Snowdon Walk

A beginners guide to safely climbing the highest mountain in England and Wales.

Hiking weather forecast

Snowdonia hourly weather (Visual Crossing)

Sunset: 16:02. Dusk: 16:44. Dark: 17:29. Moon 40% (01:34 to dawn)

Updated: Mon, 23-Dec 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% 100% 0% 100% 100% 100% 0% 0% 100% 97% 97% 97%
Tue, 24 Dec 🌫 19% 🌫 0% 🌫 0% 🌫 0% 🌫 0% 🌫 0% 🌫 0% 🌫 0% 🌫 0% 🌫 0% 🌫 0% 🌫 0% 0% 🌫 0% 🌫 0% 🌫 0%
Wed, 25 Dec 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Thu, 26 Dec 🌫 0% 🌫 0% 🌫 0% 🌫 0% 🌫 0% 0% 0% 0% 0% 0% 🌫 0% 🌫 0% 🌫 0% 🌫 0% 🌫 0% 🌫 0%
Fri, 27 Dec 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 3% 3% 3%
Sat, 28 Dec 🌫 0% 7% 7% 7% 7% 7% 7% 23% 23% 23% 23% 23% 23% 0% 0% 0%
Sun, 29 Dec 10% 3% 3% 3% 3% 3% 3% 3% 3% 3% 3% 3% 3% 10% 10% 10%
Mon, 30 Dec 13% 23% 23% 23% 23% 23% 23% 23% 23% 23% 23% 23% 23% 48% 48% 48%
Tue, 31 Dec 48% 42% 42% 42% 42% 42% 42% 55% 55% 55% 55% 55% 55% 71% 71% 71%
Wed, 01 Jan 65% 🌫 39% 🌫 39% 🌫 39% 39% 39% 39% 48% 48% 48% 48% 48% 48% 55% 55% 55%
Thu, 02 Jan 45% 48% 48% 48% 48% 48% 48% 42% 42% 42% 42% 42% 42% 48% 48% 48%
Fri, 03 Jan 🌫 32% 48% 48% 48% 48% 48% 48% 65% 65% 65% 65% 65% 65% 58% 58% 58%
Sat, 04 Jan 45% 36% 36% 36% 36% 36% 36% 36% 36% 36% 36% 36% 36% 52% 52% 52%
Sun, 05 Jan 45% 29% 29% 🌫 29% 🌫 29% 🌫 29% 🌫 29% 55% 55% 55% 55% 55% 55% 61% 61% 61%
Mon, 06 Jan 39% 32% 32% 32% 32% 32% 32% 45% 45% 45% 45% 45% 45% 48% 48% 48%

Percentages are the chance of rain.

Weather data by Visual Crossing

Snowdonia hourly weather (Open Meteo)

Sunset: 16:02. Dusk: 16:44. Dark: 17:29. Moon 40% (01:34 to dawn)

Updated: Mon, 23-Dec at 17:37

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 100% 98% 98% 97% 92%
Tue, 24 Dec 61% 47% 26% 12% 🌫 10% 🌫 15% 🌫 18% 18% 🌫 16% 🌫 14% 🌫 10% 🌫 6% 2% 🌫 0% 🌫 0% 🌫 0%
Wed, 25 Dec 10% 8% 6% 4% 5% 7% 8% 8% 7% 6% 5% 3% 2% 1% 0% 0%
Thu, 26 Dec 14% 15% 16% 16% 16% 15% 16% 22% 29% 33% 30% 22% 16% 12% 10% 8%
Fri, 27 Dec 4% 5% 7% 8% 8% 7% 8% 12% 18% 22% 22% 20% 18% 15% 12% 12%
Sat, 28 Dec 55% 56% 54% 53% 52% 50% 49% 48% 48% 47% 45% 42% 39% 36% 34% 33%
Sun, 29 Dec 29% 33% 39% 43% 44% 44% 43% 43% 42% 42% 42% 41% 41% 41% 40% 40%
Mon, 30 Dec 55% 56% 57% 58% 59% 60% 61% 63% 64% 66% 67% 68% 69% 69% 68% 68%
Tue, 31 Dec 71% 71% 71% 70% 69% 68% 67% 65% 63% 61% 59% 56% 55% 55% 56% 57%
Wed, 01 Jan 49% 49% 49% 50% 51% 52% 53% 54% 56% 57% 58% 59% 59% 58% 56% 54%
Thu, 02 Jan 43% 42% 42% 41% 41% 40% 41% 43% 45% 47% 49% 52% 53% 53% 52% 51%
Fri, 03 Jan 43% 43% 42% 42% 42% 42% 43% 45% 47% 50% 53% 55% 57% 57% 57% 56%
Sat, 04 Jan 47% 46% 46% 46% 46% 47% 47% 48% 48% 49% 50% 51% 51% 51% 50% 50%
Sun, 05 Jan 51% 50% 49% 48% 47% 46% 45% 45% 45% 45% 45% 45% 45% 43% 41% 39%
Mon, 06 Jan 31% 32% 34% 36% 38% 39% 41% 42% 44% 45% 46% 47% 47% 46% 45% 43%
Tue, 07 Jan 26% 26% 27% 27% 27% 28% 29% 31% 34% 36% 38% 40% 42% 44% 45% 46%

Percentages are the chance of rain.

Weather data by Open-Meteo

Snowdonia hourly weather (Met Office)

Sunset: 16:02. Dusk: 16:44. Dark: 17:29. Moon 40% (01:34 to dawn)

Updated: Mon, 23-Dec at 17:00

06 09 12 15 18 21
Today 38% 60%
Tue, 24 Dec 🌫 27% 🌫 23% 14% 🌫 16% 🌫 16% 14%
Wed, 25 Dec 12% 13% 10% 8% 6% 6%
Thu, 26 Dec 8% 10% 11% 11% 8% 10%
Fri, 27 Dec 13% 13% 9% 13% 12% 10%
Sat, 28 Dec 43% 16% 6% 5% 8% 11%
Sun, 29 Dec 12% 13% 7% 10% 11% 11%
Mon, 30 Dec 16% 16% 48% 20%

Percentages are the chance of rain.

Weather data by Met Office

Regional weather (Met Office)

Sunset: 16:02. Dusk: 16:44. Dark: 17:29. Moon 40% (01:34 to dawn)

Updated: Mon, 23-Dec at 17:38

Wales

Cloudier and milder over the coming days.

  • A cloudy and damp evening with outbreaks of rain and drizzle across the country, gradually easing during the early hours
  • A milder and frost free night under the cloudy skies
  • Minimum Temperature 5C

Tuesday:

  • Remaining largely cloudy and murky on Christmas Eve with grey skies, hill fog and drizzly outbreaks, mainly over the highest ground in the west
  • Very mild with light winds
  • Maximum Temperature 12C

Outlook for Wednesday to Friday:

  • Staying mild over the Christmas period
  • Generally cloudy and dry, although some brighter breaks are possible at times

UK Day 6-7 and week 2

  • The start of this period will be characterised by mild, cloudy conditions for most, with some drizzle in places, and more persistent rain across northwest Scotland, which will probably start to spread southeast
  • Many other areas will be predominantly dry but rather cloudy, with the best cloud breaks likely to be found across parts of eastern Scotland and Northeastern England
  • By the turn of the year, it looks more probable that colder, more unsettled conditions will likely make at least some ingress into northern and central areas, bringing a risk of some impacts from rain, wind, and maybe even ice, sleet and snow
  • Widely mild at first, but temperatures probably return to nearer normal by early January
  • Throughout, any clearer spells overnight may lead to localised frost and fog

UK Week 3 and 4

  • Confidence in this period is fairly low, but overall, slowly-evolving weather patterns are more favoured
  • Continuing from the previous period, there remains a slightly reduced chance compared with normal of wet and windy spells, with a slightly greater potential for colder episodes during the first half of January
  • While drier than average conditions are likely for many areas, some precipitation is still expected, which could lead to wintry hazards at times
  • Temperatures are likely to be close to or a little above normal overall, but this could be made up of a mix of milder and colder interludes

Weather data by Met Office

Snowdonia mountain weather forecast (Met Office)

Updated: Mon, 23-Dec at 03:37

Specialist mountain forecast: MWIS

Today
Mon, 23-Dec

A bright start. Low cloud with patchy rain and summit snow arriving in afternoon. Lighter winds than of late.

A bright start but cloud will increase during the morning. Outbreaks of light rain or drizzle will spread east during the afternoon. This preceded by a little snow above 700m before much milder air arrives.

Low risk Gales Severe Chill Effect Heavy Persistent Rain
Low risk Gales Severe Chill Effect Heavy Persistent Rain
Low risk Gales Severe Chill Effect Heavy Persistent Rain
High risk Poor Visibility
Chance of Cloud free tops 60% in the morning becoming 10% or less in the afternoon.
Ground conditions Please see - https://yrwyddfa.live/
Visibility Very good visibility in the morning with broken cloud around the highest ground. Deteriorating during the afternoon rain or snow with cloud becoming extensive on the tops at first before lowering to 300 or 400m, then to lower slopes by evening in the south and west.
Confidence High for bright conditions to start Monday then a transition to mild, misty and often drizzly conditions for Christmas week. Some uncertainty in exact height and extent of low cloud.
View Navigation will become increasingly tricky in the afternoon as the cloud base lowers.

Conditions on the tops at 900m

Time Weather Rain Temp Wind Freezing
06:00 Cloudy 10% -0 34 700m
09:00 Cloudy 20% -0 25 800m
12:00 Light snow 30% 0 19 900m
15:00 Heavy Rain 60% 2 28 2500m
18:00 Light rain 80% 5 21 2400m
21:00 Light rain 70% 6 20 2500m
Tue, 24-Dec

A very mild and misty Christmas Eve. Cloud and fog will be extensive at height with occasional light rain or drizzle. The far northeast of Snowdonia favouring the drier conditions.

Ice Well above summits.
Visibility Very poor visibility even at modest elevations with extensive cloud above 200 or 300m. Cloud perhaps lifting slightly at times in the northeast.
Wind Southwest 15 to 20mph gusts 30mph.
Temp (tops) Plus 7C. at 800m
Wed, 25-Dec

A mild and cloudy Christmas Day with a little light rain or drizzle at times. Some brighter interludes possible in the east in the afternoon. Strong southwest winds on the tops.

Thu, 26-Dec

Mainly dry and rather cloudy but a few bright intervals are possible. Lighter southwest winds. Mild.

Fri, 27-Dec

Similar to Thursday. Mild and rather cloudy southwesterly airflow. Mainly dry, perhaps the odd spot of rain.

Weather data by Met Office

Snowdonia Air Quality (Pollen and UV)

Updated: Mon, 23-Dec at 17:37

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   air q   air q   air q   air q   air q  
Tue, 24 Dec air q   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  
Wed, 25 Dec 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 UV air q   air q   air q   air q   air q   air q   air q   air q  
Thu, 26 Dec air q   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  

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

Snowdonia Visibility

Updated: Mon, 23-Dec at 17:37

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 0km 0km 0km 0km 0km
Tue, 24 Dec 0km 0km 0km 0km 0km 0km 0km 0km 0km 0km 0km 0km 0km 0km 0km 0km
Wed, 25 Dec 2km 2km 4km 3km 5km 50km 9km 5km 50km 9km 4km 4km 2km 2km 3km 9km
Thu, 26 Dec 7km 7km 6km 5km 4km 4km 4km 4km 4km 5km 5km 6km 5km 5km 5km 5km
Fri, 27 Dec 6km 8km 10km 12km 13km 14km 14km 12km 10km 7km 7km 6km 5km 5km 5km 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

Snowdonia daylight

Date Light Dawn Sunrise Max Ht. Sunset Dusk Dark Day Length
Mon, 23-Dec 07:00 07:45 08:27 12:14 16:02 16:44 17:29 08:59
Tue, 24-Dec 07:00 07:45 08:27 12:15 16:03 16:45 17:30 08:59
Wed, 25-Dec 07:01 07:45 08:28 12:15 16:03 16:45 17:30 09:00
Thu, 26-Dec 07:01 07:46 08:28 12:16 16:04 16:46 17:31 09:00
Fri, 27-Dec 07:01 07:46 08:28 12:16 16:05 16:47 17:32 09:01
Sat, 28-Dec 07:01 07:46 08:28 12:17 16:06 16:48 17:33 09:01
Sun, 29-Dec 07:01 07:46 08:28 12:17 16:07 16:49 17:33 09:02
Mon, 30-Dec 07:02 07:46 08:28 12:18 16:08 16:50 17:34 09:03
Tue, 31-Dec 07:02 07:46 08:28 12:18 16:09 16:51 17:35 09:04
Wed, 01-Jan 07:02 07:46 08:28 12:19 16:10 16:52 17:36 09:05
Thu, 02-Jan 07:02 07:46 08:28 12:19 16:11 16:53 17:37 09:06
Fri, 03-Jan 07:02 07:46 08:28 12:20 16:12 16:54 17:38 09:07
Sat, 04-Jan 07:01 07:46 08:27 12:20 16:13 16:55 17:39 09:09
Sun, 05-Jan 07:01 07:45 08:27 12:21 16:15 16:56 17:40 09:10
Mon, 06-Jan 07:01 07:45 08:26 12:21 16:16 16:57 17:41 09:12
Tue, 07-Jan 07:01 07:45 08:26 12:21 16:17 16:58 17:43 09:13
Wed, 08-Jan 07:00 07:44 08:25 12:22 16:19 17:00 17:44 09:15
Thu, 09-Jan 07:00 07:44 08:25 12:22 16:20 17:01 17:45 09:17
Fri, 10-Jan 07:00 07:43 08:24 12:23 16:22 17:02 17:46 09:19
Sat, 11-Jan 06:59 07:43 08:23 12:23 16:23 17:04 17:48 09:20
Sun, 12-Jan 06:59 07:42 08:23 12:23 16:25 17:05 17:49 09:22
Mon, 13-Jan 06:58 07:42 08:22 12:24 16:26 17:07 17:50 09:25
Tue, 14-Jan 06:57 07:41 08:21 12:24 16:28 17:08 17:52 09:27
Wed, 15-Jan 06:57 07:40 08:20 12:25 16:29 17:10 17:53 09:29
Thu, 16-Jan 06:56 07:39 08:19 12:25 16:31 17:11 17:54 09:31
Fri, 17-Jan 06:55 07:38 08:18 12:25 16:33 17:13 17:56 09:34
Sat, 18-Jan 06:54 07:37 08:17 12:26 16:34 17:14 17:57 09:36
Sun, 19-Jan 06:54 07:37 08:16 12:26 16:36 17:16 17:59 09:39
Mon, 20-Jan 06:53 07:36 08:15 12:26 16:38 17:17 18:00 09:41
Tue, 21-Jan 06:52 07:34 08:14 12:26 16:40 17:19 18:02 09:44
Wed, 22-Jan 06:51 07:33 08:12 12:27 16:42 17:21 18:03 09:47
Thu, 23-Jan 06:50 07:32 08:11 12:27 16:43 17:22 18:05 09:50
Fri, 24-Jan 06:49 07:31 08:10 12:27 16:45 17:24 18:06 09:52
Sat, 25-Jan 06:48 07:30 08:08 12:27 16:47 17:26 18:08 09:55
Sun, 26-Jan 06:46 07:29 08:07 12:28 16:49 17:27 18:09 09:58
Mon, 27-Jan 06:45 07:27 08:06 12:28 16:51 17:29 18:11 10:01
Tue, 28-Jan 06:44 07:26 08:04 12:28 16:53 17:31 18:13 10:04
Wed, 29-Jan 06:43 07:25 08:03 12:28 16:55 17:33 18:14 10:07
Thu, 30-Jan 06:41 07:23 08:01 12:28 16:56 17:34 18:16 10:11
Fri, 31-Jan 06:40 07:22 07:59 12:29 16:58 17:36 18:18 10:14
Sat, 01-Feb 06:39 07:20 07:58 12:29 17:00 17:38 18:19 10:17
Sun, 02-Feb 06:37 07:19 07:56 12:29 17:02 17:40 18:21 10:20
Mon, 03-Feb 06:36 07:17 07:54 12:29 17:04 17:41 18:23 10:24
Tue, 04-Feb 06:34 07:16 07:53 12:29 17:06 17:43 18:24 10:27
Wed, 05-Feb 06:33 07:14 07:51 12:29 17:08 17:45 18:26 10:30
Thu, 06-Feb 06:31 07:12 07:49 12:29 17:10 17:47 18:28 10:34
Fri, 07-Feb 06:30 07:11 07:47 12:29 17:12 17:49 18:29 10:37
Sat, 08-Feb 06:28 07:09 07:45 12:29 17:14 17:50 18:31 10:41
Sun, 09-Feb 06:26 07:07 07:44 12:29 17:16 17:52 18:33 10:44
Mon, 10-Feb 06:25 07:05 07:42 12:29 17:18 17:54 18:35 10:48
Tue, 11-Feb 06:23 07:04 07:40 12:29 17:20 17:56 18:36 10:52
Wed, 12-Feb 06:21 07:02 07:38 12:29 17:21 17:58 18:38 10:55
Thu, 13-Feb 06:19 07:00 07:36 12:29 17:23 17:59 18:40 10:59
Fri, 14-Feb 06:18 06:58 07:34 12:29 17:25 18:01 18:42 11:03
Sat, 15-Feb 06:16 06:56 07:32 12:29 17:27 18:03 18:43 11:06
Sun, 16-Feb 06:14 06:54 07:30 12:29 17:29 18:05 18:45 11:10
Mon, 17-Feb 06:12 06:52 07:28 12:29 17:31 18:07 18:47 11:14
Tue, 18-Feb 06:10 06:50 07:26 12:29 17:33 18:09 18:49 11:18
Wed, 19-Feb 06:08 06:48 07:24 12:29 17:35 18:10 18:50 11:22
Thu, 20-Feb 06:06 06:46 07:21 12:29 17:37 18:12 18:52 11:25
Fri, 21-Feb 06:04 06:44 07:19 12:29 17:39 18:14 18:54 11:29
Sat, 22-Feb 06:02 06:42 07:17 12:28 17:41 18:16 18:56 11:33
Sun, 23-Feb 06:00 06:40 07:15 12:28 17:43 18:18 18:58 11:37
Mon, 24-Feb 05:58 06:38 07:13 12:28 17:45 18:19 18:59 11:41
Tue, 25-Feb 05:56 06:36 07:11 12:28 17:46 18:21 19:01 11:45
Wed, 26-Feb 05:54 06:34 07:08 12:28 17:48 18:23 19:03 11:49
Thu, 27-Feb 05:52 06:31 07:06 12:28 17:50 18:25 19:05 11:53
Fri, 28-Feb 05:49 06:29 07:04 12:28 17:52 18:27 19:07 11:57
Sat, 01-Mar 05:47 06:27 07:02 12:27 17:54 18:29 19:08 12:01
Sun, 02-Mar 05:45 06:25 06:59 12:27 17:56 18:30 19:10 12:05
Mon, 03-Mar 05:43 06:23 06:57 12:27 17:58 18:32 19:12 12:09
Tue, 04-Mar 05:41 06:20 06:55 12:27 18:00 18:34 19:14 12:13
Wed, 05-Mar 05:38 06:18 06:53 12:26 18:01 18:36 19:16 12:17
Thu, 06-Mar 05:36 06:16 06:50 12:26 18:03 18:38 19:18 12:21
Fri, 07-Mar 05:34 06:14 06:48 12:26 18:05 18:40 19:19 12:25
Sat, 08-Mar 05:31 06:11 06:46 12:26 18:07 18:41 19:21 12:30
Sun, 09-Mar 05:29 06:09 06:43 12:26 18:09 18:43 19:23 12:34
Mon, 10-Mar 05:27 06:07 06:41 12:25 18:11 18:45 19:25 12:38
Tue, 11-Mar 05:24 06:04 06:39 12:25 18:12 18:47 19:27 12:42
Wed, 12-Mar 05:22 06:02 06:36 12:25 18:14 18:49 19:29 12:46
Thu, 13-Mar 05:20 06:00 06:34 12:24 18:16 18:50 19:31 12:50
Fri, 14-Mar 05:17 05:57 06:31 12:24 18:18 18:52 19:33 12:55
Sat, 15-Mar 05:15 05:55 06:29 12:24 18:20 18:54 19:34 12:59
Sun, 16-Mar 05:12 05:52 06:27 12:24 18:22 18:56 19:36 13:03
Mon, 17-Mar 05:10 05:50 06:24 12:23 18:23 18:58 19:38 13:07
Tue, 18-Mar 05:07 05:48 06:22 12:23 18:25 19:00 19:40 13:11
Wed, 19-Mar 05:05 05:45 06:20 12:23 18:27 19:01 19:42 13:16
Thu, 20-Mar 05:02 05:43 06:17 12:22 18:29 19:03 19:44 13:20
Fri, 21-Mar 05:00 05:40 06:15 12:22 18:31 19:05 19:46 13:24
Sat, 22-Mar 04:57 05:38 06:12 12:22 18:32 19:07 19:48 13:28
Sun, 23-Mar 04:55 05:36 06:10 12:22 18:34 19:09 19:50 13:33
Mon, 24-Mar 04:52 05:33 06:08 12:21 18:36 19:11 19:52 13:37
Tue, 25-Mar 04:49 05:31 06:05 12:21 18:38 19:12 19:54 13:41
Wed, 26-Mar 04:47 05:28 06:03 12:21 18:39 19:14 19:56 13:45
Thu, 27-Mar 04:44 05:26 06:01 12:20 18:41 19:16 19:58 13:50
Fri, 28-Mar 04:42 05:23 05:58 12:20 18:43 19:18 20:00 13:54
Sat, 29-Mar 04:39 05:21 05:56 12:20 18:45 19:20 20:02 13:58
Sun, 30-Mar 05:36 06:18 06:53 13:19 19:47 20:22 21:04 14:03
Mon, 31-Mar 05:34 06:16 06:51 13:19 19:48 20:24 21:06 14:07
Tue, 01-Apr 05:31 06:14 06:49 13:19 19:50 20:25 21:08 14:11
Wed, 02-Apr 05:29 06:11 06:46 13:19 19:52 20:27 21:10 14:16
Thu, 03-Apr 05:26 06:09 06:44 13:18 19:54 20:29 21:12 14:20
Fri, 04-Apr 05:23 06:06 06:42 13:18 19:56 20:31 21:14 14:24
Sat, 05-Apr 05:21 06:04 06:39 13:18 19:57 20:33 21:16 14:29
Sun, 06-Apr 05:18 06:01 06:37 13:17 19:59 20:35 21:19 14:33
Mon, 07-Apr 05:15 05:59 06:35 13:17 20:01 20:37 21:21 14:37
Tue, 08-Apr 05:12 05:56 06:32 13:17 20:03 20:39 21:23 14:42
Wed, 09-Apr 05:10 05:54 06:30 13:17 20:04 20:41 21:25 14:46
Thu, 10-Apr 05:07 05:52 06:28 13:16 20:06 20:42 21:27 14:50
Fri, 11-Apr 05:04 05:49 06:25 13:16 20:08 20:44 21:29 14:55
Sat, 12-Apr 05:02 05:47 06:23 13:16 20:10 20:46 21:32 14:59
Sun, 13-Apr 04:59 05:44 06:21 13:16 20:12 20:48 21:34 15:04
Mon, 14-Apr 04:56 05:42 06:18 13:15 20:13 20:50 21:36 15:08
Tue, 15-Apr 04:53 05:39 06:16 13:15 20:15 20:52 21:38 15:12
Wed, 16-Apr 04:51 05:37 06:14 13:15 20:17 20:54 21:41 15:17
Thu, 17-Apr 04:48 05:35 06:12 13:15 20:19 20:56 21:43 15:21
Fri, 18-Apr 04:45 05:32 06:09 13:14 20:20 20:58 21:45 15:25
Sat, 19-Apr 04:43 05:30 06:07 13:14 20:22 21:00 21:48 15:30
Sun, 20-Apr 04:40 05:27 06:05 13:14 20:24 21:02 21:50 15:34
Mon, 21-Apr 04:37 05:25 06:03 13:14 20:26 21:04 21:52 15:38
Tue, 22-Apr 04:34 05:23 06:01 13:14 20:28 21:06 21:55 15:43
Wed, 23-Apr 04:32 05:20 05:59 13:13 20:29 21:08 21:57 15:47
Thu, 24-Apr 04:29 05:18 05:56 13:13 20:31 21:10 21:59 15:51
Fri, 25-Apr 04:26 05:16 05:54 13:13 20:33 21:12 22:02 15:56
Sat, 26-Apr 04:23 05:13 05:52 13:13 20:35 21:14 22:04 16:00
Sun, 27-Apr 04:21 05:11 05:50 13:13 20:36 21:16 22:07 16:04
Mon, 28-Apr 04:18 05:09 05:48 13:13 20:38 21:18 22:09 16:08
Tue, 29-Apr 04:15 05:07 05:46 13:12 20:40 21:20 22:12 16:13
Wed, 30-Apr 04:12 05:04 05:44 13:12 20:42 21:22 22:14 16:17
Thu, 01-May 04:10 05:02 05:42 13:12 20:43 21:24 22:17 16:21
Fri, 02-May 04:07 05:00 05:40 13:12 20:45 21:26 22:19 16:25
Sat, 03-May 04:04 04:58 05:38 13:12 20:47 21:28 22:22 16:29
Sun, 04-May 04:01 04:56 05:36 13:12 20:49 21:30 22:24 16:34
Mon, 05-May 03:59 04:53 05:34 13:12 20:50 21:32 22:27 16:38
Tue, 06-May 03:56 04:51 05:32 13:12 20:52 21:34 22:29 16:42
Wed, 07-May 03:53 04:49 05:31 13:12 20:54 21:36 22:32 16:46
Thu, 08-May 03:51 04:47 05:29 13:12 20:55 21:37 22:35 16:50
Fri, 09-May 03:48 04:45 05:27 13:12 20:57 21:39 22:37 16:54
Sat, 10-May 03:45 04:43 05:25 13:11 20:59 21:41 22:40 16:58
Sun, 11-May 03:43 04:41 05:24 13:11 21:00 21:43 22:42 17:02
Mon, 12-May 03:40 04:39 05:22 13:11 21:02 21:45 22:45 17:06
Tue, 13-May 03:37 04:37 05:20 13:11 21:04 21:47 22:48 17:10
Wed, 14-May 03:35 04:35 05:19 13:11 21:05 21:49 22:50 17:13
Thu, 15-May 03:32 04:33 05:17 13:11 21:07 21:51 22:53 17:17
Fri, 16-May 03:29 04:31 05:15 13:11 21:09 21:53 22:56 17:21
Sat, 17-May 03:27 04:30 05:14 13:11 21:10 21:55 22:58 17:25
Sun, 18-May 03:24 04:28 05:12 13:12 21:12 21:57 23:01 17:28
Mon, 19-May 03:22 04:26 05:11 13:12 21:13 21:58 23:03 17:32
Tue, 20-May 03:19 04:24 05:10 13:12 21:15 22:00 23:06 17:35
Wed, 21-May 03:17 04:23 05:08 13:12 21:16 22:02 23:09 17:39
Thu, 22-May 03:14 04:21 05:07 13:12 21:18 22:04 23:11 17:42
Fri, 23-May 03:12 04:20 05:06 13:12 21:19 22:05 23:14 17:45
Sat, 24-May 03:09 04:18 05:04 13:12 21:21 22:07 23:17 17:49
Sun, 25-May 03:07 04:16 05:03 13:12 21:22 22:09 23:19 17:52
Mon, 26-May 03:05 04:15 05:02 13:12 21:23 22:10 23:22 17:55
Tue, 27-May 03:02 04:14 05:01 13:12 21:25 22:12 23:24 17:58
Wed, 28-May 03:00 04:12 05:00 13:12 21:26 22:14 23:27 18:01
Thu, 29-May 02:58 04:11 04:59 13:13 21:27 22:15 23:29 18:04
Fri, 30-May 02:56 04:10 04:58 13:13 21:28 22:17 23:31 18:06
Sat, 31-May 02:54 04:09 04:57 13:13 21:30 22:18 23:34 18:09
Sun, 01-Jun 02:52 04:07 04:56 13:13 21:31 22:19 23:36 18:12
Mon, 02-Jun 02:50 04:06 04:55 13:13 21:32 22:21 23:38 18:14
Tue, 03-Jun 02:48 04:05 04:54 13:13 21:33 22:22 23:41 18:16
Wed, 04-Jun 02:46 04:04 04:54 13:13 21:34 22:23 23:43 18:19
Thu, 05-Jun 02:44 04:03 04:53 13:14 21:35 22:25 23:45 18:21
Fri, 06-Jun 02:42 04:03 04:52 13:14 21:36 22:26 23:47 18:23
Sat, 07-Jun 02:41 04:02 04:52 13:14 21:37 22:27 23:49 18:25
Sun, 08-Jun 02:39 04:01 04:51 13:14 21:38 22:28 23:51 18:26
Mon, 09-Jun 02:38 04:01 04:51 13:14 21:39 22:29 23:52 18:28
Tue, 10-Jun 02:36 04:00 04:50 13:15 21:39 22:30 23:54 18:29
Wed, 11-Jun 02:35 03:59 04:50 13:15 21:40 22:31 23:56 18:31
Thu, 12-Jun 02:34 03:59 04:50 13:15 21:41 22:32 23:57 18:32
Fri, 13-Jun 02:33 03:59 04:49 13:15 21:41 22:32 23:58 18:33
Sat, 14-Jun 02:32 03:58 04:49 13:15 21:42 22:33 00:00 18:34
Sun, 15-Jun 02:31 03:58 04:49 13:16 21:42 22:34 00:01 18:35
Mon, 16-Jun 02:31 03:58 04:49 13:16 21:43 22:34 00:02 18:36
Tue, 17-Jun 02:30 03:58 04:49 13:16 21:43 22:35 00:02 18:36
Wed, 18-Jun 02:30 03:58 04:49 13:16 21:44 22:35 00:03 18:37
Thu, 19-Jun 02:30 03:58 04:49 13:17 21:44 22:35 00:03 18:37
Fri, 20-Jun 02:30 03:58 04:49 13:17 21:44 22:36 00:04 18:37

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.

Snowdonia moonlight

Moonlight chart for walking at night.

Night of Sunset Dusk Moon Visible Dawn Sunrise Phase % Full Max. Ht. Night Walk
Mon, 23-Dec 16:02 16:44 01:34 dawn 07:45 08:27 40 % 07:05
Tue, 24-Dec 16:03 16:45 02:46 dawn 07:45 08:28 31 % 07:45
Wed, 25-Dec 16:03 16:45 04:01 dawn 07:46 08:28 23 % 08:28
Thu, 26-Dec 16:04 16:46 05:18 dawn 07:46 08:28 15 % 09:14
Fri, 27-Dec 16:05 16:47 06:36 dawn 07:46 08:28 9 % 10:05
Sat, 28-Dec 16:06 16:48 07:46 08:28 4 % 10:59
Sun, 29-Dec 16:07 16:49 07:46 08:28 1 % 11:55
Mon, 30-Dec 16:08 16:50 07:46 08:28 0 %
Tue, 31-Dec 16:09 16:51 07:46 08:28 1 % 12:53
Wed, 01-Jan 16:10 16:52 dusk 17:37 07:46 08:28 5 % 13:49
Thu, 02-Jan 16:11 16:53 dusk 19:05 07:46 08:28 11 % 14:43
Fri, 03-Jan 16:12 16:54 dusk 20:34 07:46 08:27 19 % 15:34
Sat, 04-Jan 16:13 16:55 dusk 22:01 07:45 08:27 28 % 16:22
Sun, 05-Jan 16:15 16:56 dusk 23:27 07:45 08:26 39 % 17:09
Mon, 06-Jan 16:16 16:57 dusk 00:53 07:45 08:26 50 % 17:56
Tue, 07-Jan 16:17 16:58 dusk 02:22 07:44 08:25 61 % 18:45
Wed, 08-Jan 16:19 17:00 dusk 03:53 07:44 08:25 72 % 19:37
Thu, 09-Jan 16:20 17:01 dusk 05:25 07:43 08:24 82 % 20:32 after dusk
Fri, 10-Jan 16:22 17:02 dusk 06:49 07:43 08:23 90 % 21:32 after dusk
Sat, 11-Jan 16:23 17:04 dusk dawn 07:42 08:23 95 % 22:33 all night
Sun, 12-Jan 16:25 17:05 dusk dawn 07:42 08:22 99 % 23:34 all night
Mon, 13-Jan 16:26 17:07 dusk dawn 07:41 08:21 100 % 00:32 all night
Tue, 14-Jan 16:28 17:08 dusk dawn 07:40 08:20 99 % 01:26 all night
Wed, 15-Jan 16:29 17:10 18:15 dawn 07:39 08:19 95 % 02:15 before dawn
Thu, 16-Jan 16:31 17:11 19:35 dawn 07:38 08:18 90 % 03:00 before dawn
Fri, 17-Jan 16:33 17:13 20:52 dawn 07:37 08:17 84 % 03:41 before dawn
Sat, 18-Jan 16:34 17:14 22:05 dawn 07:37 08:16 76 % 04:21 before dawn
Sun, 19-Jan 16:36 17:16 23:17 dawn 07:36 08:15 67 % 05:00
Mon, 20-Jan 16:38 17:17 00:29 dawn 07:34 08:14 58 % 05:40
Tue, 21-Jan 16:40 17:19 01:43 dawn 07:33 08:12 49 % 06:22
Wed, 22-Jan 16:42 17:21 02:59 dawn 07:32 08:11 39 % 07:06
Thu, 23-Jan 16:43 17:22 04:16 dawn 07:31 08:10 30 % 07:54
Fri, 24-Jan 16:45 17:24 05:32 dawn 07:30 08:08 22 % 08:46
Sat, 25-Jan 16:47 17:26 06:39 dawn 07:29 08:07 14 % 09:41
Sun, 26-Jan 16:49 17:27 07:27 08:06 8 % 10:39
Mon, 27-Jan 16:51 17:29 07:26 08:04 3 % 11:37
Tue, 28-Jan 16:53 17:31 07:25 08:03 0 %
Wed, 29-Jan 16:55 17:33 07:23 08:01 0 % 12:32
Thu, 30-Jan 16:56 17:34 dusk 18:12 07:22 07:59 3 % 13:26
Fri, 31-Jan 16:58 17:36 dusk 19:42 07:20 07:58 8 % 14:16
Sat, 01-Feb 17:00 17:38 dusk 21:11 07:19 07:56 15 % 15:05
Sun, 02-Feb 17:02 17:40 dusk 22:39 07:17 07:54 25 % 15:54
Mon, 03-Feb 17:04 17:41 dusk 00:09 07:16 07:53 35 % 16:43
Tue, 04-Feb 17:06 17:43 dusk 01:40 07:14 07:51 46 % 17:34
Wed, 05-Feb 17:08 17:45 dusk 03:11 07:12 07:49 58 % 18:28
Thu, 06-Feb 17:10 17:47 dusk 04:37 07:11 07:47 68 % 19:25
Fri, 07-Feb 17:12 17:49 dusk 05:50 07:09 07:45 78 % 20:24 after dusk
Sat, 08-Feb 17:14 17:50 dusk 06:44 07:07 07:44 86 % 21:25 after dusk
Sun, 09-Feb 17:16 17:52 dusk dawn 07:05 07:42 93 % 22:23 all night
Mon, 10-Feb 17:18 17:54 dusk dawn 07:04 07:40 97 % 23:17 all night
Tue, 11-Feb 17:20 17:56 dusk dawn 07:02 07:38 100 % 00:07 all night
Wed, 12-Feb 17:21 17:58 dusk dawn 07:00 07:36 100 % 00:53 all night
Thu, 13-Feb 17:23 17:59 18:32 dawn 06:58 07:34 98 % 01:36 before dawn
Fri, 14-Feb 17:25 18:01 19:47 dawn 06:56 07:32 94 % 02:17 before dawn
Sat, 15-Feb 17:27 18:03 21:00 dawn 06:54 07:30 89 % 02:56 before dawn
Sun, 16-Feb 17:29 18:05 22:13 dawn 06:52 07:28 83 % 03:36 before dawn
Mon, 17-Feb 17:31 18:07 23:26 dawn 06:50 07:26 75 % 04:16
Tue, 18-Feb 17:33 18:09 00:41 dawn 06:48 07:24 66 % 04:59
Wed, 19-Feb 17:35 18:10 01:57 dawn 06:46 07:21 57 % 05:45
Thu, 20-Feb 17:37 18:12 03:13 dawn 06:44 07:19 48 % 06:35
Fri, 21-Feb 17:39 18:14 04:24 dawn 06:42 07:17 38 % 07:28
Sat, 22-Feb 17:41 18:16 05:23 dawn 06:40 07:15 28 % 08:23
Sun, 23-Feb 17:43 18:18 06:07 dawn 06:38 07:13 20 % 09:20
Mon, 24-Feb 17:45 18:19 06:36 07:11 12 % 10:17
Tue, 25-Feb 17:46 18:21 06:34 07:08 6 % 11:12
Wed, 26-Feb 17:48 18:23 06:31 07:06 2 %
Thu, 27-Feb 17:50 18:25 06:29 07:04 0 % 12:04
Fri, 28-Feb 17:52 18:27 dusk 18:43 06:27 07:02 1 % 12:55
Sat, 01-Mar 17:54 18:29 dusk 20:14 06:25 06:59 6 % 13:45
Sun, 02-Mar 17:56 18:30 dusk 21:47 06:23 06:57 12 % 14:35
Mon, 03-Mar 17:58 18:32 dusk 23:21 06:20 06:55 21 % 15:27
Tue, 04-Mar 18:00 18:34 dusk 00:55 06:18 06:53 31 % 16:22
Wed, 05-Mar 18:01 18:36 dusk 02:26 06:16 06:50 42 % 17:19
Thu, 06-Mar 18:03 18:38 dusk 03:44 06:14 06:48 54 % 18:19
Fri, 07-Mar 18:05 18:40 dusk 04:44 06:11 06:46 64 % 19:19
Sat, 08-Mar 18:07 18:41 dusk 05:24 06:09 06:43 74 % 20:18
Sun, 09-Mar 18:09 18:43 dusk 05:50 06:07 06:41 83 % 21:13 after dusk
Mon, 10-Mar 18:11 18:45 dusk dawn 06:04 06:39 90 % 22:03 all night
Tue, 11-Mar 18:12 18:47 dusk dawn 06:02 06:36 95 % 22:50 all night
Wed, 12-Mar 18:14 18:49 dusk dawn 06:00 06:34 98 % 23:33 all night
Thu, 13-Mar 18:16 18:50 dusk dawn 05:57 06:31 100 % 00:14 all night
Fri, 14-Mar 18:18 18:52 dusk dawn 05:55 06:29 100 % 00:54 all night
Sat, 15-Mar 18:20 18:54 19:58 dawn 05:52 06:27 97 % 01:33 before dawn
Sun, 16-Mar 18:22 18:56 21:11 dawn 05:50 06:24 93 % 02:13 before dawn
Mon, 17-Mar 18:23 18:58 22:25 dawn 05:48 06:22 88 % 02:55 before dawn
Tue, 18-Mar 18:25 19:00 23:41 dawn 05:45 06:20 81 % 03:40 before dawn
Wed, 19-Mar 18:27 19:01 00:57 dawn 05:43 06:17 73 % 04:28
Thu, 20-Mar 18:29 19:03 02:09 dawn 05:40 06:15 64 % 05:18
Fri, 21-Mar 18:31 19:05 03:13 dawn 05:38 06:12 55 % 06:12
Sat, 22-Mar 18:32 19:07 04:02 dawn 05:36 06:10 45 % 07:07
Sun, 23-Mar 18:34 19:09 04:36 dawn 05:33 06:08 35 % 08:02
Mon, 24-Mar 18:36 19:11 05:00 dawn 05:31 06:05 25 % 08:56
Tue, 25-Mar 18:38 19:12 05:17 dawn 05:28 06:03 16 % 09:49
Wed, 26-Mar 18:39 19:14 05:26 06:01 9 % 10:40
Thu, 27-Mar 18:41 19:16 05:23 05:58 3 % 11:30
Fri, 28-Mar 18:43 19:18 05:21 05:56 0 %
Sat, 29-Mar 18:45 19:20 06:18 06:53 0 % 12:21
Sun, 30-Mar 19:47 20:22 dusk 21:48 06:16 06:51 3 % 14:13
Mon, 31-Mar 19:48 20:24 dusk 23:26 06:14 06:49 9 % 15:09
Tue, 01-Apr 19:50 20:25 dusk 01:03 06:11 06:46 17 % 16:07
Wed, 02-Apr 19:52 20:27 dusk 02:30 06:09 06:44 27 % 17:09
Thu, 03-Apr 19:54 20:29 dusk 03:38 06:06 06:42 38 % 18:11
Fri, 04-Apr 19:56 20:31 dusk 04:25 06:04 06:39 49 % 19:12
Sat, 05-Apr 19:57 20:33 dusk 04:56 06:01 06:37 59 % 20:09
Sun, 06-Apr 19:59 20:35 dusk 05:15 05:59 06:35 69 % 21:01
Mon, 07-Apr 20:01 20:37 dusk 05:29 05:56 06:32 78 % 21:49 after dusk
Tue, 08-Apr 20:03 20:39 dusk 05:39 05:54 06:30 86 % 22:32 after dusk
Wed, 09-Apr 20:04 20:41 dusk 05:48 05:52 06:28 92 % 23:13 after dusk
Thu, 10-Apr 20:06 20:42 dusk dawn 05:49 06:25 96 % 23:53 all night
Fri, 11-Apr 20:08 20:44 dusk dawn 05:47 06:23 99 % 00:32 all night
Sat, 12-Apr 20:10 20:46 dusk dawn 05:44 06:21 100 % 01:12 all night
Sun, 13-Apr 20:12 20:48 21:12 dawn 05:42 06:18 99 % 01:53 before dawn
Mon, 14-Apr 20:13 20:50 22:27 dawn 05:39 06:16 97 % 02:37 before dawn
Tue, 15-Apr 20:15 20:52 23:43 dawn 05:37 06:14 92 % 03:24 before dawn
Wed, 16-Apr 20:17 20:54 00:57 dawn 05:35 06:12 87 % 04:13 before dawn
Thu, 17-Apr 20:19 20:56 02:04 dawn 05:32 06:09 79 % 05:06 before dawn
Fri, 18-Apr 20:20 20:58 02:57 dawn 05:30 06:07 71 % 05:59
Sat, 19-Apr 20:22 21:00 03:36 dawn 05:27 06:05 61 % 06:53
Sun, 20-Apr 20:24 21:02 04:03 dawn 05:25 06:03 51 % 07:46
Mon, 21-Apr 20:26 21:04 04:22 dawn 05:23 06:01 41 % 08:38
Tue, 22-Apr 20:28 21:06 04:36 dawn 05:20 05:59 30 % 09:28
Wed, 23-Apr 20:29 21:08 04:48 dawn 05:18 05:56 20 % 10:17
Thu, 24-Apr 20:31 21:10 04:58 dawn 05:16 05:54 12 % 11:06
Fri, 25-Apr 20:33 21:12 05:09 dawn 05:13 05:52 5 % 11:57
Sat, 26-Apr 20:35 21:14 05:11 05:50 1 %
Sun, 27-Apr 20:36 21:16 05:09 05:48 0 % 12:51
Mon, 28-Apr 20:38 21:18 dusk 22:25 05:07 05:46 2 % 13:49
Tue, 29-Apr 20:40 21:20 dusk 00:01 05:04 05:44 7 % 14:50
Wed, 30-Apr 20:42 21:22 dusk 01:22 05:02 05:42 14 % 15:55
Thu, 01-May 20:43 21:24 dusk 02:20 05:00 05:40 23 % 16:59
Fri, 02-May 20:45 21:26 dusk 02:57 04:58 05:38 33 % 17:59
Sat, 03-May 20:47 21:28 dusk 03:21 04:56 05:36 44 % 18:55
Sun, 04-May 20:49 21:30 dusk 03:36 04:53 05:34 54 % 19:45
Mon, 05-May 20:50 21:32 dusk 03:48 04:51 05:32 64 % 20:31
Tue, 06-May 20:52 21:34 dusk 03:57 04:49 05:31 73 % 21:13
Wed, 07-May 20:54 21:36 dusk 04:05 04:47 05:29 81 % 21:53 after dusk
Thu, 08-May 20:55 21:37 dusk 04:13 04:45 05:27 88 % 22:32 after dusk
Fri, 09-May 20:57 21:39 dusk 04:22 04:43 05:25 93 % 23:11 after dusk
Sat, 10-May 20:59 21:41 dusk 04:32 04:41 05:24 97 % 23:52 after dusk
Sun, 11-May 21:00 21:43 dusk dawn 04:39 05:22 99 % 00:35 all night
Mon, 12-May 21:02 21:45 dusk dawn 04:37 05:20 100 % 01:21 all night
Tue, 13-May 21:04 21:47 22:46 dawn 04:35 05:19 98 % 02:10 before dawn
Wed, 14-May 21:05 21:49 23:55 dawn 04:33 05:17 95 % 03:01 before dawn
Thu, 15-May 21:07 21:51 00:53 dawn 04:31 05:15 90 % 03:55 before dawn
Fri, 16-May 21:09 21:53 01:36 dawn 04:30 05:14 84 % 04:49 before dawn
Sat, 17-May 21:10 21:55 02:06 dawn 04:28 05:12 76 % 05:41 before dawn
Sun, 18-May 21:12 21:57 02:27 dawn 04:26 05:11 66 % 06:32
Mon, 19-May 21:13 21:58 02:42 dawn 04:24 05:10 56 % 07:21
Tue, 20-May 21:15 22:00 02:54 dawn 04:23 05:08 45 % 08:09
Wed, 21-May 21:16 22:02 03:05 dawn 04:21 05:07 34 % 08:56
Thu, 22-May 21:18 22:04 03:15 dawn 04:20 05:06 24 % 09:44
Fri, 23-May 21:19 22:05 03:27 dawn 04:18 05:04 14 % 10:35
Sat, 24-May 21:21 22:07 03:41 dawn 04:16 05:03 7 % 11:30
Sun, 25-May 21:22 22:09 04:15 05:02 2 %
Mon, 26-May 21:23 22:10 04:14 05:01 0 % 12:29
Tue, 27-May 21:25 22:12 dusk 22:54 04:12 05:00 1 % 13:33
Wed, 28-May 21:26 22:14 dusk 00:04 04:11 04:59 5 % 14:39
Thu, 29-May 21:27 22:15 dusk 00:52 04:10 04:58 11 % 15:43
Fri, 30-May 21:28 22:17 dusk 01:22 04:09 04:57 19 % 16:43
Sat, 31-May 21:30 22:18 dusk 01:41 04:07 04:56 28 % 17:37
Sun, 01-Jun 21:31 22:19 dusk 01:55 04:06 04:55 38 % 18:26
Mon, 02-Jun 21:32 22:21 dusk 02:05 04:05 04:54 48 % 19:10
Tue, 03-Jun 21:33 22:22 dusk 02:14 04:04 04:54 58 % 19:51
Wed, 04-Jun 21:34 22:23 dusk 02:22 04:03 04:53 67 % 20:31
Thu, 05-Jun 21:35 22:25 dusk 02:30 04:03 04:52 76 % 21:10 after dusk
Fri, 06-Jun 21:36 22:26 dusk 02:40 04:02 04:52 83 % 21:50 after dusk
Sat, 07-Jun 21:37 22:27 dusk 02:52 04:01 04:51 90 % 22:32 after dusk
Sun, 08-Jun 21:38 22:28 dusk 03:08 04:01 04:51 95 % 23:17 after dusk
Mon, 09-Jun 21:39 22:29 dusk 03:31 04:00 04:50 98 % 00:05 after dusk
Tue, 10-Jun 21:39 22:30 dusk dawn 03:59 04:50 100 % 00:57 all night
Wed, 11-Jun 21:40 22:31 22:47 dawn 03:59 04:50 99 % 01:50 before dawn
Thu, 12-Jun 21:41 22:32 23:35 dawn 03:59 04:49 97 % 02:44 before dawn
Fri, 13-Jun 21:41 22:32 00:09 dawn 03:58 04:49 93 % 03:38 before dawn
Sat, 14-Jun 21:42 22:33 00:32 dawn 03:58 04:49 87 % 04:29 before dawn
Sun, 15-Jun 21:42 22:34 00:49 dawn 03:58 04:49 79 % 05:19 before dawn
Mon, 16-Jun 21:43 22:34 01:02 dawn 03:58 04:49 70 % 06:06
Tue, 17-Jun 21:43 22:35 01:12 dawn 03:58 04:49 60 % 06:52
Wed, 18-Jun 21:44 22:35 01:22 dawn 03:58 04:49 48 % 07:38
Thu, 19-Jun 21:44 22:35 01:33 dawn 03:58 04:49 37 % 08:27
Fri, 20-Jun 21:44 22:36 01:45 dawn 03:58 04:49 26 % 09:18

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!

Snowdonia weather (Accuweather)

Now would be a good time for a cup of tea.