | |||
| Fri, 15-Aug | 20:23 | 21:01 | 22:22 | dawn | 05:09 | 05:47 | 53 % | 06:42 | |||
| Sat, 16-Aug | 20:21 | 20:59 | 22:49 | dawn | 05:11 | 05:49 | 42 % | 07:41 | |||
| Sun, 17-Aug | 20:19 | 20:57 | 23:30 | dawn | 05:13 | 05:50 | 31 % | 08:43 | |||
| Mon, 18-Aug | 20:17 | 20:54 | 00:28 | dawn | 05:15 | 05:52 | 21 % | 09:44 | |||
| Tue, 19-Aug | 20:15 | 20:52 | 01:44 | dawn | 05:16 | 05:53 | 12 % | 10:44 | |||
| Wed, 20-Aug | 20:13 | 20:50 | 03:08 | dawn | 05:18 | 05:55 | 6 % | 11:39 | |||
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
- Sunlight is ~ 1,000,000 times brighter than moonlight.
- Of course, you need a cloudless night as well!