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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: 21:10. Dusk: 21:52. Moon 52% (23:33 to dawn)

Updated: Sat, 27-Jul at 11:28

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 0% 0% 0% 0% 0% 0% 77% 77% 58% 58% 58% 58% 58% 58% 0% 0%
Sun, 28 Jul 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Mon, 29 Jul 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Tue, 30 Jul 3% 3% 3% 3% 3% 3% 3% 3% 13% 13% 13% 13% 13% 13% 23% 23%
Wed, 31 Jul 19% 19% 10% 10% 10% 10% 10% 10% 19% 19% 19% 19% 19% 19% 32% 32%
Thu, 01 Aug 10% 10% 16% 16% 16% 16% 16% 16% 23% 23% 23% 23% 23% 23% 13% 13%
Fri, 02 Aug 7% 7% 29% 29% 🌫 29% 29% 29% 29% 36% 36% 36% 36% 36% 36% 32% 32%
Sat, 03 Aug 19% 19% 23% 23% 23% 23% 23% 23% 32% 32% 32% 32% 32% 🌫 32% 🌫 42% 🌫 42%
Sun, 04 Aug 32% 32% 52% 52% 52% 52% 52% 52% 55% 55% 55% 55% 55% 55% 52% 52%
Mon, 05 Aug 32% 32% 32% 32% 32% 32% 32% 32% 52% 52% 52% 52% 52% 52% 29% 29%
Tue, 06 Aug 10% 10% 26% 26% 26% 26% 26% 26% 32% 32% 32% 32% 32% 32% 32% 32%
Wed, 07 Aug 13% 13% 32% 32% 32% 32% 32% 32% 29% 29% 29% 29% 29% 29% 26% 26%
Thu, 08 Aug 13% 13% 19% 19% 19% 19% 19% 19% 26% 26% 26% 26% 26% 26% 19% 19%
Fri, 09 Aug 13% 13% 7% 7% 7% 7% 7% 7% 32% 32% 32% 32% 32% 32% 13% 13%
Sat, 10 Aug 0% 0% 16% 16% 16% 16% 16% 16% 16% 16% 16% 16% 16% 16% 19% 19%

Percentages are the chance of rain.

Weather data by Visual Crossing

Brecon Beacons hourly weather (Open Meteo)

Sunset: 21:10. Dusk: 21:52. Moon 52% (23:33 to dawn)

Updated: Sat, 27-Jul at 11:26

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 47% 66% 84% 80% 75% 71% 65% 58% 52% 35% 17%
Sun, 28 Jul 0% 0% 0% 0% 0% 0% 0% 0% 1% 2% 3% 2% 1% 0% 0% 0%
Mon, 29 Jul 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Tue, 30 Jul 3% 3% 3% 3% 3% 4% 5% 6% 6% 6% 6% 13% 19% 26% 26% 26%
Wed, 31 Jul 15% 13% 14% 15% 16% 18% 21% 23% 28% 34% 39% 40% 41% 42% 🌫 36% 🌫 29%
Thu, 01 Aug 13% 10% 11% 12% 13% 15% 17% 19% 23% 28% 32% 27% 21% 16% 16% 16%
Fri, 02 Aug 14% 16% 20% 25% 29% 32% 36% 39% 40% 41% 42% 38% 33% 29% 26% 22%
Sat, 03 Aug 32% 32% 36% 41% 45% 47% 50% 52% 52% 52% 52% 54% 56% 58% 50% 43%
Sun, 04 Aug 28% 26% 30% 35% 39% 41% 43% 45% 47% 50% 52% 52% 52% 52% 41% 30%
Mon, 05 Aug 13% 16% 24% 31% 39% 42% 45% 48% 51% 55% 58% 52% 45% 39% 34% 28%
Tue, 06 Aug 21% 23% 25% 27% 29% 31% 33% 35% 36% 37% 37% 37% 37% 35% 32% 27%
Wed, 07 Aug 5% 6% 9% 14% 18% 22% 26% 29% 29% 28% 26% 24% 21% 19% 17% 16%
Thu, 08 Aug 15% 16% 18% 21% 23% 25% 28% 29% 29% 29% 28% 27% 25% 23% 21% 18%
Fri, 09 Aug 12% 🌫 13% 14% 14% 15% 16% 17% 19% 21% 24% 27% 29% 31% 32% 31% 28%
Sat, 10 Aug 21% 23% 26% 29% 32% 35% 37% 39% 40% 40% 40% 39% 37% 35% 31% 27%
Sun, 11 Aug 11% 13% 16% 19% 🌫 22% 25% 29% 32% 35% 38% 40% 42% 43% 42% 39% 35%

Percentages are the chance of rain.

Weather data by Open-Meteo

Brecon Beacons hourly weather (Met Office)

Sunset: 21:10. Dusk: 21:52. Moon 52% (23:33 to dawn)

Updated: Sat, 27-Jul at 10:00

06 09 12 15 18 21
Today 55% 6% 6% 1%
Sun, 28 Jul 1% 0% 0% 0% 0% 0%
Mon, 29 Jul 1% 1% 1% 1% 2% 0%
Tue, 30 Jul 4% 4% 4% 5% 3% 2%
Wed, 31 Jul 2% 4% 10% 12% 31% 10%
Thu, 01 Aug 🌫 20% 9% 10% 10% 7% 6%
Fri, 02 Aug 43% 46% 13% 12% 10% 40%
Sat, 03 Aug 43% 16%

Percentages are the chance of rain.

Weather data by Met Office

Brecon Beacons weather (Met Office)

Updated: Sat, 27-Jul at 11:28

Heavy showers in places today, much warmer and sunnier tomorrow.

  • A band of rain will move into western coastal regions during this morning, this breaking up to leave scattered heavy and possibly thundery showers for this afternoon
  • Occasional warm sunny spells for some of us too
  • Maximum Temperature 20C

Tonight:

  • Any showers tending to become few and far between through this evening, leaving a dry night with clearing skies
  • Turning quite cool with patchy fog developing in the countryside
  • Minimum Temperature 7C

Sunday:

  • Any early fog lifting into low cloud and clearing by mid-morning
  • Thereafter a fine day with sunny periods and some fair weather cloud
  • Feeling much warmer with light winds
  • Maximum Temperature 25C

Outlook for Monday to Wednesday:

  • Staying generally fine and settled early next week
  • Bright skies and periods of strong sunshine, albeit with some wispy high cloud at times
  • Feeling very warm with winds staying light

UK Day 6-7 and week 2

  • The end of July and into early August will typically be dominated by a northwest-southeast split
  • North-western areas will probably experience rather breezy conditions with cloud and some outbreaks of rain or drizzle as weakening Atlantic frontal systems attempt to push eastwards across the UK
  • Toward the south and east it will tend to be drier and brighter much of the time, although there is also the small possibility of some thundery showers spreading in from the nearby continent at times
  • Temperatures during this period will probably be close to or slightly above average overall, with the likelihood of some very warm conditions developing in the south and perhaps parts of the east at times

UK Week 3 and 4

  • No single weather type is expected to dominate through this period
  • Some spells of dry, settled weather will likely alternate with wetter, cloudier conditions at times
  • The wettest conditions will probably be in the northwest, with the southeast tending to be driest
  • Through the period as a whole, warmer than average conditions are more probable, perhaps with some short-lived hot spells

Weather data by Met Office

Brecon Beacons mountain weather forecast (Met Office)

Sunset: 21:10. Dusk: 21:52. Moon 52% (23:33 to dawn)

Updated: Sat, 27-Jul at 03:49

Today
Sat, 27-Jul

Mostly dry at first but an increasing chance of heavy showers.

A bright start, with some early sunshine, but cloud amounts generally building with showers arriving from the west. These may be frequent for a few hours to give a more general spell of rain, especially in the west. Scattered heavy showers to begin the afternoon with a small chance of an isolated and brief thunderstorm. Showers easing by late afternoon to leave a mainly dry evening with increasing amounts of sunshine.

Low risk Poor Visibility Thunderstorms Heavy Persistent Rain
Low risk Poor Visibility Thunderstorms Heavy Persistent Rain
Low risk Poor Visibility Thunderstorms Heavy Persistent Rain
Medium risk Strong Sunlight
Chance of Cloud free tops 70%.
Visibility Periods of cloud above 700m during showers/rain, perhaps temporarily lowering to 600m during any more prolonged periods of precipitation. Generally very good visibility but occasionally moderate during rain/showers and poor/very poor in cloud. Locally very poor also in any heavier showers or thunderstorms.
Confidence High for the general story and an increasingly settled period. Moderate for the timing of the heaviest showers on Saturday.
View Some uncertainty still regarding the timing of the wettest period of weather on Saturday, but early morning and late afternoon onwards look like being the driest parts of the day. Whilst the chance of a thunderstorm is low, it's worth familiarising yourself with what to do if caught in a sudden thunderstorm on an exposed ridge or summit.

Conditions on the tops at 600m

Time Weather Rain Temp Wind Freezing
06:00 Sunny intervals 10% 10 10 2000m
09:00 Light rain showers 40% 12 12 2200m
12:00 Heavy rain showers 40% 12 13 2300m
15:00 Sunny intervals 10% 13 14 2300m
18:00 Sunny intervals 10% 13 10 2300m
21:00 Clear night <05% 11 7 2200m
Sun, 28-Jul

Early morning mist and fog in the valleys will clear by mid-morning at the latest to leave a fine day with plenty of sunshine. Some fair weather cloud bubbling up through the morning but this will be above the highest summits from mid-morning onwards. Feeling much warmer in the strong sunshine and with very high UV levels.

Ice Well above the summits.
Visibility Shallow mist and fog patches in the valleys may lift to give ribbons of cloud around 400-600m for a time in the early to middle part of the morning. Thereafter all cloud will be above the summits. Locally very poor visibility first thing in any fog and cloud, otherwise very good visibility with distant hills and landmarks visible.
Wind Southerly 15-20 mph.
Temp (tops) Plus 10 Celsius rising to plus 19 Celsius. at 600m
Mon, 29-Jul

Another dry, bright and warm day with sunny spells and areas of high-based cloud spreading across the National Park at times. Feeling warm with light southerly winds.

Tue, 30-Jul

Variable amounts of cloud but likely staying dry. Otherwise, sunny spells and gentle northerly winds and feeling very warm. Small chance of thundery showers overnight.

Wed, 31-Jul

Whilst details are still uncertain it will probably remain very warm and rather humid. There&apos;s the small risk of thundery showers but probably also some bright or sunny spells. Light easterly winds.

Weather data by Met Office

Brecon Beacons Air Quality (Pollen and UV)

Updated: Sat, 27-Jul at 11:26

Under construction.

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 grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort   grass mugwort   grass mugwort  
Sun, 28 Jul grass mugwort   grass mugwort   grass mugwort   grass mugwort   grass mugwort   grass mugwort   grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort   grass mugwort   grass mugwort  
Mon, 29 Jul grass mugwort   grass mugwort   grass mugwort   grass mugwort   grass mugwort   grass mugwort   grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort   grass mugwort   grass mugwort  
Tue, 30 Jul grass mugwort   grass mugwort   grass mugwort   grass mugwort   grass mugwort   grass mugwort   grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort UV grass mugwort   grass mugwort   grass mugwort  

Key

Low Medium High Very High

The UV forecast takes account of cloud cover.

These pollens are shown in season:

  • Grass
  • Alder and birch (trees)
  • Mugwort and Ragweed (weeds)

When out walking, wrap around glasses, a disposable or washable facemask, and being at the front of the group help.

Weather data by Open-Meteo and CAMS ENSEMBLE

Brecon Beacons daylight

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

Max Height, or solar noon, is when the sun is highest in the sky.

Day length is dusk to dawn. Times will vary if you are on a hill, or there is a hill on the horizon.

It should be light enough to read at dawn and dusk, so there will be enough light for walking for up to 30 minutes before dawn and after dusk.

Brecon Beacons moonlight

Moonlight chart for walking at night.

Night of Sunset Dusk Moon Visible Dawn Sunrise Phase % Full Max. Ht. Night Walk
Sat, 27-Jul 21:10 21:52 23:33 dawn 04:48 05:30 52 % 07:05
Sun, 28-Jul 21:08 21:50 23:50 dawn 04:50 05:32 41 % 07:57
Mon, 29-Jul 21:07 21:48 00:13 dawn 04:52 05:33 30 % 08:52
Tue, 30-Jul 21:05 21:47 00:46 dawn 04:53 05:35 21 % 09:49
Wed, 31-Jul 21:04 21:45 01:33 dawn 04:55 05:36 13 % 10:47
Thu, 01-Aug 21:02 21:43 02:35 dawn 04:57 05:38 7 % 11:44
Fri, 02-Aug 21:00 21:41 04:59 05:39 3 %
Sat, 03-Aug 20:59 21:39 05:00 05:41 0 % 12:37
Sun, 04-Aug 20:57 21:37 05:02 05:42 0 % 13:27
Mon, 05-Aug 20:55 21:35 dusk 21:42 05:04 05:44 2 % 14:12
Tue, 06-Aug 20:53 21:33 dusk 21:53 05:06 05:46 6 % 14:55
Wed, 07-Aug 20:51 21:31 dusk 22:03 05:08 05:47 11 % 15:35
Thu, 08-Aug 20:50 21:29 dusk 22:12 05:10 05:49 18 % 16:14
Fri, 09-Aug 20:48 21:27 dusk 22:21 05:11 05:50 26 % 16:53
Sat, 10-Aug 20:46 21:25 dusk 22:31 05:13 05:52 34 % 17:33
Sun, 11-Aug 20:44 21:22 dusk 22:44 05:15 05:54 44 % 18:15
Mon, 12-Aug 20:42 21:20 dusk 23:00 05:17 05:55 53 % 19:00
Tue, 13-Aug 20:40 21:18 dusk 23:24 05:19 05:57 63 % 19:50
Wed, 14-Aug 20:38 21:16 dusk 00:00 05:20 05:58 73 % 20:44
Thu, 15-Aug 20:36 21:14 dusk 00:52 05:22 06:00 82 % 21:41 after dusk
Fri, 16-Aug 20:34 21:11 dusk 02:04 05:24 06:02 89 % 22:42 after dusk
Sat, 17-Aug 20:32 21:09 dusk 03:31 05:26 06:03 95 % 23:42 after dusk
Sun, 18-Aug 20:30 21:07 dusk 05:04 05:28 06:05 99 % 00:40 after dusk
Mon, 19-Aug 20:28 21:05 dusk dawn 05:29 06:06 100 % 01:35 all night
Tue, 20-Aug 20:26 21:02 dusk dawn 05:31 06:08 98 % 02:27 all night
Wed, 21-Aug 20:23 21:00 21:14 dawn 05:33 06:10 93 % 03:18 before dawn
Thu, 22-Aug 20:21 20:58 21:26 dawn 05:35 06:11 86 % 04:08 before dawn
Fri, 23-Aug 20:19 20:55 21:39 dawn 05:37 06:13 76 % 04:59 before dawn
Sat, 24-Aug 20:17 20:53 21:55 dawn 05:38 06:15 66 % 05:52
Sun, 25-Aug 20:15 20:51 22:16 dawn 05:40 06:16 55 % 06:47
Mon, 26-Aug 20:13 20:48 22:46 dawn 05:42 06:18 44 % 07:45
Tue, 27-Aug 20:10 20:46 23:28 dawn 05:44 06:19 33 % 08:42
Wed, 28-Aug 20:08 20:44 00:25 dawn 05:45 06:21 24 % 09:39
Thu, 29-Aug 20:06 20:41 01:36 dawn 05:47 06:23 16 % 10:33
Fri, 30-Aug 20:04 20:39 02:52 dawn 05:49 06:24 9 % 11:23
Sat, 31-Aug 20:02 20:37 05:51 06:26 4 %
Sun, 01-Sep 19:59 20:34 05:25 dawn 05:52 06:28 1 % 12:10
Mon, 02-Sep 19:57 20:32 05:54 06:29 0 % 12:53
Tue, 03-Sep 19:55 20:30 05:56 06:31 1 % 13:33
Wed, 04-Sep 19:52 20:27 05:58 06:32 3 % 14:13
Thu, 05-Sep 19:50 20:25 dusk 20:29 05:59 06:34 7 % 14:51
Fri, 06-Sep 19:48 20:22 dusk 20:39 06:01 06:36 13 % 15:31
Sat, 07-Sep 19:46 20:20 dusk 20:50 06:03 06:37 20 % 16:12
Sun, 08-Sep 19:43 20:18 dusk 21:05 06:04 06:39 28 % 16:55
Mon, 09-Sep 19:41 20:15 dusk 21:25 06:06 06:40 37 % 17:42
Tue, 10-Sep 19:39 20:13 dusk 21:55 06:08 06:42 47 % 18:33
Wed, 11-Sep 19:36 20:10 dusk 22:38 06:10 06:44 57 % 19:28
Thu, 12-Sep 19:34 20:08 dusk 23:40 06:11 06:45 68 % 20:26
Fri, 13-Sep 19:32 20:06 dusk 00:58 06:13 06:47 77 % 21:25 after dusk
Sat, 14-Sep 19:29 20:03 dusk 02:28 06:15 06:49 86 % 22:22 after dusk
Sun, 15-Sep 19:27 20:01 dusk 04:01 06:16 06:50 93 % 23:18 after dusk
Mon, 16-Sep 19:25 19:58 dusk 05:35 06:18 06:52 98 % 00:12 after dusk
Tue, 17-Sep 19:22 19:56 dusk dawn 06:20 06:53 100 % 01:04 all night
Wed, 18-Sep 19:20 19:54 dusk dawn 06:21 06:55 99 % 01:55 all night
Thu, 19-Sep 19:18 19:51 dusk dawn 06:23 06:57 95 % 02:47 all night
Fri, 20-Sep 19:15 19:49 20:00 dawn 06:25 06:58 88 % 03:41 before dawn
Sat, 21-Sep 19:13 19:47 20:19 dawn 06:26 07:00 80 % 04:38 before dawn
Sun, 22-Sep 19:11 19:44 20:45 dawn 06:28 07:02 70 % 05:36
Mon, 23-Sep 19:08 19:42 21:24 dawn 06:30 07:03 59 % 06:36
Tue, 24-Sep 19:06 19:40 22:17 dawn 06:31 07:05 48 % 07:34
Wed, 25-Sep 19:04 19:37 23:25 dawn 06:33 07:07 38 % 08:29
Thu, 26-Sep 19:01 19:35 00:40 dawn 06:35 07:08 28 % 09:21
Fri, 27-Sep 18:59 19:32 01:58 dawn 06:36 07:10 20 % 10:08
Sat, 28-Sep 18:57 19:30 03:14 dawn 06:38 07:11 13 % 10:52
Sun, 29-Sep 18:54 19:28 04:27 dawn 06:40 07:13 7 % 11:33
Mon, 30-Sep 18:52 19:26 06:41 07:15 3 %
Tue, 01-Oct 18:50 19:23 06:43 07:16 1 % 12:12
Wed, 02-Oct 18:48 19:21 06:45 07:18 0 % 12:51
Thu, 03-Oct 18:45 19:19 06:46 07:20 1 % 13:30
Fri, 04-Oct 18:43 19:16 06:48 07:21 4 % 14:10
Sat, 05-Oct 18:41 19:14 06:50 07:23 9 % 14:53
Sun, 06-Oct 18:38 19:12 dusk 19:30 06:51 07:25 15 % 15:39
Mon, 07-Oct 18:36 19:10 dusk 19:56 06:53 07:27 23 % 16:28
Tue, 08-Oct 18:34 19:08 dusk 20:33 06:55 07:28 32 % 17:21
Wed, 09-Oct 18:32 19:05 dusk 21:26 06:56 07:30 41 % 18:16
Thu, 10-Oct 18:29 19:03 dusk 22:37 06:58 07:32 52 % 19:13
Fri, 11-Oct 18:27 19:01 dusk 23:59 07:00 07:33 63 % 20:09
Sat, 12-Oct 18:25 18:59 dusk 01:28 07:01 07:35 73 % 21:04
Sun, 13-Oct 18:23 18:57 dusk 02:59 07:03 07:37 83 % 21:57 after dusk
Mon, 14-Oct 18:21 18:55 dusk 04:30 07:05 07:39 91 % 22:48 after dusk
Tue, 15-Oct 18:18 18:52 dusk 06:02 07:06 07:40 97 % 23:39 after dusk
Wed, 16-Oct 18:16 18:50 dusk dawn 07:08 07:42 100 % 00:31 all night
Thu, 17-Oct 18:14 18:48 dusk dawn 07:10 07:44 100 % 01:24 all night
Fri, 18-Oct 18:12 18:46 dusk dawn 07:11 07:46 97 % 02:21 all night
Sat, 19-Oct 18:10 18:44 18:44 dawn 07:13 07:47 91 % 03:21 before dawn
Sun, 20-Oct 18:08 18:42 19:17 dawn 07:15 07:49 83 % 04:22 before dawn
Mon, 21-Oct 18:06 18:40 20:06 dawn 07:16 07:51 74 % 05:23
Tue, 22-Oct 18:04 18:38 21:10 dawn 07:18 07:53 64 % 06:22
Wed, 23-Oct 18:02 18:36 22:26 dawn 07:20 07:54 54 % 07:16
Thu, 24-Oct 18:00 18:34 23:44 dawn 07:21 07:56 44 % 08:05
Fri, 25-Oct 17:58 18:33 01:02 dawn 07:23 07:58 34 % 08:50
Sat, 26-Oct 17:56 18:31 01:16 dawn 06:25 07:00 25 % 08:32
Sun, 27-Oct 16:54 17:29 02:28 dawn 06:26 07:01 17 % 09:12
Mon, 28-Oct 16:52 17:27 03:38 dawn 06:28 07:03 11 % 09:51
Tue, 29-Oct 16:50 17:25 04:48 dawn 06:30 07:05 6 % 10:29
Wed, 30-Oct 16:48 17:23 05:59 dawn 06:31 07:07 2 % 11:09
Thu, 31-Oct 16:46 17:22 06:33 07:09 0 % 11:51
Fri, 01-Nov 16:44 17:20 06:35 07:10 0 %
Sat, 02-Nov 16:43 17:18 06:36 07:12 2 % 12:37
Sun, 03-Nov 16:41 17:17 06:38 07:14 6 % 13:25
Mon, 04-Nov 16:39 17:15 dusk 17:33 06:40 07:16 11 % 14:17
Tue, 05-Nov 16:37 17:13 dusk 18:22 06:41 07:18 18 % 15:12
Wed, 06-Nov 16:36 17:12 dusk 19:26 06:43 07:19 27 % 16:07
Thu, 07-Nov 16:34 17:10 dusk 20:43 06:45 07:21 37 % 17:03
Fri, 08-Nov 16:32 17:09 dusk 22:08 06:46 07:23 47 % 17:57
Sat, 09-Nov 16:31 17:07 dusk 23:35 06:48 07:25 58 % 18:48
Sun, 10-Nov 16:29 17:06 dusk 01:02 06:50 07:26 69 % 19:38
Mon, 11-Nov 16:28 17:04 dusk 02:30 06:51 07:28 79 % 20:27 after dusk
Tue, 12-Nov 16:26 17:03 dusk 03:59 06:53 07:30 88 % 21:16 after dusk
Wed, 13-Nov 16:25 17:02 dusk 05:31 06:54 07:32 95 % 22:07 after dusk
Thu, 14-Nov 16:23 17:01 dusk dawn 06:56 07:33 99 % 23:02 all night
Fri, 15-Nov 16:22 16:59 dusk dawn 06:58 07:35 100 % 00:00 all night
Sat, 16-Nov 16:21 16:58 dusk dawn 06:59 07:37 98 % 01:02 all night
Sun, 17-Nov 16:19 16:57 dusk dawn 07:01 07:39 94 % 02:05 all night
Mon, 18-Nov 16:18 16:56 17:51 dawn 07:02 07:40 87 % 03:07 before dawn
Tue, 19-Nov 16:17 16:55 19:04 dawn 07:04 07:42 79 % 04:05 before dawn
Wed, 20-Nov 16:16 16:54 20:25 dawn 07:05 07:44 70 % 04:58
Thu, 21-Nov 16:14 16:53 21:45 dawn 07:07 07:45 61 % 05:45
Fri, 22-Nov 16:13 16:52 23:02 dawn 07:08 07:47 51 % 06:29
Sat, 23-Nov 16:12 16:51 00:15 dawn 07:10 07:48 41 % 07:10
Sun, 24-Nov 16:11 16:50 01:26 dawn 07:11 07:50 32 % 07:49
Mon, 25-Nov 16:10 16:49 02:35 dawn 07:13 07:52 24 % 08:28
Tue, 26-Nov 16:09 16:48 03:46 dawn 07:14 07:53 16 % 09:07
Wed, 27-Nov 16:09 16:48 04:58 dawn 07:15 07:55 10 % 09:48
Thu, 28-Nov 16:08 16:47 06:12 dawn 07:17 07:56 5 % 10:33
Fri, 29-Nov 16:07 16:46 07:18 07:58 2 % 11:20
Sat, 30-Nov 16:06 16:46 07:19 07:59 0 %
Sun, 01-Dec 16:06 16:45 07:21 08:00 1 % 12:12
Mon, 02-Dec 16:05 16:45 07:22 08:02 3 % 13:06
Tue, 03-Dec 16:05 16:44 dusk 17:18 07:23 08:03 8 % 14:03
Wed, 04-Dec 16:04 16:44 dusk 18:33 07:24 08:04 14 % 14:59
Thu, 05-Dec 16:04 16:44 dusk 19:56 07:25 08:06 23 % 15:53
Fri, 06-Dec 16:03 16:43 dusk 21:22 07:27 08:07 32 % 16:45
Sat, 07-Dec 16:03 16:43 dusk 22:47 07:28 08:08 43 % 17:34
Sun, 08-Dec 16:03 16:43 dusk 00:12 07:29 08:09 54 % 18:22
Mon, 09-Dec 16:02 16:43 dusk 01:37 07:30 08:10 65 % 19:09
Tue, 10-Dec 16:02 16:43 dusk 03:04 07:31 08:11 76 % 19:58 after dusk
Wed, 11-Dec 16:02 16:43 dusk 04:34 07:32 08:12 85 % 20:49 after dusk
Thu, 12-Dec 16:02 16:43 dusk 06:07 07:32 08:13 92 % 21:43 after dusk
Fri, 13-Dec 16:02 16:43 dusk dawn 07:33 08:14 97 % 22:42 all night
Sat, 14-Dec 16:02 16:43 dusk dawn 07:34 08:15 100 % 23:44 all night
Sun, 15-Dec 16:02 16:43 dusk dawn 07:35 08:16 99 % 00:47 all night
Mon, 16-Dec 16:03 16:43 dusk dawn 07:36 08:16 96 % 01:48 all night
Tue, 17-Dec 16:03 16:44 17:58 dawn 07:36 08:17 92 % 02:45 before dawn
Wed, 18-Dec 16:03 16:44 19:21 dawn 07:37 08:18 85 % 03:36 before dawn
Thu, 19-Dec 16:04 16:44 20:41 dawn 07:37 08:18 77 % 04:22 before dawn
Fri, 20-Dec 16:04 16:45 21:58 dawn 07:38 08:19 68 % 05:05
Sat, 21-Dec 16:04 16:45 23:10 dawn 07:38 08:19 59 % 05:45
Sun, 22-Dec 16:05 16:46 00:21 dawn 07:39 08:20 49 % 06:24
Mon, 23-Dec 16:06 16:46 01:31 dawn 07:39 08:20 40 % 07:03
Tue, 24-Dec 16:06 16:47 02:42 dawn 07:39 08:20 31 % 07:44
Wed, 25-Dec 16:07 16:48 03:55 dawn 07:40 08:21 23 % 08:26
Thu, 26-Dec 16:08 16:48 05:11 dawn 07:40 08:21 15 % 09:13
Fri, 27-Dec 16:09 16:49 06:27 dawn 07:40 08:21 9 % 10:03
Sat, 28-Dec 16:09 16:50 07:40 dawn 07:40 08:21 4 % 10:57
Sun, 29-Dec 16:10 16:51 07:40 08:21 1 % 11:53
Mon, 30-Dec 16:11 16:52 07:40 08:21 0 %
Tue, 31-Dec 16:12 16:53 07:40 08:21 1 % 12:51
Wed, 01-Jan 16:13 16:54 dusk 17:41 07:40 08:21 5 % 13:47
Thu, 02-Jan 16:14 16:55 dusk 19:08 07:40 08:20 11 % 14:41
Fri, 03-Jan 16:16 16:56 dusk 20:35 07:40 08:20 19 % 15:32
Sat, 04-Jan 16:17 16:57 dusk 22:00 07:40 08:20 28 % 16:20
Sun, 05-Jan 16:18 16:58 dusk 23:24 07:40 08:19 39 % 17:07
Mon, 06-Jan 16:19 16:59 dusk 00:50 07:39 08:19 50 % 17:55
Tue, 07-Jan 16:21 17:00 dusk 02:17 07:39 08:19 61 % 18:43
Wed, 08-Jan 16:22 17:02 dusk 03:46 07:38 08:18 72 % 19:35
Thu, 09-Jan 16:23 17:03 dusk 05:16 07:38 08:17 82 % 20:31 after dusk
Fri, 10-Jan 16:25 17:04 dusk 06:39 07:37 08:17 90 % 21:30 after dusk
Sat, 11-Jan 16:26 17:06 dusk dawn 07:37 08:16 95 % 22:31 all night
Sun, 12-Jan 16:28 17:07 dusk dawn 07:36 08:15 99 % 23:32 all night
Mon, 13-Jan 16:29 17:08 dusk dawn 07:36 08:15 100 % 00:30 all night
Tue, 14-Jan 16:31 17:10 dusk dawn 07:35 08:14 99 % 01:24 all night
Wed, 15-Jan 16:32 17:11 18:17 dawn 07:34 08:13 95 % 02:13 before dawn
Thu, 16-Jan 16:34 17:13 19:36 dawn 07:33 08:12 90 % 02:58 before dawn
Fri, 17-Jan 16:36 17:14 20:52 dawn 07:32 08:11 84 % 03:39 before dawn
Sat, 18-Jan 16:37 17:16 22:04 dawn 07:31 08:10 76 % 04:19 before dawn
Sun, 19-Jan 16:39 17:17 23:14 dawn 07:31 08:09 67 % 04:58
Mon, 20-Jan 16:41 17:19 00:25 dawn 07:30 08:08 58 % 05:38
Tue, 21-Jan 16:42 17:20 01:37 dawn 07:28 08:06 49 % 06:20
Wed, 22-Jan 16:44 17:22 02:52 dawn 07:27 08:05 39 % 07:04

Notes

  • The percentage of the moon which is illuminated doesn't vary much with location.
  • A full moon is not just bigger, it is much brighter. A quarter moon (1/2 disk visible) give less than 5% of the illumination of a full moon. You can walk with a quarter moon if its high in the sky (after dusk for a growing moon, before dawn for a shrinking moon).
  • Sky glow (light reflected by air or clouds) from nearby cities, and especially snow on the ground also effect light levels.
  • Times will vary a few minutes, as (i) these figures are for the centre of the county the walk is in, (ii) if there are hills on the horizon, and (iii) if you are on a hill
  • Of course, you need a cloudless night as well!

Brecon Beacons weather (Accuweather)

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