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.

Hiking weather forecast

Brecon Beacons hourly weather (Visual Crossing)

Sunset: 20:24. Dusk: 21:01. Moon: 99% (visible all night)

Updated: 08:31 on Mon, 22-Apr

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 0% 36% 36% 36% 36% 36% 71% 71% 71% 71% 71% 71% 13% 13%
Tue, 23-Apr 19% 19% 19% 19% 19% 19% 19% 19% 26% 26% 26% 26% 26% 26% 0% 0%
Wed, 24-Apr 0% 0% 3% 3% 3% 3% 3% 3% 32% 32% 32% 32% 32% 32% 0% 0%
Thu, 25-Apr 0% 0% 10% 10% 10% 10% 10% 10% 42% 42% 42% 42% 42% 42% 16% 16%
Fri, 26-Apr 26% 26% 48% 48% 48% 48% 48% 48% 77% 77% 77% 77% 77% 77% 48% 48%
Sat, 27-Apr 39% 39% 58% 58% 58% 58% 58% 58% 84% 84% 84% 84% 84% 84% 48% 48%
Sun, 28-Apr 36% 36% 65% 65% 65% 65% 65% 65% 77% 77% 77% 77% 77% 77% 26% 26%
Mon, 29-Apr 23% 23% 42% 42% 42% 42% 42% 42% 71% 71% 71% 71% 71% 71% 19% 19%
Tue, 30-Apr 16% 16% 29% 29% 29% 29% 29% 29% 55% 55% 55% 55% 55% 55% 36% 36%
Wed, 01-May 32% 32% 45% 45% 45% 45% 45% 45% 74% 74% 74% 74% 74% 74% 29% 29%
Thu, 02-May 10% 10% 45% 45% 45% 45% 45% 45% 65% 65% 65% 65% 65% 65% 26% 26%
Fri, 03-May 16% 16% 36% 36% 36% 36% 36% 36% 42% 42% 42% 42% 42% 42% 13% 13%
Sat, 04-May 26% 26% 23% 23% 23% 23% 23% 23% 55% 55% 55% 55% 55% 55% 23% 23%
Sun, 05-May 16% 16% 39% 39% 39% 39% 39% 39% 55% 55% 55% 55% 55% 55% 13% 13%
Mon, 06-May 7% 7% 39% 39% 39% 39% 39% 39% 48% 48% 48% 48% 48% 48% 16% 16%

Powered by Visual Crossing Weather

Brecon Beacons hourly weather (Open Meteo)

Sunset: 20:24. Dusk: 21:01. Moon: 99% (visible all night)

Updated: 08:32 on Mon, 22-Apr

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 0% 1% 2% 3% 22% 42% 61% 66% 72% 77% 64% 52% 39% 30%
Tue, 23-Apr 20% 16% 13% 16% 20% 23% 21% 18% 16% 18% 21% 23% 23% 23% 23% 16%
Wed, 24-Apr 0% 0% 0% 1% 2% 3% 13% 22% 32% 37% 43% 48% 42% 35% 29% 20%
Thu, 25-Apr 0% 0% 0% 1% 2% 3% 10% 16% 23% 29% 36% 42% 41% 40% 39% 35%
Fri, 26-Apr 17% 18% 19% 20% 22% 23% 37% 51% 65% 67% 69% 71% 69% 67% 65% 58%
Sat, 27-Apr 36% 38% 39% 40% 41% 42% 50% 57% 65% 70% 76% 81% 77% 72% 68% 61%
Sun, 28-Apr 32% 36% 39% 41% 43% 45% 50% 56% 61% 65% 70% 74% 71% 68% 65% 51%
Mon, 29-Apr 17% 18% 19% 17% 15% 13% 29% 45% 61% 63% 66% 68% 63% 57% 52% 43%
Tue, 30-Apr

Weather data by Open-Meteo.com

Brecon Beacons hourly weather (Met Office)

Sunset: 20:24. Dusk: 21:01. Moon: 99% (visible all night)

Updated: 06:00 on Mon, 22-Apr

06 09 12 15 18 21
Today 21% 93% 89% 56% 80% 🌫 25%
Tue, 23-Apr 🌫 19% 🌫 20% 4% 5% 1% 1%
Wed, 24-Apr 3% 13% 13% 14% 6% 2%
Thu, 25-Apr 3% 8% 11% 11% 6% 3%
Fri, 26-Apr 9% 9% 12% 20% 14% 14%
Sat, 27-Apr 12% 13% 17% 20% 15% 9%
Sun, 28-Apr 8% 8% 18% 34% 33% 11%
Mon, 29-Apr 9%

Powered by Met Office data.

Brecon Beacons weather (Met Office)

Updated: 01:08 on Mon, 22-Apr

Cloudy with rain and drizzle, and feeling chilly too.

Today:

  • Cloudy and damp at times with rain and drizzle.
  • Temperatures around average for the time of year though it'll feel a little chillier in the breeze and under cloudier skies.
  • Maximum Temperature 11C.

Tonight:

  • Staying cloudy overnight which will keep temperatures up and largely frost-free.
  • Damp at times with spots of rain and drizzle though generally drier by dawn, though still cloudy.
  • Minimum Temperature 5C.

Tuesday:

  • A cloudy morning and murky around some coasts and hills.
  • Gradually becoming brighter through the day with some sunny spells by the afternoon.
  • A cooler-feeling day with average temperatures.
  • Maximum Temperature 13C.

Wednesday to Friday:

  • Turning increasingly unsettled.
  • Mostly cloudy with some sunny spells and occasional showers, particularly towards the end of the week.
  • Temperatures around average and feeling cold overnight.

UK Day 6-7 and week 2

  • High pressure will likely be retreating to the northwest of the UK at the start of this period, with conditions turning generally more unsettled than the previous few days as low pressure becomes more dominant.
  • Wet weather is perhaps more likely to develop in parts of the south and east, with western and especially northern areas hanging on to the best of any drier interludes, though all parts are may some rain at times.
  • Onshore winds along eastern coasts will likely make it feel rather cold at times, though for all parts temperatures will likely trend back toward average.
  • Into early May, something of a north-south split looks possible, with relatively drier conditions further to the north and the greatest chance of rain further to the south.

UK Week 3 and 4

  • In this period, the chances of unsettled weather are slightly less than usual in the north and about the same as usual further south.
  • Therefore, some spells of wetter weather are likely for all, but perhaps especially southern areas at first with the driest conditions probably further north.
  • Temperatures will probably near or a little below average at first, but likely to recover to around or a little above average as the period progresses.
  • Also worth noting that average temperatures themselves rise by around 1C per week at this time of year.

Powered by Met Office data.

Brecon Beacons mountain weather forecast (Met Office)

Sunset: 20:24. Dusk: 21:01. Moon: 99% (visible all night)

Updated: 03:41 on Mon, 22-Apr

Today
Mon, 22-Apr

A cloudy and chilly day with outbreaks of rain, drizzle and some hill fog.

Generally a cloudy day with cloud bases lowering quickly through the morning as patchy rain and drizzle approaches from north of the park. Cloud low at times leading to some patchy fog across peaks and upslope regions where there is a chance of more prolonged spells of rain. Feeling much cooler.

Chance of Cloud free tops 20%.
Visibility Extensive low cloud, 600 falling 400 metres as outbreaks of rain and drizzle spread across the park. Visibility good in drier spells, otherwise moderate to poor in precipitation and amongst upslope low cloud.
Confidence High confidence in cloudy and damp Monday, lower for rain and shower detail later in week,
View Low cloud will create poor visibility at times if hiking as well as drizzly outbreaks, creating slippery pathways across the park.
Medium risk Blizzards Poor Visibility Heavy Persistent Rain

Conditions on the tops

Time Weather Rain Temp Wind Freezing
06:00 Light rain 40% 4 7 1600m
09:00 Heavy Rain 60% 4 9 1700m
12:00 Heavy Rain 70% 6 12 1700m
15:00 Light rain 70% 7 13 1700m
18:00 Light rain 60% 6 11 1700m
21:00 Drizzle 30% 6 11 1600m
Tue, 23-Apr

Low cloud to start, perhaps bringing some hill fog and the odd spot of rain and drizzle. Conditions generally improving quickly through the morning, leaving a dry day with light winds. Any cloud generally with high bases with sunshine breaking through at times leaving a pleasant afternoon. Feeling cool, particularly across high peaks.

Ice Above summits.
Visibility Low cloud with bases around 400-500m to start with hill fog possible across lower upslope regions too. Poor visibility within low cloud and drizzly outbreaks. This clearing quickly through the morning leaving little to no low cloud and excellent visibility for scenic outlooks.
Wind North to northeasterly winds, 10-15 mph gusting 20-25 mph.
Temp Minus 2 Celsius rising to plus 5 Celsius. (at high level)
Wed, 24-Apr

A chilly start then a mix of cloud, with bases above hill tops, and sunny spells and a chance of the odd light shower. Light to moderate northwesterly winds. Freezing level above summits.

Thu, 25-Apr

Another chilly start then a largely cloudier day compared with Wednesday with a higher risk of showers. Light to moderate northwesterly winds.

Fri, 26-Apr

Low confidence but generally unsettled. Likely cloudy with showers or longer spells of rain. Light to moderate winds with variable direction, mainly southwesterly.

Powered by Met Office data.

Brecon Beacons daylight

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

Day length is dusk to dawn. Times will vary a little if there is a hill on the horizon.

It should still be light enough to read at dawn and dusk, so there will be enough light for walking even earlier (later).

Brecon Beacons moonlight

Night of Sunset Dusk Moon Rise Moon Set Dawn Sunrise Phase % Full Max. Ht. Night Walk
Mon, 22-Apr 20:24 21:01 dusk dawn 05:22 06:00 99 % 00:28 all night
Tue, 23-Apr 20:26 21:03 dusk dawn 05:20 05:57 100 % 01:10 all night
Wed, 24-Apr 20:27 21:05 21:30 dawn 05:18 05:55 99 % 01:55 before dawn
Thu, 25-Apr 20:29 21:07 22:49 dawn 05:16 05:53 96 % 02:44 before dawn
Fri, 26-Apr 20:31 21:09 00:07 dawn 05:14 05:51 91 % 03:36 before dawn
Sat, 27-Apr 20:32 21:10 01:19 dawn 05:11 05:49 85 % 04:32 before dawn
Sun, 28-Apr 20:34 21:12 02:18 dawn 05:09 05:48 76 % 05:30 before dawn
Mon, 29-Apr 20:36 21:14 03:01 dawn 05:07 05:46 67 % 06:28
Tue, 30-Apr 20:37 21:16 03:31 dawn 05:05 05:44 56 % 07:25
Wed, 01-May 20:39 21:18 03:53 dawn 05:03 05:42 45 % 08:19
Thu, 02-May 20:41 21:20 04:09 dawn 05:01 05:40 33 % 09:10
Fri, 03-May 20:42 21:22 04:22 dawn 04:59 05:38 23 % 10:00
Sat, 04-May 20:44 21:24 04:34 dawn 04:57 05:36 14 %
Sun, 05-May 20:46 21:26 04:47 dawn 04:55 05:35 7 %
Mon, 06-May 20:47 21:27 04:53 05:33 2 %
Tue, 07-May 20:49 21:29 04:51 05:31 0 %
Wed, 08-May 20:51 21:31 dusk 21:59 04:49 05:29 1 %
Thu, 09-May 20:52 21:33 dusk 23:26 04:47 05:28 4 % 14:26
Fri, 10-May 20:54 21:35 dusk 00:41 04:45 05:26 10 % 15:26
Sat, 11-May 20:55 21:37 dusk 01:36 04:43 05:24 17 % 16:25
Sun, 12-May 20:57 21:38 dusk 02:15 04:41 05:23 26 % 17:22
Mon, 13-May 20:58 21:40 dusk 02:41 04:39 05:21 35 % 18:14
Tue, 14-May 21:00 21:42 dusk 02:59 04:38 05:20 45 % 19:02
Wed, 15-May 21:01 21:44 dusk 03:12 04:36 05:18 55 % 19:46
Thu, 16-May 21:03 21:46 dusk 03:23 04:34 05:17 64 % 20:28
Fri, 17-May 21:05 21:47 dusk 03:32 04:33 05:15 73 % 21:07
Sat, 18-May 21:06 21:49 dusk 03:41 04:31 05:14 81 % 21:46 after dusk
Sun, 19-May 21:07 21:51 dusk 03:51 04:29 05:13 88 % 22:25 after dusk
Mon, 20-May 21:09 21:52 dusk 04:02 04:28 05:11 93 % 23:06 after dusk
Tue, 21-May 21:10 21:54 dusk 04:16 04:26 05:10 97 % 23:50 after dusk
Wed, 22-May 21:12 21:56 dusk dawn 04:25 05:09 100 % 00:38 all night
Thu, 23-May 21:13 21:57 dusk dawn 04:23 05:08 100 % 01:30 all night
Fri, 24-May 21:14 21:59 23:08 dawn 04:22 05:07 98 % 02:26 before dawn
Sat, 25-May 21:16 22:01 00:12 dawn 04:21 05:06 94 % 03:24 before dawn
Sun, 26-May 21:17 22:02 01:01 dawn 04:19 05:05 87 % 04:23 before dawn
Mon, 27-May 21:18 22:04 01:35 dawn 04:18 05:04 79 % 05:21 before dawn
Tue, 28-May 21:19 22:05 01:58 dawn 04:17 05:03 69 % 06:15
Wed, 29-May 21:21 22:06 02:15 dawn 04:16 05:02 59 % 07:07
Thu, 30-May 21:22 22:08 02:29 dawn 04:15 05:01 47 % 07:56
Fri, 31-May 21:23 22:09 02:41 dawn 04:14 05:00 36 % 08:44
Sat, 01-Jun 21:24 22:11 02:53 dawn 04:13 04:59 25 % 09:32
Sun, 02-Jun 21:25 22:12 03:06 dawn 04:12 04:59 16 % 10:22
Mon, 03-Jun 21:26 22:13 03:22 dawn 04:11 04:58 8 %
Tue, 04-Jun 21:27 22:14 03:43 dawn 04:10 04:57 3 %
Wed, 05-Jun 21:28 22:15 04:09 04:57 0 %
Thu, 06-Jun 21:29 22:16 dusk 22:19 04:09 04:56 0 %
Fri, 07-Jun 21:30 22:17 dusk 23:24 04:08 04:56 2 % 14:09
Sat, 08-Jun 21:31 22:18 dusk 00:10 04:08 04:55 7 % 15:08
Sun, 09-Jun 21:31 22:19 dusk 00:41 04:07 04:55 13 % 16:03
Mon, 10-Jun 21:32 22:20 dusk 01:02 04:07 04:55 21 % 16:54
Tue, 11-Jun 21:33 22:21 dusk 01:18 04:06 04:54 29 % 17:40
Wed, 12-Jun 21:33 22:22 dusk 01:30 04:06 04:54 38 % 18:23
Thu, 13-Jun 21:34 22:22 dusk 01:40 04:06 04:54 48 % 19:03
Fri, 14-Jun 21:35 22:23 dusk 01:49 04:05 04:54 57 % 19:42
Sat, 15-Jun 21:35 22:24 dusk 01:58 04:05 04:54 66 % 20:21
Sun, 16-Jun 21:36 22:24 dusk 02:08 04:05 04:54 75 % 21:01 after dusk
Mon, 17-Jun 21:36 22:25 dusk 02:21 04:05 04:54 83 % 21:44 after dusk
Tue, 18-Jun 21:36 22:25 dusk 02:37 04:05 04:54 90 % 22:30 after dusk
Wed, 19-Jun 21:37 22:25 dusk 03:01 04:06 04:54 95 % 23:20 after dusk
Thu, 20-Jun 21:37 22:25 dusk 03:35 04:06 04:54 99 % 00:15 after dusk
Fri, 21-Jun 21:37 22:26 dusk dawn 04:06 04:55 100 % 01:14 all night
Sat, 22-Jun 21:37 22:26 22:56 dawn 04:06 04:55 99 % 02:14 before dawn
Sun, 23-Jun 21:37 22:26 23:36 dawn 04:07 04:55 95 % 03:14 before dawn
Mon, 24-Jun 21:37 22:26 00:02 dawn 04:07 04:56 90 % 04:10 before dawn
Tue, 25-Jun 21:37 22:26 00:22 dawn 04:08 04:56 81 % 05:03 before dawn
Wed, 26-Jun 21:37 22:26 00:36 dawn 04:08 04:57 72 % 05:53
Thu, 27-Jun 21:37 22:25 00:49 dawn 04:09 04:57 61 % 06:42
Fri, 28-Jun 21:37 22:25 01:01 dawn 04:10 04:58 49 % 07:29
Sat, 29-Jun 21:37 22:25 01:13 dawn 04:10 04:58 38 % 08:18
Sun, 30-Jun 21:36 22:24 01:27 dawn 04:11 04:59 27 % 09:08
Mon, 01-Jul 21:36 22:24 01:46 dawn 04:12 05:00 18 % 10:02
Tue, 02-Jul 21:36 22:23 02:12 dawn 04:13 05:01 10 %
Wed, 03-Jul 21:35 22:23 02:49 dawn 04:14 05:01 5 %
Thu, 04-Jul 21:35 22:22 03:41 dawn 04:15 05:02 1 %
Fri, 05-Jul 21:34 22:21 04:16 05:03 0 %
Sat, 06-Jul 21:34 22:21 dusk 22:40 04:17 05:04 1 % 13:52
Sun, 07-Jul 21:33 22:20 dusk 23:05 04:18 05:05 4 % 14:45
Mon, 08-Jul 21:32 22:19 dusk 23:23 04:20 05:06 9 % 15:33
Tue, 09-Jul 21:31 22:18 dusk 23:36 04:21 05:07 16 % 16:18
Wed, 10-Jul 21:31 22:17 dusk 23:46 04:22 05:08 23 % 16:59
Thu, 11-Jul 21:30 22:16 dusk 23:56 04:23 05:09 32 % 17:38
Fri, 12-Jul 21:29 22:15 dusk 00:05 04:25 05:11 41 % 18:17
Sat, 13-Jul 21:28 22:14 dusk 00:14 04:26 05:12 50 % 18:56
Sun, 14-Jul 21:27 22:12 dusk 00:26 04:28 05:13 60 % 19:37
Mon, 15-Jul 21:26 22:11 dusk 00:40 04:29 05:14 69 % 20:21
Tue, 16-Jul 21:25 22:10 dusk 01:00 04:31 05:15 78 % 21:09 after dusk
Wed, 17-Jul 21:24 22:08 dusk 01:29 04:32 05:17 86 % 22:02 after dusk
Thu, 18-Jul 21:23 22:07 dusk 02:12 04:34 05:18 92 % 22:59 after dusk
Fri, 19-Jul 21:21 22:06 dusk 03:15 04:35 05:19 97 % 23:59 after dusk
Sat, 20-Jul 21:20 22:04 dusk 04:35 04:37 05:21 100 % 01:00 after dusk
Sun, 21-Jul 21:19 22:03 22:04 dawn 04:38 05:22 100 % 01:59 before dawn
Mon, 22-Jul 21:18 22:01 22:26 dawn 04:40 05:23 97 % 02:55 before dawn
Tue, 23-Jul 21:16 21:59 22:43 dawn 04:42 05:25 91 % 03:48 before dawn
Wed, 24-Jul 21:15 21:58 22:56 dawn 04:43 05:26 83 % 04:38 before dawn
Thu, 25-Jul 21:13 21:56 23:08 dawn 04:45 05:28 74 % 05:26
Fri, 26-Jul 21:12 21:54 23:20 dawn 04:47 05:29 63 % 06:15
Sat, 27-Jul 21:10 21:53 23:34 dawn 04:49 05:31 52 % 07:05
Sun, 28-Jul 21:09 21:51 23:51 dawn 04:50 05:32 41 % 07:58
Mon, 29-Jul 21:07 21:49 00:14 dawn 04:52 05:34 30 % 08:53
Tue, 30-Jul 21:06 21:47 00:47 dawn 04:54 05:35 21 % 09:50
Wed, 31-Jul 21:04 21:45 01:33 dawn 04:56 05:37 13 %
Thu, 01-Aug 21:02 21:43 02:35 dawn 04:57 05:38 6 %
Fri, 02-Aug 21:01 21:41 03:48 dawn 04:59 05:40 2 %
Sat, 03-Aug 20:59 21:39 05:01 05:41 0 %
Sun, 04-Aug 20:57 21:37 05:03 05:43 0 %
Mon, 05-Aug 20:56 21:35 dusk 21:43 05:05 05:44 2 % 14:13
Tue, 06-Aug 20:54 21:33 dusk 21:54 05:06 05:46 6 % 14:55
Wed, 07-Aug 20:52 21:31 dusk 22:03 05:08 05:48 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 05:12 05:51 25 % 16:53
Sat, 10-Aug 20:46 21:25 dusk 22:32 05:14 05:52 34 % 17:33
Sun, 11-Aug 20:44 21:23 dusk 22:44 05:15 05:54 43 % 18:15
Mon, 12-Aug 20:42 21:21 dusk 23:01 05:17 05:56 53 % 19:01
Tue, 13-Aug 20:40 21:18 dusk 23:25 05:19 05:57 63 % 19:50
Wed, 14-Aug 20:38 21:16 dusk 00:00 05:21 05:59 73 % 20:44
Thu, 15-Aug 20:36 21:14 dusk 00:53 05:23 06:00 82 % 21:42 after dusk
Fri, 16-Aug 20:34 21:12 dusk 02:05 05:25 06:02 89 % 22:42 after dusk
Sat, 17-Aug 20:32 21:10 dusk 03:31 05:26 06:04 95 % 23:42 after dusk
Sun, 18-Aug 20:30 21:07 dusk 05:05 05:28 06:05 99 % 00:40 after dusk
Mon, 19-Aug 20:28 21:05 dusk dawn 05:30 06:07 100 % 01:35 all night
Tue, 20-Aug 20:26 21:03 dusk dawn 05:32 06:09 98 % 02:28 all night
Wed, 21-Aug 20:24 21:01 21:14 dawn 05:34 06:10 93 % 03:18 before dawn
Thu, 22-Aug 20:22 20:58 21:27 dawn 05:35 06:12 85 % 04:09 before dawn
Fri, 23-Aug 20:20 20:56 21:40 dawn 05:37 06:13 76 % 05:00 before dawn
Sat, 24-Aug 20:17 20:54 21:56 dawn 05:39 06:15 66 % 05:53
Sun, 25-Aug 20:15 20:51 22:17 dawn 05:41 06:17 55 % 06:48
Mon, 26-Aug 20:13 20:49 22:46 dawn 05:42 06:18 44 % 07:45
Tue, 27-Aug 20:11 20:47 23:29 dawn 05:44 06:20 33 % 08:43
Wed, 28-Aug 20:09 20:44 00:26 dawn 05:46 06:22 24 % 09:40
Thu, 29-Aug 20:06 20:42 01:36 dawn 05:48 06:23 15 %
Fri, 30-Aug 20:04 20:40 02:52 dawn 05:49 06:25 9 %
Sat, 31-Aug 20:02 20:37 04:10 dawn 05:51 06:26 4 %
Sun, 01-Sep 20:00 20:35 05:26 dawn 05:53 06:28 1 %
Mon, 02-Sep 19:57 20:32 05:55 06:30 0 %
Tue, 03-Sep 19:55 20:30 05:56 06:31 1 % 13:34
Wed, 04-Sep 19:53 20:28 05:58 06:33 3 % 14:13
Thu, 05-Sep 19:51 20:25 dusk 20:30 06:00 06:35 7 % 14:52
Fri, 06-Sep 19:48 20:23 dusk 20:40 06:02 06:36 13 % 15:31
Sat, 07-Sep 19:46 20:20 dusk 20:51 06:03 06:38 20 % 16:12
Sun, 08-Sep 19:44 20:18 dusk 21:06 06:05 06:39 28 % 16:56
Mon, 09-Sep 19:41 20:16 dusk 21:26 06:07 06:41 37 % 17:43
Tue, 10-Sep 19:39 20:13 dusk 21:55 06:08 06:43 47 % 18:34
Wed, 11-Sep 19:37 20:11 dusk 22:39 06:10 06:44 57 % 19:29
Thu, 12-Sep 19:34 20:08 dusk 23:40 06:12 06:46 68 % 20:26
Fri, 13-Sep 19:32 20:06 dusk 00:59 06:13 06:47 78 % 21:25 after dusk
Sat, 14-Sep 19:30 20:04 dusk 02:28 06:15 06:49 86 % 22:23 after dusk
Sun, 15-Sep 19:27 20:01 dusk 04:01 06:17 06:51 93 % 23:19 after dusk
Mon, 16-Sep 19:25 19:59 dusk 05:35 06:18 06:52 98 % 00:12 after dusk
Tue, 17-Sep 19:23 19:57 dusk dawn 06:20 06:54 100 % 01:04 all night
Wed, 18-Sep 19:20 19:54 dusk dawn 06:22 06:56 99 % 01:56 all night
Thu, 19-Sep 19:18 19:52 dusk dawn 06:23 06:57 95 % 02:48 all night
Fri, 20-Sep 19:16 19:49 20:00 dawn 06:25 06:59 88 % 03:42 before dawn
Sat, 21-Sep 19:13 19:47 20:19 dawn 06:27 07:00 79 % 04:38 before dawn
Sun, 22-Sep 19:11 19:45 20:46 dawn 06:28 07:02 69 % 05:37
Mon, 23-Sep 19:09 19:42 21:24 dawn 06:30 07:04 59 % 06:36
Tue, 24-Sep 19:06 19:40 22:18 dawn 06:32 07:05 48 % 07:35
Wed, 25-Sep 19:04 19:38 23:25 dawn 06:33 07:07 38 % 08:30
Thu, 26-Sep 19:02 19:35 00:41 dawn 06:35 07:09 28 % 09:21
Fri, 27-Sep 19:00 19:33 01:58 dawn 06:37 07:10 20 % 10:09
Sat, 28-Sep 18:57 19:31 03:14 dawn 06:38 07:12 13 %
Sun, 29-Sep 18:55 19:28 04:28 dawn 06:40 07:14 7 %
Mon, 30-Sep 18:53 19:26 05:39 dawn 06:42 07:15 3 %
Tue, 01-Oct 18:50 19:24 06:43 07:17 1 %
Wed, 02-Oct 18:48 19:21 06:45 07:19 0 %
Thu, 03-Oct 18:46 19:19 06:47 07:20 1 % 13:30
Fri, 04-Oct 18:43 19:17 06:48 07:22 4 % 14:11
Sat, 05-Oct 18:41 19:15 06:50 07:24 9 % 14:54
Sun, 06-Oct 18:39 19:12 dusk 19:31 06:52 07:25 15 % 15:39
Mon, 07-Oct 18:37 19:10 dusk 19:56 06:53 07:27 23 % 16:29
Tue, 08-Oct 18:34 19:08 dusk 20:34 06:55 07:29 32 % 17:22
Wed, 09-Oct 18:32 19:06 dusk 21:27 06:57 07:30 42 % 18:17
Thu, 10-Oct 18:30 19:04 dusk 22:37 06:58 07:32 52 % 19:14
Fri, 11-Oct 18:28 19:01 dusk 00:00 07:00 07:34 63 % 20:10
Sat, 12-Oct 18:26 18:59 dusk 01:29 07:02 07:36 73 % 21:05
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 % 22:49 after dusk
Tue, 15-Oct 18:19 18:53 dusk 06:02 07:07 07:41 97 % 23:40 after dusk
Wed, 16-Oct 18:17 18:51 dusk dawn 07:08 07:43 100 % 00:31 all night
Thu, 17-Oct 18:15 18:49 dusk dawn 07:10 07:44 100 % 01:25 all night
Fri, 18-Oct 18:13 18:47 dusk dawn 07:12 07:46 97 % 02:21 all night

Notes

  • The moon's phase or fracillum (percentage of the moon illuminated) doesn't vary much with location.
  • A full moon is not just bigger, its much brighter. A half moon ('50%') give less than 5% of the illumination of a full moon. You can walk with a half 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.