Walker on Dismantled Tramway through Gash in Limestone Wall

SWC Walk 307 - Fforest Fawr Traverse (Craig y Nos to Llwyn-y-celyn)

02-May-17 • thomasgrabow on Flickr

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The Black Mountain (Y Mynydd Du)

SWC Walk 307 - Fforest Fawr Traverse (Craig y Nos to Llwyn-y-celyn)

02-May-17 • thomasgrabow on Flickr

swcwalks swcwalk307 walkicon

Forest in Bowl below Fan Gyhirych

SWC Walk 307 - Fforest Fawr Traverse (Craig y Nos to Llwyn-y-celyn)

02-May-17 • thomasgrabow on Flickr

swcwalks swcwalk307 walkicon

View from Bwlch y Duwynt

SWC Walk 307 - Fforest Fawr Traverse (Craig y Nos to Llwyn-y-celyn)

02-May-17 • thomasgrabow on Flickr

swcwalks swcwalk307 walkicon

Pen y Fan and Corn Du beyond Fan Dringarth

SWC Walk 307 - Fforest Fawr Traverse (Craig y Nos to Llwyn-y-celyn)

02-May-17 • thomasgrabow on Flickr

swcwalks swcwalk307 walkicon

Crossing of the Nedd Fechan

SWC Walk 307 - Fforest Fawr Traverse (Craig y Nos to Llwyn-y-celyn) [Beacons Way Route]

06-May-18 • thomasgrabow on Flickr

walkicon swcwalks swcwalk307

Maen Madoc

SWC Walk 307 - Fforest Fawr Traverse (Craig y Nos to Llwyn-y-celyn) [Beacons Way Route]

06-May-18 • thomasgrabow on Flickr

swcwalks swcwalk307 walkicon

Fforest Fawr traverse : Craig Y Nos to Llwyn Y Celyn walk

Remote mountain traverse: limestone scenery, Fan Gyhirych, a glacial escarpment, great views all around. Bus travel.

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 20% 15% 14% 10%
Thu, 30-Jan 15% 16% 13% 10% 12% 14% 13% 13% 13% 12% 13% 11% 8%
Fri, 31-Jan 26% 27% 32% 43% 45% 42% 36% 32% 28% 27% 26% 24% 24%
Sat, 01-Feb 20% 16% 15% 17% 19% 23% 28% 28% 20% 10% 0% 0% 0%
Sun, 02-Feb 51% 32% 26% 20% 19% 20% 23% 26% 25% 19% 13% 9% 7%
Mon, 03-Feb 40% 23% 21% 21% 22% 23% 23% 24% 23% 18% 14% 11% 7%
Tue, 04-Feb 4% 5% 8% 12% 17% 19% 19% 18% 14% 10% 8% 6% 4%
Wed, 05-Feb 13% 9% 8% 6% 6% 6% 7% 6% 5% 3%

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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: 0600 on 2020-01-29 for Brecon Beacons

Today

Patchy rain and summit snow. Milder air moving in. Gales over the tops.

Summary Mainly dry and bright during the morning, but turning cloudy with some light rain in the afternoon and evening. Sleet or snow possible for a time over the highest tops, but soon turning to rain at all levels.
Chance of Cloud free tops 80% becoming 40%. Occasional or extensive cloud with base near or above the summits during the morning, lowering to around 600m in the afternoon, patches to 300m possible.
Ground conditions
Visibility Moderate at times in rain, otherwise mostly good or very good low down. Occasionally poor or very poor over the tops in the afternoon and evening.
Gales: High Likelihood
Severe Chill Effect: High Likelihood
Poor Visibility: Low Likelihood
060708 091011 121314 151617 181920 212223
Weather Partly cloudy (night) Sunny intervals Sunny intervals Light rain Light rain Cloudy
Rain 20% 10% 10% 60% 70% 40%
Temp (tops) 0 1 3 4 4 4
Wind (tops) 23 20 24 27 23 21
Freezing Level 500m 700m 900m 1200m 1100m 1100m
Day 1

Cloudy with outbreaks of rain and drizzle during daylight hours, and with extensive hill fog. Mainly dry late in the day.

Ice Above the summits.
Visibility Moderate or poor in rain and drizzle, otherwise mostly good. Often poor or very poor at height.
Wind Southwest 20 to 30mph gusting 45mph over the tops.
Temp Around plus 5 Celsius (at high level)
Day 2

Drizzle and extensive low cloud, becoming more general rain during the morning, this clearing later in the day. Gale or severe gale force southwesterly winds over the tops. Freezing level above the summits.

Day 3

Mainly dry but rather cloudy. Strong to gale force southwest winds at first over the tops, easing later in the day. Freezing level above the summits.

Day 4

Outbreaks of rain clearing to isolated showers. Strong to gale force southwesterly winds over the tops. Freezing level above the summits.

Data: Met Office