Small Waterfall in the Nant Llech Valley (Close-up)

SWC Walk 280 Henrhyd Falls - Sgwd Henrhyd (Craig y Nos Circular)

13-Oct-16 • thomasgrabow on Flickr

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Boardwalk to side of another waterfall on the Nant Llech

SWC Walk 280 Henrhyd Falls - Sgwd Henrhyd (Craig y Nos Circular)

13-Oct-16 • thomasgrabow on Flickr

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Cribarth Plateau from across Cwm Tawe

SWC Walk 280 Henrhyd Falls - Sgwd Henrhyd (Craig y Nos Circular)

13-Oct-16 • thomasgrabow on Flickr

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Craig y Nos Castle, from A4067

SWC Walk 280 Henrhyd Falls - Sgwd Henrhyd (Craig y Nos Circular)

13-Oct-16 • thomasgrabow on Flickr

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Bluebells in Abercrave Wood on Descent from Cribarth Plateau (Detail)

SWC Walk 280 Henrhyd Falls - Sgwd Henrhyd (Craig y Nos Circular)

01-May-17 • thomasgrabow on Flickr

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SWC Advance Group behind Sgwd Henrhyd's Curtain of Water

SWC Walk 280 Henrhyd Falls - Sgwd Henrhyd (Craig y Nos Circular)

01-May-17 • thomasgrabow on Flickr

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Craig y Nos Castle through trees

SWC Walk 280 Henrhyd Falls - Sgwd Henrhyd (Craig y Nos Circular)

13-Oct-16 • thomasgrabow on Flickr

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Henrhyd Waterfalls (Sgwd Henrhyd) from Craig y Nos walk

Rewarding walk through Craig y Nos Country Park and above the Tawe River or via the Cribarth limestone plateau, then up a scenic wooded gorge to South Wales' highest waterfall

Hiking Weather

7 Day Forecast for Brecon Beacons NP

Sunset: 16:56. Dusk: 17:33. Moon: 19% (dusk to 21:51)

8 9 10 11 12 13 14 15 16 17 18 19 20
Wed, 29-Jan 8%
Thu, 30-Jan 20% 25% 19% 13% 15% 16% 15% 13% 11% 10% 11% 11% 9%
Fri, 31-Jan 24% 26% 31% 37% 40% 37% 31% 24% 20% 18% 14% 14% 13%
Sat, 01-Feb 19% 20% 20% 20% 23% 23% 26% 25% 20% 13% 10% 6% 0%
Sun, 02-Feb 52% 43% 28% 20% 16% 18% 21% 23% 21% 18% 16% 16% 15%
Mon, 03-Feb 72% 73% 63% 48% 44% 42% 39% 39% 35% 27% 18% 14% 14%
Tue, 04-Feb 27% 28% 25% 22% 22% 25% 25% 22% 14% 11% 9% 7% 4%
Wed, 05-Feb 0% 0% 0% 9% 9% 8% 6% 5% 3% 2% 2% 0% 0%

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Met Office Forecast

Wales

Cloudy tomorrow with light rain or drizzle at times.

This Evening and Tonight:

Most places will see a dry but cloudy evening with some patchy light rain or drizzle over the hills. Some clear spells will develop through the early hours before cloud starts to build again towards dawn. Not as cold overnight. Minimum Temperature 4C.

Thursday:

A murky start for many with light rain or drizzle in places. This rain will spread across much of the country through the afternoon, but should ease towards evening. Maximum Temperature 12C.

Outlook for Friday to Sunday:

A changeable few days with spells of rain and strong winds. The best of the dry and bright weather should be on Saturday before further rain arrives Sunday. Generally mild.

Day 6-7 and Week 2:

The beginning of next week will remain unsettled with outbreaks of rain or showers mixed with bright or sunny spells. Thereafter, we should see the dominance of high pressure across the UK. This will allow a shift towards more settled conditions with a good deal of sunshine across most parts. Northern and eastern areas are likely to start this period cold with a chance of wintry showers, these likely falling as snow to relatively low levels at times. Towards the end of next week, the settled weather will spread further east with plenty of sunny spells by day and a risk of frost by night. Following this, it looks to stay mostly dry but it may turn increasingly cloudy towards the middle of February with possible overnight fog.

Week 3 and 4:

This period seems to trend towards a more typical northwest/southeast divide. The southeast should hold on to the drier and calmer weather for a while longer with a continued risk of overnight frost and fog. Further north, it will turn increasingly unsettled with outbreaks of rain and strong winds at times. Temperatures will gradually return towards normal, but will remain a little below average during the settled spell in the south.

Met Office : Wales : 2020-01-29T14:50:58

Daylight : Brecon Beacons NP

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

Data: US Navy Observatory

Moonlight : Brecon Beacons NP

Date Sunset Dusk Moon Rise Moon Set Dawn Sunrise % Full Max. Ht. Night Walk
Wed, 29-Jan 16:56 17:33 dusk 21:51 07:20 07:57 19% 15:56
Thu, 30-Jan 16:57 17:34 dusk 22:57 07:19 07:56 27% 16:37
Fri, 31-Jan 16:59 17:36 dusk 00:04 07:18 07:54 35% 17:17
Sat, 01-Feb 17:01 17:38 dusk 01:11 07:16 07:53 45% 17:59
Sun, 02-Feb 17:03 17:39 dusk 02:21 07:15 07:51 50% 18:44
Mon, 03-Feb 17:05 17:41 dusk 03:32 07:13 07:49 64% 19:31
Tue, 04-Feb 17:07 17:43 dusk 04:42 07:12 07:48 73% 20:22
Wed, 05-Feb 17:08 17:45 dusk 05:48 07:10 07:46 82% 21:17 after dusk
Thu, 06-Feb 17:10 17:46 dusk 06:45 07:09 07:44 90% 22:15 after dusk
Fri, 07-Feb 17:12 17:48 dusk dawn 07:07 07:43 95% 23:15 all night
Sat, 08-Feb 17:14 17:50 dusk dawn 07:05 07:41 99% 00:15 all night
Sun, 09-Feb 17:16 17:51 dusk dawn 07:04 07:39 100% 01:14 all night
Mon, 10-Feb 17:18 17:53 18:56 dawn 07:02 07:37 98% 02:09 before dawn
Tue, 11-Feb 17:20 17:55 20:22 dawn 07:00 07:35 93% 03:03 before dawn
Wed, 12-Feb 17:21 17:57 21:47 dawn 06:58 07:33 86% 03:55 before dawn
Thu, 13-Feb 17:23 17:58 23:11 dawn 06:57 07:32 76% 04:47 before dawn
Fri, 14-Feb 17:25 18:00 00:32 dawn 06:55 07:30 66% 05:38
Sat, 15-Feb 17:27 18:02 01:52 dawn 06:53 07:28 50% 06:30
Sun, 16-Feb 17:29 18:04 03:07 dawn 06:51 07:26 44% 07:24
Mon, 17-Feb 17:31 18:05 04:17 dawn 06:49 07:24 33% 08:17
Tue, 18-Feb 17:33 18:07 05:17 dawn 06:47 07:22 24% 09:11
Wed, 19-Feb 17:34 18:09 06:06 dawn 06:45 07:20 16% 10:04
Thu, 20-Feb 17:36 18:11 06:43 07:18 9%
Fri, 21-Feb 17:38 18:12 06:41 07:16 4%
Sat, 22-Feb 17:40 18:14 06:39 07:13 1%
Sun, 23-Feb 17:42 18:16 06:37 07:11 0%
Mon, 24-Feb 17:44 18:18 dusk 18:33 06:35 07:09 1% 13:12
Tue, 25-Feb 17:45 18:19 dusk 19:40 06:33 07:07 3% 13:53
Wed, 26-Feb 17:47 18:21 dusk 20:46 06:31 07:05 7% 14:34
Thu, 27-Feb 17:49 18:23 dusk 21:52 06:29 07:03 13% 15:15
Fri, 28-Feb 17:51 18:25 dusk 22:59 06:27 07:01 20% 15:56
Sat, 29-Feb 17:53 18:26 dusk 00:07 06:25 06:59 28% 16:39
Sun, 01-Mar 17:54 18:28 dusk 01:16 06:23 06:56 37% 17:24
Mon, 02-Mar 17:56 18:30 dusk 02:25 06:21 06:54 50% 18:12
Tue, 03-Mar 17:58 18:32 dusk 03:31 06:18 06:52 57% 19:04
Wed, 04-Mar 18:00 18:33 dusk 04:31 06:16 06:50 67% 19:59
Thu, 05-Mar 18:01 18:35 dusk 05:23 06:14 06:48 77% 20:57 after dusk
Fri, 06-Mar 18:03 18:37 dusk 06:04 06:12 06:45 85% 21:56 after dusk
Sat, 07-Mar 18:05 18:39 dusk dawn 06:10 06:43 93% 22:54 all night
Sun, 08-Mar 18:07 18:40 dusk dawn 06:07 06:41 98% 23:52 all night
Mon, 09-Mar 18:09 18:42 dusk dawn 06:05 06:39 100% 00:47 all night
Tue, 10-Mar 18:10 18:44 19:17 dawn 06:03 06:36 99% 01:42 before dawn
Wed, 11-Mar 18:12 18:46 20:45 dawn 06:01 06:34 95% 02:35 before dawn
Thu, 12-Mar 18:14 18:47 22:11 dawn 05:58 06:32 89% 03:29 before dawn
Fri, 13-Mar 18:16 18:49 23:35 dawn 05:56 06:29 80% 04:23 before dawn
Sat, 14-Mar 18:17 18:51 00:55 dawn 05:54 06:27 70% 05:17
Sun, 15-Mar 18:19 18:53 02:09 dawn 05:51 06:25 60% 06:12
Mon, 16-Mar 18:21 18:54 03:14 dawn 05:49 06:22 50% 07:07
Tue, 17-Mar 18:22 18:56 04:06 dawn 05:47 06:20 39% 08:00
Wed, 18-Mar 18:24 18:58 04:48 dawn 05:44 06:18 29% 08:52
Thu, 19-Mar 18:26 19:00 05:21 dawn 05:42 06:16 21% 09:40
Fri, 20-Mar 18:28 19:01 05:40 06:13 13%
Sat, 21-Mar 18:29 19:03 05:37 06:11 8%
Sun, 22-Mar 18:31 19:05 05:35 06:09 3%
Mon, 23-Mar 18:33 19:07 05:33 06:06 1%
Tue, 24-Mar 18:35 19:08 05:30 06:04 0%
Wed, 25-Mar 18:36 19:10 dusk 19:43 05:28 06:02 1% 13:13
Thu, 26-Mar 18:38 19:12 dusk 20:50 05:26 05:59 4% 13:54
Fri, 27-Mar 18:40 19:14 dusk 21:58 05:23 05:57 9% 14:37
Sat, 28-Mar 18:41 19:15 dusk 00:07 06:21 06:55 15% 15:21
Sun, 29-Mar 19:43 20:17 dusk 01:15 06:18 06:53 22% 17:07
Mon, 30-Mar 19:45 20:19 dusk 02:22 06:16 06:50 30% 17:57
Tue, 31-Mar 19:46 20:21 dusk 03:23 06:14 06:48 40% 18:50
Wed, 01-Apr 19:48 20:23 dusk 04:16 06:11 06:46 50% 19:45
Thu, 02-Apr 19:50 20:24 dusk 05:00 06:09 06:43 61% 20:41
Fri, 03-Apr 19:52 20:26 dusk 05:35 06:07 06:41 72% 21:38
Sat, 04-Apr 19:53 20:28 dusk 06:03 06:04 06:39 81% 22:34 after dusk
Sun, 05-Apr 19:55 20:30 dusk dawn 06:02 06:37 89% 23:30 all night
Mon, 06-Apr 19:57 20:32 dusk dawn 06:00 06:34 96% 00:24 all night
Tue, 07-Apr 19:58 20:33 dusk dawn 05:57 06:32 99% 01:18 all night
Wed, 08-Apr 20:00 20:35 20:38 dawn 05:55 06:30 100% 02:12 before dawn
Thu, 09-Apr 20:02 20:37 22:06 dawn 05:52 06:28 97% 03:08 before dawn
Fri, 10-Apr 20:03 20:39 23:32 dawn 05:50 06:25 92% 04:04 before dawn
Sat, 11-Apr 20:05 20:41 00:53 dawn 05:48 06:23 84% 05:01 before dawn
Sun, 12-Apr 20:07 20:42 02:04 dawn 05:45 06:21 75% 05:58 before dawn
Mon, 13-Apr 20:09 20:44 03:03 dawn 05:43 06:19 65% 06:54
Tue, 14-Apr 20:10 20:46 03:50 dawn 05:41 06:17 50% 07:47
Wed, 15-Apr 20:12 20:48 04:25 dawn 05:38 06:14 45% 08:38
Thu, 16-Apr 20:14 20:50 04:53 dawn 05:36 06:12 35% 09:25
Fri, 17-Apr 20:15 20:52 05:15 dawn 05:34 06:10 26% 10:09
Sat, 18-Apr 20:17 20:54 05:32 06:08 18%
Sun, 19-Apr 20:19 20:55 05:29 06:06 12%
Mon, 20-Apr 20:20 20:57 05:27 06:04 6%
Tue, 21-Apr 20:22 20:59 05:25 06:02 3%
Wed, 22-Apr 20:24 21:01 05:22 06:00 1%
Thu, 23-Apr 20:26 21:03 05:20 05:58 0%
Fri, 24-Apr 20:27 21:05 dusk 21:58 05:18 05:56 2% 14:19
Sat, 25-Apr 20:29 21:07 dusk 23:08 05:16 05:54 5% 15:05
Sun, 26-Apr 20:31 21:09 dusk 00:16 05:14 05:52 10% 15:54
Mon, 27-Apr 20:32 21:10 dusk 01:19 05:11 05:50 17% 16:46
Tue, 28-Apr 20:34 21:12 dusk 02:14 05:09 05:48 26% 17:39
Wed, 29-Apr 20:36 21:14 dusk 03:00 05:07 05:46 35% 18:34
Thu, 30-Apr 20:37 21:16 dusk 03:37 05:05 05:44 50% 19:30
Fri, 01-May 20:39 21:18 dusk 04:06 05:03 05:42 57% 20:24
Sat, 02-May 20:41 21:20 dusk 04:30 05:01 05:40 68% 21:18
Sun, 03-May 20:42 21:22 dusk 04:52 04:59 05:38 78% 22:10 after dusk
Mon, 04-May 20:44 21:24 dusk dawn 04:57 05:36 87% 23:03 all night
Tue, 05-May 20:46 21:25 dusk dawn 04:55 05:35 94% 23:56 all night
Wed, 06-May 20:47 21:27 dusk dawn 04:53 05:33 98% 00:50 all night
Thu, 07-May 20:49 21:29 dusk dawn 04:51 05:31 100% 01:46 all night
Fri, 08-May 20:50 21:31 22:25 dawn 04:49 05:29 98% 02:44 before dawn
Sat, 09-May 20:52 21:33 23:44 dawn 04:47 05:28 94% 03:43 before dawn
Sun, 10-May 20:54 21:35 00:52 dawn 04:45 05:26 88% 04:41 before dawn
Mon, 11-May 20:55 21:37 01:45 dawn 04:43 05:25 80% 05:38 before dawn
Tue, 12-May 20:57 21:38 02:26 dawn 04:41 05:23 71% 06:31
Wed, 13-May 20:58 21:40 02:57 dawn 04:40 05:21 61% 07:20
Thu, 14-May 21:00 21:42 03:21 dawn 04:38 05:20 50% 08:06
Fri, 15-May 21:01 21:44 03:41 dawn 04:36 05:18 42% 08:49
Sat, 16-May 21:03 21:46 03:57 dawn 04:34 05:17 32% 09:31
Sun, 17-May 21:04 21:47 04:13 dawn 04:33 05:16 24% 10:11
Mon, 18-May 21:06 21:49 04:28 dawn 04:31 05:14 16% 10:52
Tue, 19-May 21:07 21:51 04:29 05:13 10%
Wed, 20-May 21:09 21:52 04:28 05:12 5%
Thu, 21-May 21:10 21:54 04:26 05:10 2%
Fri, 22-May 21:12 21:56 04:25 05:09 0%
Sat, 23-May 21:13 21:57 dusk 22:07 04:24 05:08 1% 13:50
Sun, 24-May 21:14 21:59 dusk 23:13 04:22 05:07 3% 14:42
Mon, 25-May 21:16 22:00 dusk 00:12 04:21 05:06 7% 15:35
Tue, 26-May 21:17 22:02 dusk 01:01 04:20 05:05 14% 16:30
Wed, 27-May 21:18 22:03 dusk 01:40 04:18 05:04 22% 17:26

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, and, (ii) if there are hills on the horizon.
  • Of course, you need a cloudless night as well!
  • Data: US Navy Observatory

Met Office Mountain Forecast

Issued: 1800 on 2020-01-29 for Brecon Beacons

Today

Cloudy with some rain and drizzle. Strong winds over the tops.

Summary It will be mostly cloudy with occasional rain and drizzle, low cloud extensive during daylight hours. The cloud lifting and breaking a little in the evening and becoming mainly dry.
Chance of Cloud free tops Nil to 20% during daylight hours, extensive or overcast cloud with base 300 to 600m. Becoming 70% in the evening with the cloud lifting and breaking, bases 600 to 900m.
Ground conditions
Visibility Moderate or poor in rain and drizzle, often very poor at height. Becoming very good in the evening.
Gales: Medium Likelihood
Severe Chill Effect: Low Likelihood
Poor Visibility: High Likelihood
060708 091011 121314 151617 181920 212223
Weather Cloudy Cloudy Fog Fog Drizzle Drizzle
Rain 10% 10% 20% 40% 70% 70%
Temp (tops) 4 4 5 6 7 8
Wind (tops) 23 23 19 19 22 24
Freezing Level 1200m 1400m 1500m 2100m 2200m 1900m
Day 1

Cloudy with outbreaks of rain, occasionally heavy and persistent. Turning drier in the evening with the cloud beginning to lift and break. Gales at times over the tops.

Ice Above the summits
Visibility Moderate in rain and often poor or very poor at height. Becoming most good or very good in the evening.
Wind Southwest 30 to 40mph gusts 60mph.
Temp Plus 7 Celsius, later 4 Celsius (at high level)
Day 2

Mainly dry with patchy cloud cover overnight. Mainly dry and bright during daylight hours, although the odd shower possible, wintry over the summits. Cloud increasing in the evening with outbreaks of rain, perhaps snow over the summits. West or Southwesterly winds gale force at height. Freezing level around the summits.

Day 3

Dry overnight, but soon cloudy with outbreaks of rain. Southeast to southwest winds gale force at times over the tops. Turning more showery by the evening. Freezing level above the summits.

Day 4

Bright spells and showers, these turning to snow above 500m. Gale or severe gale west to southwest winds at height with temporary blizzard conditions and a severe wind chill. Freezing level lowering to around 600m.

Data: Met Office