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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.

Swansea Bay Weather Forecast

GFS 0.5° atmospheric and GFSWave 0.25° marine forecast data for Swansea Bay.

Saturday 24 October (Today)

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
13:00
28.7kts
44.7kts
3.3m
8sec
-1mm
-1%
14°C
12°C
  • ●
  • ●
  • ●
16:00
33.7kts
50.6kts
4.3m
9.6sec
13mm
100%
15°C
15°C
  • ●
  • ●
  • ●
19:00
29.4kts
42.9kts
4.7m
11.3sec
16.1mm
100%
15°C
14°C
  • ●
  • ●
  • ●
22:00
29.4kts
42.2kts
4.5m
11.8sec
1.3mm
67%
13°C
11°C
  • ●
  • ●
  • ●

Sunrise: 07:54 / Sunset: 18:06 Twilight: 07:19 / 18:40

°C

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Today's tide data

Time Height (m)
05:37:05 H +8.73
11:42:13 L +1.89
17:55:19 H +9.14
00:01:46 L +1.53

Tide chart for Mumbles

Bigsalty Tide Charts

Tide times vary with distance to report location; all times incorporate BST; for more tide information click here

Sunday 25 October (Tomorrow)

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
01:00
31.3kts
43kts
4.6m
11.9sec
1.3mm
34%
13°C
11°C
  • ●
  • ●
  • ●
04:00
32kts
42.4kts
4.5m
11.8sec
0mm
0%
13°C
11°C
  • ●
  • ●
  • ●
07:00
30.1kts
41kts
4.3m
11.6sec
0.1mm
3%
13°C
11°C
  • ●
  • ●
  • ●
10:00
28.8kts
39.7kts
4.1m
11.2sec
0.1mm
0%
13°C
11°C
  • ●
  • ●
  • ●
13:00
29.4kts
39.8kts
3.8m
10.8sec
0.3mm
0%
14°C
11°C
  • ●
  • ●
  • ●
16:00
23.2kts
30.8kts
3.3m
11.1sec
0.2mm
3%
14°C
11°C
  • ●
  • ●
  • ●
19:00
18.7kts
26.6kts
2.7m
11.4sec
0.2mm
1%
13°C
11°C
  • ●
  • ●
  • ●
22:00
18kts
24.2kts
2.3m
11.6sec
0mm
3%
13°C
11°C
  • ●
  • ●
  • ●

Sunrise: 07:55 / Sunset: 18:04 Twilight: 07:21 / 18:38

Monday 26 October

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
01:00
13.1kts
17.5kts
2m
11.6sec
0.1mm
3%
13°C
11°C
  • ●
  • ●
  • ●
04:00
14.2kts
16.2kts
1.9m
11.5sec
0mm
4%
13°C
11°C
  • ●
  • ●
  • ●
07:00
16.6kts
25.6kts
2m
11.3sec
2.1mm
20%
13°C
11°C
  • ●
  • ●
  • ●
10:00
23.3kts
37kts
2.5m
7sec
4.5mm
100%
14°C
13°C
  • ●
  • ●
  • ●
13:00
26.5kts
39kts
3m
8.2sec
8.9mm
100%
15°C
15°C
  • ●
  • ●
  • ●
16:00
23.5kts
35.2kts
3.2m
9.4sec
0.1mm
100%
15°C
15°C
  • ●
  • ●
  • ●
19:00
22.8kts
36.1kts
3.4m
10.2sec
0.6mm
98%
15°C
15°C
  • ●
  • ●
  • ●
22:00
24.5kts
37.7kts
3.6m
10.7sec
0.3mm
65%
15°C
16°C
  • ●
  • ●
  • ●

Sunrise: 07:57 / Sunset: 18:02 Twilight: 07:22 / 18:36

Tuesday 27 October

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
01:00
29.7kts
45.9kts
4.2m
10.9sec
0.9mm
57%
15°C
16°C
  • ●
  • ●
  • ●
04:00
29.9kts
39.2kts
4.3m
11.8sec
2.7mm
94%
15°C
15°C
  • ●
  • ●
  • ●
07:00
25.9kts
35.8kts
4m
12.3sec
3.8mm
54%
14°C
13°C
  • ●
  • ●
  • ●
10:00
24kts
29.9kts
3.9m
12.5sec
0.9mm
8%
14°C
12°C
  • ●
  • ●
  • ●
13:00
22.6kts
28.1kts
3.7m
12.5sec
1.7mm
4%
14°C
12°C
  • ●
  • ●
  • ●
16:00
23.4kts
27.9kts
3.7m
12.4sec
0.2mm
0%
14°C
12°C
  • ●
  • ●
  • ●
19:00
18.7kts
25.6kts
3.4m
12.5sec
0.5mm
0%
13°C
11°C
  • ●
  • ●
  • ●
22:00
17.9kts
24.7kts
3.2m
12.7sec
0.2mm
0%
13°C
11°C
  • ●
  • ●
  • ●

Sunrise: 07:59 / Sunset: 18:00 Twilight: 07:24 / 18:34

Wednesday 28 October

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
01:00
15.9kts
21.8kts
2.9m
12.8sec
0.4mm
0%
13°C
11°C
  • ●
  • ●
  • ●
04:00
17kts
22.1kts
2.8m
12.8sec
0.2mm
1%
13°C
12°C
  • ●
  • ●
  • ●
07:00
17.1kts
22.1kts
2.6m
12.8sec
0.4mm
2%
13°C
12°C
  • ●
  • ●
  • ●
10:00
16.3kts
20.7kts
2.3m
12.6sec
0.1mm
5%
14°C
13°C
  • ●
  • ●
  • ●
13:00
16.7kts
20kts
2.1m
12.3sec
0.3mm
6%
15°C
14°C
  • ●
  • ●
  • ●
16:00
15kts
18.4kts
2m
11.8sec
0.4mm
17%
15°C
14°C
  • ●
  • ●
  • ●
19:00
12.4kts
15.3kts
1.8m
11.6sec
0.8mm
17%
14°C
13°C
  • ●
  • ●
  • ●
22:00
9.9kts
11.6kts
1.6m
11.2sec
0.1mm
13%
13°C
13°C
  • ●
  • ●
  • ●

Sunrise: 08:01 / Sunset: 17:58 Twilight: 07:26 / 18:33

Thursday 29 October

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
01:00
9.1kts
9.5kts
1.5m
10.9sec
0.2mm
18%
14°C
12°C
  • ●
  • ●
  • ●
04:00
6.3kts
8.4kts
1.4m
10.7sec
0.1mm
24%
14°C
12°C
  • ●
  • ●
  • ●
07:00
6.8kts
7.4kts
1.3m
10.4sec
0.1mm
17%
13°C
11°C
  • ●
  • ●
  • ●
10:00
9.7kts
15.7kts
1.2m
10.3sec
0mm
2%
14°C
12°C
  • ●
  • ●
  • ●
13:00
13.6kts
18.7kts
1.3m
10sec
0.1mm
12%
14°C
13°C
  • ●
  • ●
  • ●
16:00
16kts
19.9kts
1.4m
8.2sec
0mm
4%
14°C
13°C
  • ●
  • ●
  • ●
19:00
16.8kts
23.4kts
1.5m
6.8sec
0mm
2%
13°C
12°C
  • ●
  • ●
  • ●
22:00
14.8kts
23.2kts
1.5m
7.4sec
0mm
0%
13°C
12°C
  • ●
  • ●
  • ●

Sunrise: 08:02 / Sunset: 17:56 Twilight: 07:27 / 18:31

Friday 30 October

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
01:00
15.5kts
23.6kts
1.6m
8.3sec
0mm
0%
13°C
13°C
  • ●
  • ●
  • ●
04:00
15.5kts
24.1kts
1.7m
9.2sec
0mm
0%
14°C
13°C
  • ●
  • ●
  • ●
07:00
14.1kts
23.7kts
1.9m
10.2sec
0mm
2%
14°C
13°C
  • ●
  • ●
  • ●
10:00
12.9kts
23.7kts
2.2m
11sec
1.8mm
43%
14°C
13°C
  • ●
  • ●
  • ●
13:00
14.1kts
26.2kts
2.3m
11.5sec
3.8mm
71%
14°C
14°C
  • ●
  • ●
  • ●
16:00
14.2kts
25.8kts
2.2m
11.2sec
3.2mm
85%
15°C
14°C
  • ●
  • ●
  • ●
19:00
7.5kts
10.4kts
1.9m
11.4sec
4.8mm
92%
14°C
13°C
  • ●
  • ●
  • ●
22:00
8.1kts
10.9kts
1.7m
11.2sec
0mm
53%
14°C
13°C
  • ●
  • ●
  • ●

Sunrise: 08:04 / Sunset: 17:54 Twilight: 07:29 / 18:29

Saturday 31 October

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
01:00
9.3kts
13kts
1.6m
11.1sec
0.1mm
38%
13°C
12°C
  • ●
  • ●
  • ●
04:00
7.4kts
10.1kts
1.5m
11sec
0mm
0%
12°C
10°C
  • ●
  • ●
  • ●
07:00
4.9kts
6.5kts
1.4m
10.8sec
0mm
0%
12°C
10°C
  • ●
  • ●
  • ●
10:00
4.3kts
6.5kts
1.4m
10.6sec
0mm
1%
13°C
10°C
  • ●
  • ●
  • ●
13:00
5.8kts
8.4kts
1.3m
10.6sec
0mm
0%
14°C
12°C
  • ●
  • ●
  • ●
16:00
4.4kts
5.8kts
1.2m
10.6sec
0mm
0%
14°C
13°C
  • ●
  • ●
  • ●
19:00
4.5kts
4.5kts
1.1m
10.7sec
0mm
0%
12°C
11°C
  • ●
  • ●
  • ●
22:00
5.3kts
5kts
1.1m
10.8sec
0mm
0%
12°C
10°C
  • ●
  • ●
  • ●

Sunrise: 08:06 / Sunset: 17:52 Twilight: 07:31 / 18:27

Sunday 1 November

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
01:00
5.4kts
5kts
1m
10.8sec
0mm
0%
12°C
9°C
  • ●
  • ●
  • ●

Sunrise: 08:08 / Sunset: 17:50 Twilight: 07:32 / 18:26

Wind angle today

Explore other spots in a w wind direction.

w locations >>
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