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Notice 21-10-2026. Over the coming 3 weeks we will be migrating to a newer version of Bigsalty. Whilst this happens we have removed login / user capabilities and some current weather functionality.

Llandegfedd Reservoir Weather Forecast

GFS 50km atmospheric forecast data for Llandegfedd Reservoir.

Monday 26 October (Today)

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
9.5kts
19.6kts
0.2mm
1%
11°C
7°C
  • ●
  • ●
  • ●
03:00
11.2kts
14.6kts
0mm
0%
11°C
7°C
  • ●
  • ●
  • ●
06:00
13kts
24.8kts
0.3mm
3%
12°C
10°C
  • ●
  • ●
  • ●
09:00
19.4kts
33.5kts
4.4mm
89%
13°C
11°C
  • ●
  • ●
  • ●
12:00
18.7kts
33kts
9.7mm
95%
14°C
15°C
  • ●
  • ●
  • ●
15:00
17.4kts
30kts
0.1mm
100%
14°C
15°C
  • ●
  • ●
  • ●
18:00
16.5kts
29.2kts
0.2mm
91%
14°C
15°C
  • ●
  • ●
  • ●
21:00
22kts
34.4kts
0mm
81%
14°C
15°C
  • ●
  • ●
  • ●

Sunrise: 06:53 / Sunset: 16:57 Twilight: 06:19 / 17:32

Tuesday 27 October (Tomorrow)

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
23.5kts
38.8kts
0.1mm
84%
14°C
15°C
  • ●
  • ●
  • ●
03:00
25.9kts
41.9kts
1.1mm
96%
14°C
15°C
  • ●
  • ●
  • ●
06:00
15.6kts
25.8kts
7.1mm
87%
13°C
12°C
  • ●
  • ●
  • ●
09:00
16.2kts
23.7kts
0.3mm
9%
12°C
11°C
  • ●
  • ●
  • ●
12:00
17.2kts
23.9kts
0.7mm
5%
13°C
11°C
  • ●
  • ●
  • ●
15:00
15.4kts
22.7kts
0.4mm
0%
13°C
11°C
  • ●
  • ●
  • ●
18:00
11.9kts
23kts
0.6mm
0%
11°C
10°C
  • ●
  • ●
  • ●
21:00
11.2kts
22.5kts
0mm
0%
11°C
7°C
  • ●
  • ●
  • ●

Sunrise: 06:55 / Sunset: 16:56 Twilight: 06:20 / 17:30

Wednesday 28 October

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
6.6kts
14.6kts
0.1mm
0%
10°C
7°C
  • ●
  • ●
  • ●
03:00
7.5kts
12.8kts
0mm
0%
10°C
7°C
  • ●
  • ●
  • ●
06:00
10.5kts
16.5kts
0.1mm
7%
11°C
10°C
  • ●
  • ●
  • ●
09:00
12.5kts
21.1kts
0mm
2%
13°C
12°C
  • ●
  • ●
  • ●
12:00
12.8kts
20.2kts
0mm
4%
13°C
13°C
  • ●
  • ●
  • ●
15:00
10.9kts
17kts
0mm
14%
14°C
13°C
  • ●
  • ●
  • ●
18:00
5.2kts
8.2kts
0mm
12%
11°C
11°C
  • ●
  • ●
  • ●
21:00
4.6kts
5.5kts
0mm
31%
12°C
11°C
  • ●
  • ●
  • ●

Sunrise: 06:57 / Sunset: 16:54 Twilight: 06:22 / 17:28

Thursday 29 October

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
5.6kts
7kts
0mm
33%
12°C
10°C
  • ●
  • ●
  • ●
03:00
4.1kts
5.1kts
0mm
7%
10°C
9°C
  • ●
  • ●
  • ●
06:00
4.5kts
6.1kts
0mm
7%
10°C
8°C
  • ●
  • ●
  • ●
09:00
5.6kts
11kts
0mm
61%
12°C
10°C
  • ●
  • ●
  • ●
12:00
10.7kts
15.3kts
0.1mm
37%
14°C
13°C
  • ●
  • ●
  • ●
15:00
10kts
16kts
0mm
7%
13°C
13°C
  • ●
  • ●
  • ●
18:00
6.9kts
11.3kts
0mm
4%
11°C
10°C
  • ●
  • ●
  • ●
21:00
7.1kts
11.9kts
0mm
0%
10°C
7°C
  • ●
  • ●
  • ●

Sunrise: 06:59 / Sunset: 16:52 Twilight: 06:24 / 17:27

Friday 30 October

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
5.2kts
7.8kts
0mm
1%
10°C
8°C
  • ●
  • ●
  • ●
03:00
5.1kts
7.5kts
0mm
1%
10°C
8°C
  • ●
  • ●
  • ●
06:00
5.3kts
9.8kts
0mm
0%
10°C
8°C
  • ●
  • ●
  • ●
09:00
6.9kts
18.5kts
0mm
0%
12°C
10°C
  • ●
  • ●
  • ●
12:00
10.6kts
21kts
0.2mm
4%
13°C
13°C
  • ●
  • ●
  • ●
15:00
10kts
20.5kts
0.1mm
38%
13°C
13°C
  • ●
  • ●
  • ●
18:00
11.6kts
23.1kts
0.2mm
51%
13°C
13°C
  • ●
  • ●
  • ●
21:00
11.9kts
23.2kts
1.1mm
58%
14°C
13°C
  • ●
  • ●
  • ●

Sunrise: 07:00 / Sunset: 16:50 Twilight: 06:25 / 17:25

Saturday 31 October

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
7kts
12.7kts
3.4mm
75%
14°C
13°C
  • ●
  • ●
  • ●
03:00
6kts
10.8kts
0.1mm
12%
12°C
11°C
  • ●
  • ●
  • ●
06:00
4.1kts
8.4kts
0.1mm
11%
12°C
11°C
  • ●
  • ●
  • ●
09:00
5.6kts
8.6kts
0mm
4%
12°C
11°C
  • ●
  • ●
  • ●
12:00
5.6kts
8.4kts
0mm
2%
13°C
12°C
  • ●
  • ●
  • ●
15:00
5.8kts
9kts
0mm
1%
13°C
12°C
  • ●
  • ●
  • ●
18:00
5.4kts
7.8kts
0mm
1%
11°C
10°C
  • ●
  • ●
  • ●
21:00
4.9kts
8kts
0mm
0%
9°C
9°C
  • ●
  • ●
  • ●

Sunrise: 07:02 / Sunset: 16:48 Twilight: 06:27 / 17:23

Sunday 1 November

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
4.7kts
6kts
0mm
0%
9°C
7°C
  • ●
  • ●
  • ●
03:00
4.7kts
8.1kts
0mm
0%
9°C
7°C
  • ●
  • ●
  • ●
06:00
4.8kts
8.8kts
0mm
0%
8°C
6°C
  • ●
  • ●
  • ●
09:00
5.6kts
16.7kts
0mm
0%
11°C
7°C
  • ●
  • ●
  • ●
12:00
10.8kts
14.6kts
0mm
0%
13°C
10°C
  • ●
  • ●
  • ●
15:00
8.8kts
12.5kts
0mm
0%
12°C
11°C
  • ●
  • ●
  • ●
18:00
7.6kts
11.5kts
0mm
0%
9°C
5°C
  • ●
  • ●
  • ●
21:00
4.7kts
6.9kts
0mm
1%
8°C
6°C
  • ●
  • ●
  • ●

Sunrise: 07:04 / Sunset: 16:46 Twilight: 06:29 / 17:21

Monday 2 November

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
4.8kts
5.8kts
0mm
0%
8°C
6°C
  • ●
  • ●
  • ●
03:00
4kts
4.6kts
0mm
0%
8°C
6°C
  • ●
  • ●
  • ●
06:00
5.1kts
6.1kts
0mm
0%
9°C
6°C
  • ●
  • ●
  • ●
09:00
6.5kts
11.2kts
0mm
1%
11°C
6°C
  • ●
  • ●
  • ●
12:00
8.4kts
15.3kts
0.1mm
14%
13°C
11°C
  • ●
  • ●
  • ●
15:00
8.1kts
16.2kts
0mm
89%
12°C
12°C
  • ●
  • ●
  • ●
18:00
5.8kts
7.5kts
0mm
67%
10°C
10°C
  • ●
  • ●
  • ●
21:00
4.9kts
6.5kts
0mm
10%
11°C
9°C
  • ●
  • ●
  • ●

Sunrise: 07:06 / Sunset: 16:44 Twilight: 06:30 / 17:20

Tuesday 3 November

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
4kts
6.3kts
0mm
12%
10°C
9°C
  • ●
  • ●
  • ●
03:00
4.3kts
4.9kts
0mm
0%
10°C
8°C
  • ●
  • ●
  • ●
06:00
3.6kts
4.2kts
0mm
0%
9°C
8°C
  • ●
  • ●
  • ●
09:00
3kts
5.1kts
0mm
0%
11°C
9°C
  • ●
  • ●
  • ●
12:00
6.4kts
9kts
0mm
0%
13°C
11°C
  • ●
  • ●
  • ●
15:00
5.1kts
7.8kts
0mm
0%
13°C
12°C
  • ●
  • ●
  • ●
18:00
4.5kts
6.3kts
0mm
0%
9°C
9°C
  • ●
  • ●
  • ●
21:00
5.3kts
7.3kts
0mm
0%
9°C
8°C
  • ●
  • ●
  • ●

Sunrise: 07:07 / Sunset: 16:43 Twilight: 06:32 / 17:18

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