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Snowdon Walk

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

Mountain Snowdonia

Hiking weather forecast

Snowdonia hourly weather (Visual Crossing)

Sunset: 21:02. Dusk: 21:45. Dark: 22:45. Moon 100% (dusk to dawn)

Updated: Mon, 12-May at 14:39

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 0% 0% 0% 0% 0% 0% 100% 0% 0% 94% 94% 94% 94% 94% 16% 16%
Tue, 13 May 0% 0% 3% 3% 3% 3% 3% 3% 23% 23% 23% 23% 23% 23% 0% 0%
Wed, 14 May 0% 0% 0% 0% 0% 0% 0% 0% 3% 3% 3% 3% 3% 3% 0% 0%
Thu, 15 May 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Fri, 16 May 0% 0% 0% 0% 0% 0% 0% 0% 3% 3% 3% 3% 3% 3% 0% 0%
Sat, 17 May 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Sun, 18 May 0% 0% 0% 0% 0% 0% 0% 0% 7% 7% 7% 7% 7% 7% 0% 0%
Mon, 19 May 0% 0% 3% 3% 3% 3% 3% 3% 7% 7% 7% 7% 7% 7% 3% 3%
Tue, 20 May 3% 3% 3% 3% 3% 3% 3% 3% 16% 16% 16% 16% 16% 16% 10% 10%
Wed, 21 May 7% 7% 7% 7% 7% 7% 7% 7% 7% 7% 7% 7% 7% 7% 13% 13%
Thu, 22 May 7% 7% 13% 13% 13% 13% 13% 13% 26% 26% 26% 26% 26% 26% 26% 26%
Fri, 23 May 19% 19% 29% 29% 29% 29% 29% 29% 42% 42% 42% 42% 42% 42% 32% 32%
Sat, 24 May 26% 26% 39% 39% 39% 39% 39% 39% 32% 32% 32% 32% 32% 32% 26% 26%
Sun, 25 May 13% 13% 32% 32% 32% 32% 32% 32% 45% 45% 45% 45% 45% 45% 32% 32%
Mon, 26 May 16% 16% 32% 32% 32% 32% 32% 32% 26% 26% 26% 26% 26% 26% 19% 19%

Percentages are the chance of rain.

Weather data by Visual Crossing

Snowdonia hourly weather (Open Meteo)

Sunset: 21:02. Dusk: 21:45. Dark: 22:45. Moon 100% (dusk to dawn)

Updated: Mon, 12-May at 14:37

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 27% 48% 65% 80% 92% 92% 71% 39%
Tue, 13 May 0% 0% 0% 0% 0% 0% 0% 0% 3% 6% 8% 7% 4% 2% 1% 0%
Wed, 14 May 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Thu, 15 May 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Fri, 16 May 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Sat, 17 May 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Sun, 18 May 0% 0% 1% 2% 3% 4% 5% 6% 7% 8% 8% 8% 8% 8% 7% 6%
Mon, 19 May 0% 0% 0% 1% 1% 1% 2% 2% 2% 2% 2% 2% 2% 2% 2% 1%
Tue, 20 May 0% 0% 0% 0% 0% 0% 0% 0% 0% 1% 1% 1% 2% 2% 2% 2%
Wed, 21 May 0% 0% 0% 1% 2% 3% 3% 4% 4% 5% 5% 5% 6% 6% 6% 6%
Thu, 22 May 9% 10% 11% 12% 13% 14% 15% 16% 17% 19% 20% 21% 22% 22% 21% 18%
Fri, 23 May 21% 24% 26% 28% 30% 31% 33% 33% 33% 31% 30% 29% 27% 25% 23% 21%
Sat, 24 May 20% 22% 23% 24% 25% 26% 26% 27% 28% 28% 29% 29% 29% 29% 28% 27%
Sun, 25 May 20% 22% 25% 30% 34% 38% 42% 45% 46% 45% 44% 43% 41% 39% 37% 34%
Mon, 26 May 33% 35% 38% 42% 45% 48% 51% 53% 53% 52% 50% 48% 45% 43% 41% 39%
Tue, 27 May 21% 23% 25% 26% 28% 30% 31% 32% 32% 32% 31% 30% 30% 29% 28% 27%

Percentages are the chance of rain.

Weather data by Open-Meteo

Snowdonia hourly weather (Met Office)

Sunset: 21:02. Dusk: 21:45. Dark: 22:45. Moon 100% (dusk to dawn)

Updated: Mon, 12-May at 14:00

06 09 12 15 18 21
Today 66% 9% 1%
Tue, 13 May 0% 0% 3% 2% 0% 0%
Wed, 14 May 0% 0% 0% 0% 0% 0%
Thu, 15 May 1% 1% 1% 0% 0% 0%
Fri, 16 May 0% 0% 0% 0% 0% 0%
Sat, 17 May 1% 1% 0% 0% 1% 0%
Sun, 18 May 0% 1% 1% 2% 2% 1%
Mon, 19 May 1% 2% 2%

Percentages are the chance of rain.

Weather data by Met Office

Regional weather (Met Office)

Sunset: 21:02. Dusk: 21:45. Dark: 22:45. Moon 100% (dusk to dawn)

Updated: Mon, 12-May at 14:38

Wales

Warm sunny spells and scattered showers or thunderstorms developing Monday.

  • Largely dry with sunny spells throughout the day
  • However, the clouds will bubble up with some scattered heavy showers and thunderstorms breaking out during the afternoon
  • Risk of hail
  • Feeling rather warm in the sunshine between the showers
  • Light winds
  • Maximum Temperature 24C

Tonight:

  • Any showers or thunderstorms gradually easing to leave a largely dry night, with some clear spells
  • Some isolated mist and fog patches forming in places by dawn
  • Generally mild
  • Minimum Temperature 5C

Tuesday:

  • Early isolated mist and fog patches soon clearing to give a mostly fine day, with warm sunny spells
  • Chance of further showers breaking out towards the south during the afternoon
  • Maximum Temperature 25C

Outlook for Wednesday to Friday:

  • Staying fine and settled through the remainder of the week
  • Dry with plenty of sunshine by day, with clear skies overnight
  • Temperatures staying above average, but with some cooler nights

UK Day 6-7 and week 2

  • Dry, fine, and largely sunny conditions are expected to continue for the majority of the UK as the slow moving area of high pressure remains centred over the country
  • The weather will continue to feel feel warm or very warm, but it may feel cooler near the east coast
  • This area of high pressure is expected to remain in place through much of the following week, however there is an increasing likelihood that conditions could turn wetter and more unsettled by the following weekend
  • Areas of rain and strengthening winds may approach from the west and/or south, with a chance of thundery outbreaks at times as well
  • Daytime temperatures continue to be generally above average at first, and perhaps closer to average later on in the period

UK Week 3 and 4

  • The start of the period may see some more in the way of rain and showers across, especially across western parts
  • Fine and dry weather is more likely to prevail towards the south and east and may start to develop more widely, but occasional spells of rain and showers are still possible, with potential for thunderstorms on some days
  • Overall, temperatures will most likely be around or above normal for the time of year

Weather data by Met Office

Snowdonia mountain weather forecast (Met Office)

Sunset: 21:02. Dusk: 21:45. Dark: 22:45. Moon 100% (dusk to dawn)

Updated: Mon, 12-May at 02:39

Specialist mountain forecast: MWIS

Today
Mon, 12-May

Sunny spells and scattered heavy showers develop in the afternoon with a risk of thunder.

A fine start to the day with scattered high level cloud bringing some hazy sunshine across the park. Through the late morning and into the afternoon, feeling warm with a scattered heavy showers developing and a risk of thunder and hail in any heavy downpours.

Low risk Poor Visibility
Medium risk Thunderstorms Strong Sunlight
Medium risk Thunderstorms Strong Sunlight
Chance of Cloud free tops 85%.
Ground conditions Please see - https://yrwyddfa.live/
Visibility Occasional cloud during the morning is expected to be well above the summits, with visibility excellent to very good. In any heavy showers or thunderstorms, scrappy bits of cloud may form close to summit tops with visibilities falling to poor or very poor.
Confidence Moderate confidence on the northward progression of rain this evening, followed by extent and severity of heavy showers and thunderstorms on Monday. Confidence increasing by Tuesday for fine, warm and settled conditions to develop.
View Moderate to High UV levels with sun protection advised. Be prepared for sudden changes in the weather as during any heavy showers or thunderstorms, it may become treacherous to be on the hills with a risk of flash flooding, lightening and hail. Suitable wet weather clothing should be carried, even if it appears fine and dry as showers can develop quickly.

Conditions on the tops at 900m

Time Weather Rain Temp Wind Freezing
06:00 Sunny intervals <05% 11 21 2400m
09:00 Sunny intervals 20% 11 17 2500m
12:00 Heavy rain showers 40% 12 15 2400m
15:00 Thundery showers 60% 13 17 2500m
18:00 Thundery showers 30% 12 17 2400m
21:00 Light rain showers (night) 30% 12 20 2300m
Tue, 13-May

A fine, dry and sunny day with little to no cloud across Eryri. Feeling warm with High UV levels expected.

Ice Well above summits.
Visibility Very good to excellent visibility with views of distant hills. Little to no cloud around, any isolated amounts will be well above summits.
Wind Easterly winds 10-12mph with gusts up to 25mph. Stronger winds expected over to the west of the park with marked lee waves developing, here with summit winds reaching 20-25mph and gusting up to 35mph.
Temp (tops) Plus 08 Celsius rising to Plus 15 Celsius. at 800m
Wed, 14-May

Plenty of sunshine, staying dry and feeling warm with High UV levels. Moderate to fresh easterly winds. Freezing level well above summits.

Thu, 15-May

Settled conditions continuing with prolonged sunshine, feeling warm with UV levels remaining High. Moderate to fresh northeasterly winds. Freezing level well above summits.

Fri, 16-May

Similar conditions expected towards the end of the week, with further sunshine and warmth. Moderate to fresh northeasterly winds. Freezing level well above summits.

Weather data by Met Office

Snowdonia Air Quality (Pollen and UV)

Updated: Mon, 12-May at 14:37

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 UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q   birch grass air q   birch grass air q   birch grass
Tue, 13 May air q   birch grass air q   birch grass air q   birch grass air q   birch grass air q   birch grass air q   birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q   birch grass air q   birch grass air q   birch grass
Wed, 14 May air q   birch grass air q   birch grass air q   birch grass air q   birch grass air q   birch grass air q   birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q   birch grass air q   birch grass air q   birch grass
Thu, 15 May air q   birch grass air q   birch grass air q   birch grass air q   birch grass air q   birch grass air q   birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q UV birch grass air q   birch grass air q   birch grass air q   birch grass

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, 12-May at 14:37

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 30km 30km 28km 20km 19km 21km 50km 50km
Tue, 13 May 24km 26km 27km 29km 50km 50km 36km 39km 42km 45km 47km 48km 49km 45km 41km 40km
Wed, 14 May 50km 35km 38km 44km 48km 50km 50km 50km 50km 50km 50km 50km 49km 50km 40km 39km
Thu, 15 May 49km 74km 76km 74km 75km 76km 76km 76km 76km 75km 75km 74km 72km 71km 65km 60km
Fri, 16 May 27km 30km 42km 54km 65km 70km 74km 78km 78km 77km 77km 77km 76km 76km 76km 76km

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, 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
Sat, 21-Jun 02:30 03:58 04:49 13:17 21:44 22:36 00:04 18:37
Sun, 22-Jun 02:30 03:58 04:50 13:17 21:45 22:36 00:04 18:37
Mon, 23-Jun 02:31 03:59 04:50 13:17 21:45 22:36 00:04 18:37
Tue, 24-Jun 02:31 03:59 04:50 13:18 21:45 22:36 00:03 18:36
Wed, 25-Jun 02:32 04:00 04:51 13:18 21:45 22:36 00:03 18:36
Thu, 26-Jun 02:33 04:00 04:51 13:18 21:45 22:36 00:02 18:35
Fri, 27-Jun 02:34 04:01 04:52 13:18 21:45 22:35 00:02 18:34
Sat, 28-Jun 02:35 04:01 04:52 13:18 21:44 22:35 00:01 18:33
Sun, 29-Jun 02:36 04:02 04:53 13:19 21:44 22:35 00:00 18:32
Mon, 30-Jun 02:38 04:03 04:54 13:19 21:44 22:34 23:59 18:31
Tue, 01-Jul 02:39 04:04 04:54 13:19 21:43 22:34 23:58 18:30
Wed, 02-Jul 02:41 04:05 04:55 13:19 21:43 22:33 23:56 18:28
Thu, 03-Jul 02:43 04:06 04:56 13:19 21:43 22:33 23:55 18:27
Fri, 04-Jul 02:44 04:07 04:57 13:20 21:42 22:32 23:53 18:25
Sat, 05-Jul 02:46 04:08 04:57 13:20 21:41 22:31 23:52 18:23
Sun, 06-Jul 02:48 04:09 04:58 13:20 21:41 22:30 23:50 18:21
Mon, 07-Jul 02:50 04:10 04:59 13:20 21:40 22:29 23:48 18:19
Tue, 08-Jul 02:52 04:11 05:00 13:20 21:39 22:28 23:46 18:17
Wed, 09-Jul 02:55 04:12 05:01 13:20 21:39 22:27 23:44 18:15
Thu, 10-Jul 02:57 04:14 05:03 13:21 21:38 22:26 23:42 18:12
Fri, 11-Jul 02:59 04:15 05:04 13:21 21:37 22:25 23:40 18:10
Sat, 12-Jul 03:01 04:17 05:05 13:21 21:36 22:24 23:38 18:07
Sun, 13-Jul 03:04 04:18 05:06 13:21 21:35 22:23 23:36 18:04
Mon, 14-Jul 03:06 04:19 05:07 13:21 21:34 22:21 23:34 18:02
Tue, 15-Jul 03:09 04:21 05:08 13:21 21:33 22:20 23:32 17:59
Wed, 16-Jul 03:11 04:23 05:10 13:21 21:32 22:19 23:29 17:56
Thu, 17-Jul 03:14 04:24 05:11 13:21 21:31 22:17 23:27 17:53
Fri, 18-Jul 03:16 04:26 05:12 13:21 21:29 22:16 23:25 17:50
Sat, 19-Jul 03:19 04:27 05:14 13:21 21:28 22:14 23:22 17:46
Sun, 20-Jul 03:21 04:29 05:15 13:21 21:27 22:13 23:20 17:43
Mon, 21-Jul 03:24 04:31 05:17 13:22 21:26 22:11 23:17 17:40
Tue, 22-Jul 03:26 04:33 05:18 13:22 21:24 22:09 23:15 17:36
Wed, 23-Jul 03:29 04:34 05:20 13:22 21:23 22:08 23:12 17:33
Thu, 24-Jul 03:31 04:36 05:21 13:22 21:21 22:06 23:10 17:29
Fri, 25-Jul 03:34 04:38 05:22 13:22 21:20 22:04 23:07 17:26
Sat, 26-Jul 03:37 04:40 05:24 13:22 21:18 22:02 23:05 17:22
Sun, 27-Jul 03:39 04:41 05:26 13:22 21:17 22:00 23:02 17:19
Mon, 28-Jul 03:42 04:43 05:27 13:22 21:15 21:59 22:59 17:15
Tue, 29-Jul 03:44 04:45 05:29 13:22 21:13 21:57 22:57 17:11
Wed, 30-Jul 03:47 04:47 05:30 13:22 21:12 21:55 22:54 17:07
Thu, 31-Jul 03:50 04:49 05:32 13:21 21:10 21:53 22:51 17:03
Fri, 01-Aug 03:52 04:51 05:33 13:21 21:08 21:51 22:49 16:59
Sat, 02-Aug 03:55 04:53 05:35 13:21 21:07 21:49 22:46 16:56
Sun, 03-Aug 03:57 04:55 05:37 13:21 21:05 21:47 22:43 16:52
Mon, 04-Aug 04:00 04:56 05:38 13:21 21:03 21:45 22:41 16:48
Tue, 05-Aug 04:02 04:58 05:40 13:21 21:01 21:42 22:38 16:44
Wed, 06-Aug 04:05 05:00 05:42 13:21 20:59 21:40 22:35 16:40
Thu, 07-Aug 04:07 05:02 05:43 13:21 20:57 21:38 22:32 16:35
Fri, 08-Aug 04:10 05:04 05:45 13:21 20:55 21:36 22:30 16:31
Sat, 09-Aug 04:12 05:06 05:47 13:21 20:53 21:34 22:27 16:27
Sun, 10-Aug 04:15 05:08 05:48 13:20 20:51 21:32 22:24 16:23
Mon, 11-Aug 04:17 05:10 05:50 13:20 20:49 21:29 22:22 16:19
Tue, 12-Aug 04:19 05:12 05:52 13:20 20:47 21:27 22:19 16:15
Wed, 13-Aug 04:22 05:14 05:53 13:20 20:45 21:25 22:16 16:11
Thu, 14-Aug 04:24 05:16 05:55 13:20 20:43 21:22 22:13 16:06
Fri, 15-Aug 04:27 05:17 05:57 13:20 20:41 21:20 22:10 16:02
Sat, 16-Aug 04:29 05:19 05:58 13:19 20:39 21:18 22:08 15:58
Sun, 17-Aug 04:31 05:21 06:00 13:19 20:37 21:16 22:05 15:54
Mon, 18-Aug 04:34 05:23 06:02 13:19 20:35 21:13 22:02 15:49
Tue, 19-Aug 04:36 05:25 06:03 13:19 20:33 21:11 21:59 15:45
Wed, 20-Aug 04:38 05:27 06:05 13:18 20:31 21:08 21:57 15:41
Thu, 21-Aug 04:41 05:29 06:07 13:18 20:28 21:06 21:54 15:37
Fri, 22-Aug 04:43 05:31 06:09 13:18 20:26 21:04 21:51 15:32
Sat, 23-Aug 04:45 05:33 06:10 13:18 20:24 21:01 21:48 15:28
Sun, 24-Aug 04:47 05:35 06:12 13:17 20:22 20:59 21:46 15:24
Mon, 25-Aug 04:50 05:36 06:14 13:17 20:19 20:56 21:43 15:20
Tue, 26-Aug 04:52 05:38 06:15 13:17 20:17 20:54 21:40 15:15
Wed, 27-Aug 04:54 05:40 06:17 13:17 20:15 20:52 21:37 15:11
Thu, 28-Aug 04:56 05:42 06:19 13:16 20:13 20:49 21:35 15:07
Fri, 29-Aug 04:58 05:44 06:20 13:16 20:10 20:47 21:32 15:02
Sat, 30-Aug 05:00 05:46 06:22 13:16 20:08 20:44 21:29 14:58
Sun, 31-Aug 05:03 05:48 06:24 13:15 20:06 20:42 21:26 14:54
Mon, 01-Sep 05:05 05:49 06:26 13:15 20:03 20:39 21:24 14:50
Tue, 02-Sep 05:07 05:51 06:27 13:15 20:01 20:37 21:21 14:45
Wed, 03-Sep 05:09 05:53 06:29 13:14 19:59 20:34 21:18 14:41
Thu, 04-Sep 05:11 05:55 06:31 13:14 19:56 20:32 21:16 14:37
Fri, 05-Sep 05:13 05:57 06:32 13:14 19:54 20:29 21:13 14:32
Sat, 06-Sep 05:15 05:58 06:34 13:13 19:52 20:27 21:10 14:28
Sun, 07-Sep 05:17 06:00 06:36 13:13 19:49 20:25 21:07 14:24
Mon, 08-Sep 05:19 06:02 06:37 13:13 19:47 20:22 21:05 14:20
Tue, 09-Sep 05:21 06:04 06:39 13:12 19:44 20:20 21:02 14:15
Wed, 10-Sep 05:23 06:06 06:41 13:12 19:42 20:17 20:59 14:11
Thu, 11-Sep 05:25 06:07 06:42 13:12 19:40 20:15 20:57 14:07
Fri, 12-Sep 05:27 06:09 06:44 13:11 19:37 20:12 20:54 14:02
Sat, 13-Sep 05:29 06:11 06:46 13:11 19:35 20:10 20:52 13:58
Sun, 14-Sep 05:31 06:13 06:48 13:11 19:32 20:07 20:49 13:54
Mon, 15-Sep 05:33 06:14 06:49 13:10 19:30 20:05 20:46 13:50
Tue, 16-Sep 05:35 06:16 06:51 13:10 19:28 20:02 20:44 13:46
Wed, 17-Sep 05:37 06:18 06:53 13:09 19:25 20:00 20:41 13:41
Thu, 18-Sep 05:38 06:20 06:54 13:09 19:23 19:57 20:38 13:37
Fri, 19-Sep 05:40 06:21 06:56 13:09 19:20 19:55 20:36 13:33
Sat, 20-Sep 05:42 06:23 06:58 13:08 19:18 19:52 20:33 13:29
Sun, 21-Sep 05:44 06:25 06:59 13:08 19:16 19:50 20:31 13:24
Mon, 22-Sep 05:46 06:27 07:01 13:08 19:13 19:47 20:28 13:20
Tue, 23-Sep 05:48 06:28 07:03 13:07 19:11 19:45 20:26 13:16
Wed, 24-Sep 05:50 06:30 07:05 13:07 19:08 19:43 20:23 13:12
Thu, 25-Sep 05:51 06:32 07:06 13:07 19:06 19:40 20:21 13:08
Fri, 26-Sep 05:53 06:34 07:08 13:06 19:04 19:38 20:18 13:04
Sat, 27-Sep 05:55 06:35 07:10 13:06 19:01 19:35 20:16 12:59
Sun, 28-Sep 05:57 06:37 07:12 13:06 18:59 19:33 20:13 12:55
Mon, 29-Sep 05:59 06:39 07:13 13:05 18:56 19:31 20:11 12:51
Tue, 30-Sep 06:00 06:41 07:15 13:05 18:54 19:28 20:08 12:47
Wed, 01-Oct 06:02 06:42 07:17 13:05 18:52 19:26 20:06 12:43
Thu, 02-Oct 06:04 06:44 07:18 13:04 18:49 19:23 20:03 12:39
Fri, 03-Oct 06:06 06:46 07:20 13:04 18:47 19:21 20:01 12:35
Sat, 04-Oct 06:08 06:48 07:22 13:04 18:45 19:19 19:59 12:31
Sun, 05-Oct 06:09 06:49 07:24 13:03 18:42 19:16 19:56 12:27
Mon, 06-Oct 06:11 06:51 07:25 13:03 18:40 19:14 19:54 12:23
Tue, 07-Oct 06:13 06:53 07:27 13:03 18:37 19:12 19:52 12:19
Wed, 08-Oct 06:15 06:54 07:29 13:03 18:35 19:10 19:49 12:15
Thu, 09-Oct 06:16 06:56 07:31 13:02 18:33 19:07 19:47 12:11
Fri, 10-Oct 06:18 06:58 07:33 13:02 18:31 19:05 19:45 12:07
Sat, 11-Oct 06:20 07:00 07:34 13:02 18:28 19:03 19:43 12:03
Sun, 12-Oct 06:22 07:01 07:36 13:01 18:26 19:01 19:40 11:59
Mon, 13-Oct 06:23 07:03 07:38 13:01 18:24 18:58 19:38 11:55
Tue, 14-Oct 06:25 07:05 07:40 13:01 18:21 18:56 19:36 11:51
Wed, 15-Oct 06:27 07:07 07:42 13:01 18:19 18:54 19:34 11:47
Thu, 16-Oct 06:28 07:08 07:43 13:01 18:17 18:52 19:32 11:43
Fri, 17-Oct 06:30 07:10 07:45 13:00 18:15 18:50 19:30 11:39
Sat, 18-Oct 06:32 07:12 07:47 13:00 18:13 18:48 19:27 11:35
Sun, 19-Oct 06:34 07:14 07:49 13:00 18:10 18:45 19:25 11:31
Mon, 20-Oct 06:35 07:15 07:51 13:00 18:08 18:43 19:23 11:27
Tue, 21-Oct 06:37 07:17 07:52 13:00 18:06 18:41 19:21 11:24
Wed, 22-Oct 06:39 07:19 07:54 13:00 18:04 18:39 19:19 11:20
Thu, 23-Oct 06:40 07:21 07:56 12:59 18:02 18:37 19:17 11:16
Fri, 24-Oct 06:42 07:22 07:58 12:59 18:00 18:35 19:15 11:12
Sat, 25-Oct 06:44 07:24 08:00 12:59 17:58 18:33 19:13 11:09
Sun, 26-Oct 05:45 06:26 07:02 11:59 16:56 17:31 18:12 11:05
Mon, 27-Oct 05:47 06:28 07:04 11:59 16:54 17:29 18:10 11:01
Tue, 28-Oct 05:49 06:29 07:05 11:59 16:52 17:27 18:08 10:58
Wed, 29-Oct 05:51 06:31 07:07 11:59 16:50 17:26 18:06 10:54
Thu, 30-Oct 05:52 06:33 07:09 11:59 16:48 17:24 18:04 10:50
Fri, 31-Oct 05:54 06:35 07:11 11:59 16:46 17:22 18:03 10:47
Sat, 01-Nov 05:56 06:36 07:13 11:59 16:44 17:20 18:01 10:43
Sun, 02-Nov 05:57 06:38 07:15 11:59 16:42 17:18 17:59 10:40
Mon, 03-Nov 05:59 06:40 07:17 11:59 16:40 17:17 17:58 10:36
Tue, 04-Nov 06:01 06:42 07:18 11:59 16:38 17:15 17:56 10:33
Wed, 05-Nov 06:02 06:43 07:20 11:59 16:36 17:13 17:54 10:29
Thu, 06-Nov 06:04 06:45 07:22 11:59 16:35 17:12 17:53 10:26
Fri, 07-Nov 06:05 06:47 07:24 11:59 16:33 17:10 17:51 10:23

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, 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
Sat, 21-Jun 21:44 22:36 02:02 dawn 03:58 04:50 17 % 10:13
Sun, 22-Jun 21:45 22:36 02:25 dawn 03:59 04:50 9 % 11:14
Mon, 23-Jun 21:45 22:36 03:59 04:50 3 %
Tue, 24-Jun 21:45 22:36 03:57 dawn 04:00 04:51 1 % 12:18
Wed, 25-Jun 21:45 22:36 dusk 22:42 04:00 04:51 1 % 13:23
Thu, 26-Jun 21:45 22:36 dusk 23:19 04:01 04:52 3 % 14:26
Fri, 27-Jun 21:45 22:35 dusk 23:43 04:01 04:52 8 % 15:24
Sat, 28-Jun 21:44 22:35 dusk 00:00 04:02 04:53 15 % 16:16
Sun, 29-Jun 21:44 22:35 dusk 00:11 04:03 04:54 23 % 17:03
Mon, 30-Jun 21:44 22:34 dusk 00:21 04:04 04:54 32 % 17:46
Tue, 01-Jul 21:43 22:34 dusk 00:29 04:05 04:55 42 % 18:27
Wed, 02-Jul 21:43 22:33 dusk 00:38 04:06 04:56 52 % 19:07
Thu, 03-Jul 21:43 22:33 dusk 00:47 04:07 04:57 61 % 19:47
Fri, 04-Jul 21:42 22:32 dusk 00:58 04:08 04:57 70 % 20:28
Sat, 05-Jul 21:41 22:31 dusk 01:12 04:09 04:58 78 % 21:12 after dusk
Sun, 06-Jul 21:41 22:30 dusk 01:32 04:10 04:59 85 % 21:59 after dusk
Mon, 07-Jul 21:40 22:29 dusk 02:02 04:11 05:00 92 % 22:49 after dusk
Tue, 08-Jul 21:39 22:28 dusk 02:45 04:12 05:01 96 % 23:43 after dusk
Wed, 09-Jul 21:39 22:27 dusk 03:45 04:14 05:03 99 % 00:37 after dusk
Thu, 10-Jul 21:38 22:26 dusk dawn 04:15 05:04 100 % 01:32 all night
Fri, 11-Jul 21:37 22:25 22:37 dawn 04:17 05:05 99 % 02:25 before dawn
Sat, 12-Jul 21:36 22:24 22:55 dawn 04:18 05:06 95 % 03:16 before dawn
Sun, 13-Jul 21:35 22:23 23:09 dawn 04:19 05:07 90 % 04:04 before dawn
Mon, 14-Jul 21:34 22:21 23:20 dawn 04:21 05:08 82 % 04:51 before dawn
Tue, 15-Jul 21:33 22:20 23:31 dawn 04:23 05:10 73 % 05:37
Wed, 16-Jul 21:32 22:19 23:41 dawn 04:24 05:11 62 % 06:24
Thu, 17-Jul 21:31 22:17 23:52 dawn 04:26 05:12 51 % 07:13
Fri, 18-Jul 21:29 22:16 00:06 dawn 04:27 05:14 39 % 08:05
Sat, 19-Jul 21:28 22:14 00:26 dawn 04:29 05:15 29 % 09:03
Sun, 20-Jul 21:27 22:13 00:56 dawn 04:31 05:17 19 % 10:04
Mon, 21-Jul 21:26 22:11 01:42 dawn 04:33 05:18 11 % 11:07
Tue, 22-Jul 21:24 22:09 04:34 05:20 5 %
Wed, 23-Jul 21:23 22:08 04:11 dawn 04:36 05:21 1 % 12:10
Thu, 24-Jul 21:21 22:06 04:38 05:22 0 % 13:09
Fri, 25-Jul 21:20 22:04 04:40 05:24 2 % 14:04
Sat, 26-Jul 21:18 22:02 dusk 22:17 04:41 05:26 5 % 14:53
Sun, 27-Jul 21:17 22:00 dusk 22:28 04:43 05:27 11 % 15:39
Mon, 28-Jul 21:15 21:59 dusk 22:37 04:45 05:29 18 % 16:21
Tue, 29-Jul 21:13 21:57 dusk 22:45 04:47 05:30 26 % 17:02
Wed, 30-Jul 21:12 21:55 dusk 22:54 04:49 05:32 35 % 17:42
Thu, 31-Jul 21:10 21:53 dusk 23:04 04:51 05:33 45 % 18:23
Fri, 01-Aug 21:08 21:51 dusk 23:16 04:53 05:35 54 % 19:06
Sat, 02-Aug 21:07 21:49 dusk 23:34 04:55 05:37 64 % 19:52
Sun, 03-Aug 21:05 21:47 dusk 23:59 04:56 05:38 72 % 20:41
Mon, 04-Aug 21:03 21:45 dusk 00:36 04:58 05:40 81 % 21:33 after dusk
Tue, 05-Aug 21:01 21:42 dusk 01:29 05:00 05:42 88 % 22:27 after dusk
Wed, 06-Aug 20:59 21:40 dusk 02:39 05:02 05:43 94 % 23:22 after dusk
Thu, 07-Aug 20:57 21:38 dusk 04:01 05:04 05:45 98 % 00:16 after dusk
Fri, 08-Aug 20:55 21:36 dusk dawn 05:06 05:47 100 % 01:08 all night
Sat, 09-Aug 20:53 21:34 dusk dawn 05:08 05:48 99 % 01:58 all night
Sun, 10-Aug 20:51 21:32 dusk dawn 05:10 05:50 97 % 02:46 all night
Mon, 11-Aug 20:49 21:29 21:39 dawn 05:12 05:52 92 % 03:34 before dawn
Tue, 12-Aug 20:47 21:27 21:49 dawn 05:14 05:53 84 % 04:21 before dawn
Wed, 13-Aug 20:45 21:25 22:00 dawn 05:16 05:55 75 % 05:10 before dawn
Thu, 14-Aug 20:43 21:22 22:13 dawn 05:17 05:57 64 % 06:02
Fri, 15-Aug 20:41 21:20 22:31 dawn 05:19 05:58 53 % 06:57
Sat, 16-Aug 20:39 21:18 22:57 dawn 05:21 06:00 42 % 07:56
Sun, 17-Aug 20:37 21:16 23:36 dawn 05:23 06:02 31 % 08:58
Mon, 18-Aug 20:35 21:13 00:34 dawn 05:25 06:03 21 % 10:00
Tue, 19-Aug 20:33 21:11 01:51 dawn 05:27 06:05 12 % 10:59
Wed, 20-Aug 20:31 21:08 03:16 dawn 05:29 06:07 6 % 11:55
Thu, 21-Aug 20:28 21:06 05:31 06:09 2 %
Fri, 22-Aug 20:26 21:04 05:33 06:10 0 % 12:45
Sat, 23-Aug 20:24 21:01 05:35 06:12 1 % 13:32
Sun, 24-Aug 20:22 20:59 05:36 06:14 3 % 14:15
Mon, 25-Aug 20:19 20:56 05:38 06:15 7 % 14:57
Tue, 26-Aug 20:17 20:54 dusk 21:01 05:40 06:17 13 % 15:37
Wed, 27-Aug 20:15 20:52 dusk 21:11 05:42 06:19 21 % 16:18
Thu, 28-Aug 20:13 20:49 dusk 21:22 05:44 06:20 29 % 17:01
Fri, 29-Aug 20:10 20:47 dusk 21:37 05:46 06:22 38 % 17:45
Sat, 30-Aug 20:08 20:44 dusk 21:59 05:48 06:24 47 % 18:32
Sun, 31-Aug 20:06 20:42 dusk 22:30 05:49 06:26 57 % 19:23
Mon, 01-Sep 20:03 20:39 dusk 23:15 05:51 06:27 66 % 20:15
Tue, 02-Sep 20:01 20:37 dusk 00:18 05:53 06:29 75 % 21:09 after dusk
Wed, 03-Sep 19:59 20:34 dusk 01:34 05:55 06:31 83 % 22:03 after dusk
Thu, 04-Sep 19:56 20:32 dusk 02:59 05:57 06:32 91 % 22:56 after dusk
Fri, 05-Sep 19:54 20:29 dusk 04:26 05:58 06:34 96 % 23:48 after dusk
Sat, 06-Sep 19:52 20:27 dusk 05:55 06:00 06:36 99 % 00:37 after dusk
Sun, 07-Sep 19:49 20:25 dusk dawn 06:02 06:37 100 % 01:26 all night
Mon, 08-Sep 19:47 20:22 dusk dawn 06:04 06:39 98 % 02:14 all night
Tue, 09-Sep 19:44 20:20 dusk dawn 06:06 06:41 93 % 03:04 all night
Wed, 10-Sep 19:42 20:17 20:20 dawn 06:07 06:42 86 % 03:56 before dawn
Thu, 11-Sep 19:40 20:15 20:36 dawn 06:09 06:44 77 % 04:51 before dawn
Fri, 12-Sep 19:37 20:12 21:00 dawn 06:11 06:46 67 % 05:50
Sat, 13-Sep 19:35 20:10 21:35 dawn 06:13 06:48 56 % 06:52
Sun, 14-Sep 19:32 20:07 22:27 dawn 06:14 06:49 44 % 07:54
Mon, 15-Sep 19:30 20:05 23:38 dawn 06:16 06:51 33 % 08:54
Tue, 16-Sep 19:28 20:02 01:01 dawn 06:18 06:53 24 % 09:49
Wed, 17-Sep 19:25 20:00 02:26 dawn 06:20 06:54 15 % 10:41
Thu, 18-Sep 19:23 19:57 03:50 dawn 06:21 06:56 8 % 11:28
Fri, 19-Sep 19:20 19:55 06:23 06:58 4 %
Sat, 20-Sep 19:18 19:52 06:25 06:59 1 % 12:12
Sun, 21-Sep 19:16 19:50 06:27 07:01 0 % 12:53
Mon, 22-Sep 19:13 19:47 06:28 07:03 1 % 13:34
Tue, 23-Sep 19:11 19:45 06:30 07:05 4 % 14:15
Wed, 24-Sep 19:08 19:43 06:32 07:06 9 % 14:56
Thu, 25-Sep 19:06 19:40 dusk 19:43 06:34 07:08 15 % 15:40
Fri, 26-Sep 19:04 19:38 dusk 20:02 06:35 07:10 23 % 16:26
Sat, 27-Sep 19:01 19:35 dusk 20:29 06:37 07:12 31 % 17:15
Sun, 28-Sep 18:59 19:33 dusk 21:07 06:39 07:13 40 % 18:06
Mon, 29-Sep 18:56 19:31 dusk 22:02 06:41 07:15 50 % 18:59
Tue, 30-Sep 18:54 19:28 dusk 23:11 06:42 07:17 60 % 19:52
Wed, 01-Oct 18:52 19:26 dusk 00:31 06:44 07:18 69 % 20:44
Thu, 02-Oct 18:49 19:23 dusk 01:56 06:46 07:20 79 % 21:35 after dusk
Fri, 03-Oct 18:47 19:21 dusk 03:22 06:48 07:22 87 % 22:24 after dusk
Sat, 04-Oct 18:45 19:19 dusk 04:50 06:49 07:24 93 % 23:13 after dusk
Sun, 05-Oct 18:42 19:16 dusk 06:19 06:51 07:25 98 % 00:02 after dusk
Mon, 06-Oct 18:40 19:14 dusk dawn 06:53 07:27 100 % 00:51 all night
Tue, 07-Oct 18:37 19:12 dusk dawn 06:54 07:29 99 % 01:44 all night
Wed, 08-Oct 18:35 19:10 dusk dawn 06:56 07:31 95 % 02:39 all night
Thu, 09-Oct 18:33 19:07 19:02 dawn 06:58 07:33 89 % 03:39 before dawn
Fri, 10-Oct 18:31 19:05 19:33 dawn 07:00 07:34 80 % 04:42 before dawn
Sat, 11-Oct 18:28 19:03 20:20 dawn 07:01 07:36 70 % 05:46
Sun, 12-Oct 18:26 19:01 21:27 dawn 07:03 07:38 59 % 06:48
Mon, 13-Oct 18:24 18:58 22:48 dawn 07:05 07:40 48 % 07:46
Tue, 14-Oct 18:21 18:56 00:14 dawn 07:07 07:42 37 % 08:38
Wed, 15-Oct 18:19 18:54 01:38 dawn 07:08 07:43 27 % 09:26
Thu, 16-Oct 18:17 18:52 02:58 dawn 07:10 07:45 19 % 10:10
Fri, 17-Oct 18:15 18:50 04:15 dawn 07:12 07:47 12 % 10:52
Sat, 18-Oct 18:13 18:48 05:29 dawn 07:14 07:49 6 % 11:32
Sun, 19-Oct 18:10 18:45 07:15 07:51 2 %
Mon, 20-Oct 18:08 18:43 07:17 07:52 0 % 12:13
Tue, 21-Oct 18:06 18:41 07:19 07:54 0 % 12:54
Wed, 22-Oct 18:04 18:39 07:21 07:56 2 % 13:37
Thu, 23-Oct 18:02 18:37 07:22 07:58 5 % 14:22
Fri, 24-Oct 18:00 18:35 dusk dusk 07:24 08:00 10 % 15:10
Sat, 25-Oct 17:58 18:33 dusk 19:06 06:26 07:02 17 % 16:00
Sun, 26-Oct 16:56 17:31 dusk 18:54 06:28 07:04 25 % 15:52
Mon, 27-Oct 16:54 17:29 dusk 19:57 06:29 07:05 34 % 16:44
Tue, 28-Oct 16:52 17:27 dusk 21:11 06:31 07:07 43 % 17:35
Wed, 29-Oct 16:50 17:26 dusk 22:32 06:33 07:09 53 % 18:25
Thu, 30-Oct 16:48 17:24 dusk 23:55 06:35 07:11 64 % 19:14
Fri, 31-Oct 16:46 17:22 dusk 01:19 06:36 07:13 74 % 20:01
Sat, 01-Nov 16:44 17:20 dusk 02:45 06:38 07:15 83 % 20:48 after dusk
Sun, 02-Nov 16:42 17:18 dusk 04:13 06:40 07:17 91 % 21:36 after dusk
Mon, 03-Nov 16:40 17:17 dusk 05:46 06:42 07:18 96 % 22:27 after dusk
Tue, 04-Nov 16:38 17:15 dusk dawn 06:43 07:20 99 % 23:21 all night
Wed, 05-Nov 16:36 17:13 dusk dawn 06:45 07:22 100 % 00:20 all night
Thu, 06-Nov 16:35 17:12 dusk dawn 06:47 07:24 97 % 01:23 all night
Fri, 07-Nov 16:33 17:10 dusk dawn 06:48 07:26 91 % 02:30 all night

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.