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Llangynidr to Bwlch or Circular Walk

Up a tight valley to the Chartist Cave in the limestone uplands of Mynydd Llangynidr, return along the rim of the Crawnon Valley.

Brecon Beacons Circular

Hiking weather forecast

Brecon Beacons hourly weather (Visual Crossing)

Sunset: 21:27. Dusk: 22:12. Dark: 23:19. Moon 82% (23:17 to dawn)

Updated: Mon, 14-Jul at 23:39

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 0% 0% 0% 0% 100% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Tue, 15 Jul 48% 48% 90% 90% 90% 90% 90% 90% 87% 87% 87% 87% 87% 87% 52% 52%
Wed, 16 Jul 0% 0% 0% 0% 0% 0% 0% 0% 13% 13% 13% 13% 13% 13% 26% 26%
Thu, 17 Jul 26% 26% 🌫 29% 🌫 29% 🌫 29% 29% 29% 29% 42% 42% 42% 42% 42% 42% 16% 16%
Fri, 18 Jul 23% 23% 45% 45% 45% 45% 45% 45% 71% 71% 71% 71% 71% 71% 42% 42%
Sat, 19 Jul 19% 19% 42% 42% 42% 42% 42% 42% 74% 74% 74% 74% 74% 74% 42% 42%
Sun, 20 Jul 19% 19% 42% 42% 42% 42% 42% 42% 61% 61% 61% 61% 61% 61% 39% 39%
Mon, 21 Jul 🌫 26% 🌫 26% 32% 32% 32% 32% 32% 32% 39% 39% 39% 39% 39% 39% 36% 36%
Tue, 22 Jul 23% 23% 26% 26% 26% 26% 26% 26% 29% 29% 29% 29% 29% 29% 16% 16%
Wed, 23 Jul 16% 16% 29% 29% 29% 29% 29% 29% 36% 36% 36% 36% 36% 36% 23% 23%
Thu, 24 Jul 16% 16% 23% 23% 23% 23% 23% 23% 29% 29% 29% 29% 29% 29% 16% 16%
Fri, 25 Jul 0% 0% 10% 10% 10% 10% 10% 10% 23% 23% 23% 23% 23% 23% 19% 19%
Sat, 26 Jul 13% 13% 26% 26% 26% 26% 26% 26% 23% 23% 23% 23% 23% 23% 16% 16%
Sun, 27 Jul 16% 16% 29% 29% 29% 29% 29% 29% 36% 36% 36% 36% 36% 36% 36% 36%
Mon, 28 Jul 26% 26% 16% 16% 16% 16% 16% 16% 23% 23% 🌫 23% 23% 23% 23% 26% 26%

Percentages are the chance of rain.

Weather data by Visual Crossing

Brecon Beacons hourly weather (Open Meteo)

Sunset: 21:27. Dusk: 22:12. Dark: 23:19. Moon 82% (23:17 to dawn)

Updated: Mon, 14-Jul at 23:37

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Tue, 15 Jul 77% 94% 98% 96% 94% 96% 98% 100% 100% 100% 100% 100% 100% 100% 100% 99%
Wed, 16 Jul 12% 2% 0% 2% 4% 3% 2% 2% 3% 4% 6% 9% 13% 16% 18% 18%
Thu, 17 Jul 42% 49% 53% 57% 61% 66% 71% 76% 82% 87% 88% 83% 73% 63% 52% 39%
Fri, 18 Jul 31% 33% 36% 40% 45% 51% 57% 61% 63% 64% 63% 59% 53% 47% 40% 32%
Sat, 19 Jul 21% 24% 30% 38% 45% 51% 57% 63% 72% 81% 86% 85% 81% 76% 73% 69%
Sun, 20 Jul 41% 41% 46% 55% 63% 69% 75% 80% 85% 89% 92% 94% 95% 94% 90% 83%
Mon, 21 Jul 42% 43% 46% 51% 56% 61% 67% 71% 74% 76% 77% 78% 77% 75% 70% 62%
Tue, 22 Jul 35% 37% 40% 43% 47% 51% 54% 57% 58% 59% 59% 58% 57% 55% 51% 46%
Wed, 23 Jul 43% 47% 51% 55% 59% 62% 65% 67% 66% 64% 62% 59% 56% 53% 50% 47%
Thu, 24 Jul 38% 39% 41% 44% 46% 48% 50% 51% 50% 48% 46% 43% 40% 37% 33% 29%
Fri, 25 Jul 21% 24% 28% 33% 38% 42% 46% 49% 50% 49% 47% 45% 42% 39% 35% 30%
Sat, 26 Jul 24% 27% 31% 34% 38% 42% 45% 47% 47% 46% 45% 43% 41% 39% 37% 35%
Sun, 27 Jul 35% 37% 40% 43% 45% 47% 49% 49% 48% 45% 42% 39% 36% 33% 31% 29%
Mon, 28 Jul 20% 22% 26% 32% 38% 44% 49% 53% 55% 55% 54% 53% 50% 47% 43% 37%
Tue, 29 Jul 22% 25% 29% 35% 40% 46% 52% 55% 56% 56% 31% 30% 28% 26% 23% 19%

Percentages are the chance of rain.

Weather data by Open-Meteo

Brecon Beacons hourly weather (Met Office)

Sunset: 21:27. Dusk: 22:12. Dark: 23:19. Moon 82% (23:17 to dawn)

Updated: Mon, 14-Jul at 20:00

06 09 12 15 18 21
Today 34%
Tue, 15 Jul 86% 89% 94% 94% 41% 17%
Wed, 16 Jul 8% 1% 8% 8% 13% 12%
Thu, 17 Jul 🌫 25% 33% 36% 33% 12% 11%
Fri, 18 Jul 44% 15% 15% 8% 7% 7%
Sat, 19 Jul 41% 32% 15% 39% 33% 13%
Sun, 20 Jul 17% 50% 59% 63% 41% 13%
Mon, 21 Jul 43% 44% 37% 37% 36%

Percentages are the chance of rain.

Weather data by Met Office

Regional weather (Met Office)

Sunset: 21:27. Dusk: 22:12. Dark: 23:19. Moon 82% (23:17 to dawn)

Updated: Mon, 14-Jul at 23:38

Wales

Largely dry this evening, but turning wet and windy tomorrow.

  • A largely dry evening with late spells of sunshine, although a few showers may continue to affect western areas
  • Thicker cloud and outbreaks of rain will then arrive into the west by dawn
  • A fresher night than of late
  • Minimum Temperature 8C

Tuesday:

  • An unsettled start with heavy spells of thundery rain, especially in the north
  • Scattered heavy showers following behind with brighter intervals developing through the afternoon
  • Windy and cooler
  • Maximum Temperature 21C

Outlook for Wednesday to Friday:

  • Largely fine on Wednesday with sunny spells
  • An increase risk of showers on Thursday and Friday although still with some sunny intervals
  • Feeling warmer again

UK Day 6-7 and week 2

  • Weather conditions are expected to be changeable overall across the UK during this forecast period
  • Unsettled, wet and in places windy weather is likely this coming weekend, followed by something a bit more mixed
  • Any more settled spells could persist for a few days at a time and are likely to be accompanied by plenty of sunshine, but interspersed with these will be cloudier, more unsettled intervals which will bring some showers or longer spells of persistent rainfall
  • Some of the rainfall is likely to be heavy in places, with a risk of thunderstorms at times
  • Temperatures are expected to be above normal for the majority of the UK throughout this period, although the chance of further hot spells has reduced somewhat in the latest forecast

UK Week 3 and 4

  • Conditions are expected to remain changeable across the UK during this period, although there are hints of a greater chance of longer, settled spells now emerging in the latest forecast
  • Nonetheless any more prolonged periods of fine and dry weather will still be interspersed with more unsettled intervals bringing showers or longer spells of rain, these heavy at times
  • Temperatures are expected to be above normal and it could be hot at times in parts of the south and east

Weather data by Met Office

Brecon Beacons mountain weather forecast (Met Office)

Sunset: 21:27. Dusk: 22:12. Dark: 23:19. Moon 82% (23:17 to dawn)

Updated: Mon, 14-Jul at 15:28

Specialist mountain forecast: MWIS

Evening
Mon, 14-Jul

Isolated showers linger over southern parts of the park, with some decent sunny spells heading into the evening, gradually becoming cloudier from the west. Breezy.

Tomorow
Tue, 15-Jul

Cloudy with heavy rain, quickly followed by heavy showers and a risk of thunder. Strong to gale-force winds on exposed summits.

A band of cloud and persistent heavy rain spreads over the park during the morning, driven horizontally by the gale force winds. This will be shortly followed by frequent showers, often heavy with a risk of thunder and possibly some large hail.

Low risk Storm Force Winds
Medium risk Gales Poor Visibility Thunderstorms Heavy Persistent Rain
Medium risk Gales Poor Visibility Thunderstorms Heavy Persistent Rain
Medium risk Gales Poor Visibility Thunderstorms Heavy Persistent Rain
Medium risk Gales Poor Visibility Thunderstorms Heavy Persistent Rain
Chance of Cloud free tops Less than 10% throughout.
Ground conditions Please see - https://yrwyddfa.live/
Visibility Overcast cloud is expected during the morning with bases obscuring hills above 100-200m. Visibility is expected to be poor or very poor in cloud and in any heavy downpours. Come the afternoon, there may be a few more breaks in the cloud cover, with bases expected to rise a touch, to around 300-400m. Although this may fall again in heavy showers.
Confidence Good confidence for an unsettled day on Tuesday, with heavy rain and showers, lower for rainfall accumulations and extent of thunder risk.
View A tough day in the hills, with gusts reaching 60mph creating hazardous walking conditions and a real risk of being knocked off balance. Navigation may prove difficult, as strong winds combine with low cloud, heavy rain, and the potential for thunder and hail, making it easy for walkers to become disoriented.

Conditions on the tops at 900m

Time Weather Rain Temp Wind Freezing
00:00 Light rain 60% 8 36 2000m
03:00 Light rain 60% 8 38 2200m
06:00 Heavy Rain 80% 9 42 2400m
09:00 Heavy Rain 90% 9 43 2400m
12:00 Heavy Rain >95% 9 39 2300m
15:00 Thundery showers 80% 10 34 2300m
18:00 Thundery showers 80% 10 32 2300m
21:00 Cloudy 20% 9 32 2400m
Wed, 16-Jul

A cloudy start to the day across the park, although remaining dry. Cloud will gradually begin to break up through the afternoon to see some decent sunny spells. Further cloud and rain will build in from the southwest by the evening.

Ice Well above summits.
Visibility Scattered to broken cloud across the park during the morning, with bases obscuring hills above 500-600m. By the afternoon, cloud will lift and break, with few amounts, well above summits. Sunshine, will turn hazy towards the end of the day, as cloud builds into the evening. Visibilities generally very good, with clear views of distant hills.
Wind Westerly winds 15mph gusting up to 25mph on summits.
Temp (tops) Plus 07 Celsius becoming Plus 12 Celsius. at 800m
Thu, 17-Jul

Often cloudy, with some brighter spells possible. Isolated showers, perhaps heavy at times. Fresh to strong south-southwesterly winds.

Fri, 18-Jul

A cloudy start, with sunny spells developing, slight isolated showers possible. Moderate southwesterly winds.

Sat, 19-Jul

Sunny spells and showers. Fresh southwesterly winds.

Weather data by Met Office

Brecon Beacons Air Quality (Pollen and UV)

Updated: Mon, 14-Jul at 23:37

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   grass mugwort
Tue, 15 Jul air q   grass mugwort air q   grass mugwort air q   grass   air q   grass   air q       air q       air q UV     air q UV   mugwort air q UV   mugwort air q UV     air q UV     air q UV     air q UV     air q UV     air q UV     air q UV grass   air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q   grass mugwort air q   grass mugwort air q   grass mugwort
Wed, 16 Jul air q   grass   air q   grass   air q   grass   air q   grass   air q   grass   air q   grass   air q UV grass   air q UV grass   air q UV grass   air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q   grass mugwort air q   grass mugwort air q   grass mugwort
Thu, 17 Jul air q   grass mugwort air q   grass mugwort air q   grass mugwort air q   grass mugwort air q     mugwort air q     mugwort air q UV     air q UV     air q UV     air q UV     air q UV   mugwort air q UV   mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q UV grass mugwort air q   grass mugwort air q   grass mugwort air q   grass mugwort

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

Brecon Beacons Visibility

Updated: Mon, 14-Jul at 23:37

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Tue, 15 Jul 2km 2km 2km 3km 2km 2km 2km 2km 1km 1km 1km 0km 1km 2km 2km 2km
Wed, 16 Jul 2km 2km 2km 4km 10km 14km 18km 23km 24km 24km 21km 21km 19km 14km 14km 9km
Thu, 17 Jul 11km 1km 0km 6km 11km 18km 24km 15km 8km 9km 20km 33km 28km 19km 17km 8km
Fri, 18 Jul 3km 2km 13km 24km 35km 41km 47km 53km 58km 62km 66km 67km 68km 69km 55km 41km
Sat, 19 Jul 10km 8km 9km 9km 10km 20km 30km 40km 31km 23km 14km 13km 12km 10km 24km 24km

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

Brecon Beacons daylight

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

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.

Brecon Beacons moonlight

Moonlight chart for walking at night.

Night of Sunset Dusk Moon Visible Dawn Sunrise Phase % Full Max. Ht. Night Walk
Mon, 14-Jul 21:27 22:12 23:17 dawn 04:27 05:12 82 % 04:49 before dawn
Tue, 15-Jul 21:26 22:11 23:29 dawn 04:28 05:13 73 % 05:35
Wed, 16-Jul 21:25 22:10 23:40 dawn 04:30 05:15 62 % 06:22
Thu, 17-Jul 21:24 22:08 23:53 dawn 04:31 05:16 51 % 07:11
Fri, 18-Jul 21:23 22:07 00:09 dawn 04:33 05:17 39 % 08:04
Sat, 19-Jul 21:21 22:05 00:30 dawn 04:34 05:18 29 % 09:01
Sun, 20-Jul 21:20 22:04 01:02 dawn 04:36 05:20 19 % 10:02
Mon, 21-Jul 21:19 22:02 01:49 dawn 04:38 05:21 11 % 11:05
Tue, 22-Jul 21:18 22:01 04:39 05:23 5 %
Wed, 23-Jul 21:16 21:59 04:17 dawn 04:41 05:24 1 % 12:08
Thu, 24-Jul 21:15 21:58 04:43 05:25 0 % 13:07
Fri, 25-Jul 21:13 21:56 dusk 21:58 04:44 05:27 2 % 14:02
Sat, 26-Jul 21:12 21:54 dusk 22:13 04:46 05:28 5 % 14:52
Sun, 27-Jul 21:10 21:52 dusk 22:25 04:48 05:30 11 % 15:37
Mon, 28-Jul 21:09 21:51 dusk 22:35 04:49 05:31 18 % 16:19
Tue, 29-Jul 21:07 21:49 dusk 22:44 04:51 05:33 26 % 17:00
Wed, 30-Jul 21:06 21:47 dusk 22:54 04:53 05:34 35 % 17:40
Thu, 31-Jul 21:04 21:45 dusk 23:05 04:55 05:36 45 % 18:22
Fri, 01-Aug 21:02 21:43 dusk 23:19 04:56 05:37 54 % 19:05
Sat, 02-Aug 21:01 21:41 dusk 23:38 04:58 05:39 64 % 19:50
Sun, 03-Aug 20:59 21:39 dusk 00:05 05:00 05:40 72 % 20:39
Mon, 04-Aug 20:57 21:37 dusk 00:43 05:02 05:42 81 % 21:31 after dusk
Tue, 05-Aug 20:55 21:35 dusk 01:37 05:04 05:44 88 % 22:25 after dusk
Wed, 06-Aug 20:54 21:33 dusk 02:45 05:05 05:45 94 % 23:20 after dusk
Thu, 07-Aug 20:52 21:31 dusk 04:05 05:07 05:47 98 % 00:14 after dusk
Fri, 08-Aug 20:50 21:29 dusk dawn 05:09 05:48 100 % 01:06 all night
Sat, 09-Aug 20:48 21:27 dusk dawn 05:11 05:50 99 % 01:56 all night
Sun, 10-Aug 20:46 21:25 dusk dawn 05:13 05:52 97 % 02:45 all night
Mon, 11-Aug 20:44 21:23 21:37 dawn 05:15 05:53 92 % 03:32 before dawn
Tue, 12-Aug 20:42 21:21 21:48 dawn 05:16 05:55 84 % 04:19 before dawn
Wed, 13-Aug 20:40 21:19 22:00 dawn 05:18 05:56 75 % 05:08 before dawn
Thu, 14-Aug 20:38 21:16 22:15 dawn 05:20 05:58 64 % 06:00
Fri, 15-Aug 20:36 21:14 22:34 dawn 05:22 06:00 53 % 06:55
Sat, 16-Aug 20:34 21:12 23:02 dawn 05:24 06:01 42 % 07:54
Sun, 17-Aug 20:32 21:10 23:43 dawn 05:25 06:03 31 % 08:56
Mon, 18-Aug 20:30 21:07 00:41 dawn 05:27 06:04 21 % 09:58
Tue, 19-Aug 20:28 21:05 01:57 dawn 05:29 06:06 12 % 10:57
Wed, 20-Aug 20:26 21:03 03:21 dawn 05:31 06:08 6 % 11:53
Thu, 21-Aug 20:24 21:01 05:33 06:09 2 %
Fri, 22-Aug 20:22 20:58 05:34 06:11 0 % 12:43
Sat, 23-Aug 20:20 20:56 05:36 06:13 1 % 13:30
Sun, 24-Aug 20:18 20:54 05:38 06:14 3 % 14:13
Mon, 25-Aug 20:15 20:51 dusk 20:52 05:40 06:16 7 % 14:55
Tue, 26-Aug 20:13 20:49 dusk 21:01 05:41 06:17 13 % 15:36
Wed, 27-Aug 20:11 20:47 dusk 21:12 05:43 06:19 21 % 16:17
Thu, 28-Aug 20:09 20:44 dusk 21:25 05:45 06:21 29 % 16:59
Fri, 29-Aug 20:07 20:42 dusk 21:41 05:47 06:22 38 % 17:43
Sat, 30-Aug 20:04 20:40 dusk 22:04 05:49 06:24 47 % 18:31
Sun, 31-Aug 20:02 20:37 dusk 22:36 05:50 06:26 57 % 19:21
Mon, 01-Sep 20:00 20:35 dusk 23:23 05:52 06:27 66 % 20:13
Tue, 02-Sep 19:58 20:33 dusk 00:24 05:54 06:29 75 % 21:07 after dusk
Wed, 03-Sep 19:55 20:30 dusk 01:39 05:55 06:30 83 % 22:01 after dusk
Thu, 04-Sep 19:53 20:28 dusk 03:02 05:57 06:32 91 % 22:54 after dusk
Fri, 05-Sep 19:51 20:25 dusk 04:28 05:59 06:34 96 % 23:46 after dusk
Sat, 06-Sep 19:48 20:23 dusk 05:55 06:01 06:35 99 % 00:35 after dusk
Sun, 07-Sep 19:46 20:21 dusk dawn 06:02 06:37 100 % 01:24 all night
Mon, 08-Sep 19:44 20:18 dusk dawn 06:04 06:38 98 % 02:12 all night
Tue, 09-Sep 19:42 20:16 dusk dawn 06:06 06:40 93 % 03:02 all night
Wed, 10-Sep 19:39 20:13 20:21 dawn 06:07 06:42 86 % 03:54 before dawn
Thu, 11-Sep 19:37 20:11 20:39 dawn 06:09 06:43 77 % 04:50 before dawn
Fri, 12-Sep 19:35 20:09 21:04 dawn 06:11 06:45 67 % 05:49
Sat, 13-Sep 19:32 20:06 21:41 dawn 06:13 06:47 56 % 06:50
Sun, 14-Sep 19:30 20:04 22:34 dawn 06:14 06:48 44 % 07:52
Mon, 15-Sep 19:28 20:01 23:44 dawn 06:16 06:50 33 % 08:52
Tue, 16-Sep 19:25 19:59 01:05 dawn 06:18 06:51 24 % 09:48
Wed, 17-Sep 19:23 19:57 02:30 dawn 06:19 06:53 15 % 10:39
Thu, 18-Sep 19:21 19:54 03:52 dawn 06:21 06:55 8 % 11:26
Fri, 19-Sep 19:18 19:52 06:23 06:56 4 %
Sat, 20-Sep 19:16 19:50 06:24 06:58 1 % 12:10
Sun, 21-Sep 19:14 19:47 06:26 07:00 0 % 12:51
Mon, 22-Sep 19:11 19:45 06:28 07:01 1 % 13:32
Tue, 23-Sep 19:09 19:42 06:29 07:03 4 % 14:13
Wed, 24-Sep 19:07 19:40 06:31 07:04 9 % 14:54
Thu, 25-Sep 19:04 19:38 dusk 19:47 06:33 07:06 15 % 15:38
Fri, 26-Sep 19:02 19:35 dusk 20:07 06:34 07:08 23 % 16:24
Sat, 27-Sep 19:00 19:33 dusk 20:35 06:36 07:09 31 % 17:13
Sun, 28-Sep 18:57 19:31 dusk 21:14 06:38 07:11 40 % 18:04
Mon, 29-Sep 18:55 19:28 dusk 22:09 06:39 07:13 50 % 18:57
Tue, 30-Sep 18:53 19:26 dusk 23:17 06:41 07:14 60 % 19:50
Wed, 01-Oct 18:50 19:24 dusk 00:35 06:43 07:16 69 % 20:42
Thu, 02-Oct 18:48 19:22 dusk 01:58 06:44 07:18 79 % 21:33 after dusk
Fri, 03-Oct 18:46 19:19 dusk 03:23 06:46 07:19 87 % 22:23 after dusk
Sat, 04-Oct 18:43 19:17 dusk 04:50 06:47 07:21 93 % 23:11 after dusk
Sun, 05-Oct 18:41 19:15 dusk 06:17 06:49 07:23 98 % 00:00 after dusk
Mon, 06-Oct 18:39 19:12 dusk dawn 06:51 07:24 100 % 00:49 all night
Tue, 07-Oct 18:37 19:10 dusk dawn 06:52 07:26 99 % 01:42 all night
Wed, 08-Oct 18:34 19:08 dusk dawn 06:54 07:28 95 % 02:37 all night
Thu, 09-Oct 18:32 19:06 19:06 dawn 06:56 07:30 89 % 03:37 before dawn
Fri, 10-Oct 18:30 19:04 19:39 dawn 06:57 07:31 80 % 04:40 before dawn
Sat, 11-Oct 18:28 19:01 20:27 dawn 06:59 07:33 70 % 05:44
Sun, 12-Oct 18:26 18:59 21:34 dawn 07:01 07:35 59 % 06:46
Mon, 13-Oct 18:23 18:57 22:53 dawn 07:02 07:36 48 % 07:44
Tue, 14-Oct 18:21 18:55 00:17 dawn 07:04 07:38 37 % 08:36
Wed, 15-Oct 18:19 18:53 01:40 dawn 07:06 07:40 27 % 09:24
Thu, 16-Oct 18:17 18:51 02:59 dawn 07:07 07:42 19 % 10:09
Fri, 17-Oct 18:15 18:49 04:14 dawn 07:09 07:43 12 % 10:50
Sat, 18-Oct 18:13 18:47 05:27 dawn 07:11 07:45 6 % 11:31
Sun, 19-Oct 18:10 18:45 07:12 07:47 2 %
Mon, 20-Oct 18:08 18:43 07:14 07:49 0 % 12:11
Tue, 21-Oct 18:06 18:41 07:16 07:50 0 % 12:52
Wed, 22-Oct 18:04 18:39 07:17 07:52 2 % 13:35
Thu, 23-Oct 18:02 18:37 07:19 07:54 5 % 14:20
Fri, 24-Oct 18:00 18:35 dusk 18:37 07:21 07:56 10 % 15:08
Sat, 25-Oct 17:58 18:33 dusk 19:12 06:23 06:57 17 % 15:58
Sun, 26-Oct 16:56 17:31 dusk 19:01 06:24 06:59 25 % 15:50
Mon, 27-Oct 16:54 17:29 dusk 20:03 06:26 07:01 34 % 16:42
Tue, 28-Oct 16:52 17:27 dusk 21:16 06:28 07:03 43 % 17:33
Wed, 29-Oct 16:50 17:26 dusk 22:35 06:29 07:05 53 % 18:23
Thu, 30-Oct 16:49 17:24 dusk 23:57 06:31 07:06 64 % 19:12
Fri, 31-Oct 16:47 17:22 dusk 01:19 06:33 07:08 74 % 19:59
Sat, 01-Nov 16:45 17:20 dusk 02:44 06:34 07:10 83 % 20:46 after dusk
Sun, 02-Nov 16:43 17:19 dusk 04:11 06:36 07:12 91 % 21:34 after dusk
Mon, 03-Nov 16:41 17:17 dusk 05:42 06:38 07:14 96 % 22:25 after dusk
Tue, 04-Nov 16:39 17:15 dusk dawn 06:39 07:15 99 % 23:19 all night
Wed, 05-Nov 16:38 17:14 dusk dawn 06:41 07:17 100 % 00:18 all night
Thu, 06-Nov 16:36 17:12 dusk dawn 06:43 07:19 97 % 01:21 all night
Fri, 07-Nov 16:34 17:11 17:16 dawn 06:44 07:21 91 % 02:28 before dawn
Sat, 08-Nov 16:33 17:09 18:17 dawn 06:46 07:22 83 % 03:33 before dawn
Sun, 09-Nov 16:31 17:08 19:35 dawn 06:48 07:24 74 % 04:35
Mon, 10-Nov 16:30 17:06 21:01 dawn 06:49 07:26 63 % 05:31
Tue, 11-Nov 16:28 17:05 22:27 dawn 06:51 07:28 53 % 06:22
Wed, 12-Nov 16:27 17:03 23:48 dawn 06:52 07:30 42 % 07:07
Thu, 13-Nov 16:25 17:02 01:04 dawn 06:54 07:31 32 % 07:50
Fri, 14-Nov 16:24 17:01 02:18 dawn 06:56 07:33 23 % 08:30
Sat, 15-Nov 16:22 17:00 03:30 dawn 06:57 07:35 16 % 09:11
Sun, 16-Nov 16:21 16:58 04:41 dawn 06:59 07:36 9 % 09:51
Mon, 17-Nov 16:20 16:57 05:54 dawn 07:00 07:38 5 % 10:33
Tue, 18-Nov 16:18 16:56 07:02 07:40 2 % 11:17
Wed, 19-Nov 16:17 16:55 07:03 07:42 0 %
Thu, 20-Nov 16:16 16:54 07:05 07:43 1 % 12:04
Fri, 21-Nov 16:15 16:53 07:06 07:45 3 % 12:54
Sat, 22-Nov 16:14 16:52 dusk 16:58 07:08 07:46 7 % 13:45
Sun, 23-Nov 16:13 16:51 dusk 17:56 07:09 07:48 12 % 14:37
Mon, 24-Nov 16:12 16:50 dusk 19:05 07:11 07:50 19 % 15:29
Tue, 25-Nov 16:11 16:49 dusk 20:21 07:12 07:51 28 % 16:19
Wed, 26-Nov 16:10 16:49 dusk 21:40 07:14 07:53 37 % 17:07
Thu, 27-Nov 16:09 16:48 dusk 23:00 07:15 07:54 47 % 17:53
Fri, 28-Nov 16:08 16:47 dusk 00:20 07:16 07:56 58 % 18:38
Sat, 29-Nov 16:07 16:46 dusk 01:42 07:18 07:57 68 % 19:24
Sun, 30-Nov 16:06 16:46 dusk 03:07 07:19 07:59 78 % 20:11 after dusk
Mon, 01-Dec 16:06 16:45 dusk 04:38 07:20 08:00 87 % 21:02 after dusk
Tue, 02-Dec 16:05 16:45 dusk 06:13 07:22 08:01 94 % 21:57 after dusk
Wed, 03-Dec 16:05 16:44 dusk dawn 07:23 08:03 98 % 22:58 all night
Thu, 04-Dec 16:04 16:44 dusk dawn 07:24 08:04 100 % 00:03 all night
Fri, 05-Dec 16:04 16:44 dusk dawn 07:25 08:05 98 % 01:11 all night
Sat, 06-Dec 16:03 16:43 17:07 dawn 07:26 08:06 94 % 02:17 before dawn
Sun, 07-Dec 16:03 16:43 18:34 dawn 07:27 08:08 87 % 03:18 before dawn
Mon, 08-Dec 16:03 16:43 20:03 dawn 07:28 08:09 79 % 04:13 before dawn
Tue, 09-Dec 16:03 16:43 21:29 dawn 07:29 08:10 69 % 05:02
Wed, 10-Dec 16:02 16:43 22:50 dawn 07:30 08:11 59 % 05:47
Thu, 11-Dec 16:02 16:43 00:06 dawn 07:31 08:12 49 % 06:29
Fri, 12-Dec 16:02 16:43 01:19 dawn 07:32 08:13 39 % 07:09
Sat, 13-Dec 16:02 16:43 02:31 dawn 07:33 08:14 30 % 07:50
Sun, 14-Dec 16:02 16:43 03:43 dawn 07:34 08:15 22 % 08:31
Mon, 15-Dec 16:02 16:43 04:56 dawn 07:35 08:15 14 % 09:15
Tue, 16-Dec 16:03 16:43 06:10 dawn 07:35 08:16 8 % 10:01
Wed, 17-Dec 16:03 16:44 07:21 dawn 07:36 08:17 4 % 10:50
Thu, 18-Dec 16:03 16:44 07:37 08:17 1 % 11:41
Fri, 19-Dec 16:03 16:44 07:37 08:18 0 %
Sat, 20-Dec 16:04 16:45 07:38 08:19 1 % 12:33
Sun, 21-Dec 16:04 16:45 dusk 16:56 07:38 08:19 4 % 13:25
Mon, 22-Dec 16:05 16:46 dusk 18:11 07:39 08:19 8 % 14:16
Tue, 23-Dec 16:05 16:46 dusk 19:30 07:39 08:20 14 % 15:05
Wed, 24-Dec 16:06 16:47 dusk 20:48 07:39 08:20 22 % 15:51
Thu, 25-Dec 16:07 16:48 dusk 22:07 07:40 08:20 31 % 16:36
Fri, 26-Dec 16:08 16:48 dusk 23:26 07:40 08:21 41 % 17:20
Sat, 27-Dec 16:08 16:49 dusk 00:47 07:40 08:21 52 % 18:05
Sun, 28-Dec 16:09 16:50 dusk 02:12 07:40 08:21 63 % 18:52
Mon, 29-Dec 16:10 16:51 dusk 03:42 07:40 08:21 74 % 19:43
Tue, 30-Dec 16:11 16:52 dusk 05:15 07:40 08:21 84 % 20:39 after dusk
Wed, 31-Dec 16:12 16:53 dusk 06:45 07:40 08:21 91 % 21:40 after dusk
Thu, 01-Jan 16:13 16:54 dusk dawn 07:40 08:21 97 % 22:46 all night
Fri, 02-Jan 16:14 16:55 dusk dawn 07:40 08:20 100 % 23:53 all night
Sat, 03-Jan 16:15 16:56 dusk dawn 07:40 08:20 99 % 00:57 all night
Sun, 04-Jan 16:17 16:57 17:29 dawn 07:40 08:20 96 % 01:57 before dawn
Mon, 05-Jan 16:18 16:58 19:00 dawn 07:40 08:20 91 % 02:50 before dawn
Tue, 06-Jan 16:19 16:59 20:25 dawn 07:39 08:19 84 % 03:38 before dawn
Wed, 07-Jan 16:20 17:00 21:46 dawn 07:39 08:19 76 % 04:23 before dawn
Thu, 08-Jan 16:22 17:01 23:02 dawn 07:38 08:18 66 % 05:05
Fri, 09-Jan 16:23 17:03 00:16 dawn 07:38 08:18 57 % 05:46

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!

Brecon Beacons weather (Accuweather)

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