Swansea Bay Weather Forecast
GFS 50km atmospheric and NWW3 100km marine forecast data for Swansea Bay.
Tuesday 13 April (Today)
Wind | Gust | Swell | Period | Rain | Cloud | Temp | Chill | [Wind rating] | |||
---|---|---|---|---|---|---|---|---|---|---|---|
01:00 | 4.4kts | 4.4kts | 0.3m | 4.5sec | 0mm | 4% | 5°C | 4°C |
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04:00 | 3kts | 2.6kts | 0.3m | 7.9sec | 0mm | 4% | 5°C | 4°C |
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07:00 | 3.4kts | 2.9kts | 0.3m | 13.7sec | 0mm | 3% | 6°C | 4°C |
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10:00 | 3.3kts | 3.2kts | 0.2m | 13.1sec | 0mm | 18% | 8°C | 5°C |
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13:00 | 1.8kts | 2.5kts | 0.2m | 12.7sec | 0.1mm | 17% | 9°C | 6°C |
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16:00 | 2.5kts | 2.6kts | 0.2m | 12.5sec | 0.1mm | 6% | 9°C | 7°C |
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19:00 | 4.6kts | 6.5kts | 0.2m | 12.2sec | 0.3mm | 5% | 8°C | 8°C |
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22:00 | 4kts | 4.4kts | 0.2m | 11.9sec | 0mm | 0% | 6°C | 6°C |
|
06:21 / 20:11 05:46 / 20:46
°C
Today's tide data
Time | Height (m) |
---|---|
01:48:19 | L +1.28 |
08:04:34 | H +9.35 |
14:02:46 | L +1.2 |
20:16:35 | H +9.23 |
Tide chart for Mumbles

Tide times vary with distance to report location; all times incorporate BST; for more tide information click here
Wednesday 14 April (Tomorrow)
Wind | Gust | Swell | Period | Rain | Cloud | Temp | Chill | [Wind rating] | |||
---|---|---|---|---|---|---|---|---|---|---|---|
01:00 | 4.5kts | 4.2kts | 0.2m | 11.7sec | 0mm | 0% | 6°C | 5°C |
| ||
04:00 | 4.2kts | 3.9kts | 0.2m | 11.7sec | 0mm | 1% | 6°C | 5°C |
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07:00 | 4.6kts | 5.1kts | 0.2m | 12.8sec | 0mm | 1% | 6°C | 5°C |
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10:00 | 4.2kts | 5.3kts | 0.2m | 13.4sec | 0mm | 1% | 9°C | 7°C |
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13:00 | 6.4kts | 6.9kts | 0.2m | 13.4sec | 0.1mm | 2% | 9°C | 6°C |
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16:00 | 3.7kts | 5.3kts | 0.2m | 13.3sec | 0.2mm | 2% | 9°C | 8°C |
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19:00 | 4.3kts | 5.5kts | 0.2m | 13sec | 0.4mm | 2% | 8°C | 9°C |
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22:00 | 5.5kts | 6.1kts | 0.2m | 12.6sec | 0mm | 0% | 7°C | 7°C |
|
06:19 / 20:12 05:43 / 20:48
Thursday 15 April
Wind | Gust | Swell | Period | Rain | Cloud | Temp | Chill | [Wind rating] | |||
---|---|---|---|---|---|---|---|---|---|---|---|
01:00 | 6.9kts | 8.2kts | 0.2m | 12.4sec | 0mm | 0% | 6°C | 3°C |
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04:00 | 6.4kts | 7.1kts | 0.3m | 11.3sec | 0mm | 0% | 5°C | 1°C |
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07:00 | 8.2kts | 9.1kts | 0.4m | 6.6sec | 0mm | 0% | 6°C | 0°C |
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10:00 | 8.5kts | 9.1kts | 0.4m | 5.6sec | 0mm | 1% | 8°C | 2°C |
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13:00 | 7.7kts | 8.8kts | 0.4m | 10.7sec | 0mm | 3% | 9°C | 5°C |
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16:00 | 2.8kts | 5.5kts | 0.4m | 10.9sec | 0mm | 3% | 9°C | 8°C |
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19:00 | 3.6kts | 7.7kts | 0.3m | 11.8sec | 0.1mm | 2% | 8°C | 7°C |
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22:00 | 7.4kts | 11.3kts | 0.3m | 11.5sec | 0mm | 0% | 6°C | 3°C |
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06:17 / 20:14 05:41 / 20:50
Friday 16 April
Wind | Gust | Swell | Period | Rain | Cloud | Temp | Chill | [Wind rating] | |||
---|---|---|---|---|---|---|---|---|---|---|---|
01:00 | 9.1kts | 12kts | 0.3m | 10.8sec | 0mm | 1% | 6°C | 1°C |
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04:00 | 9.3kts | 11.5kts | 0.5m | 10.5sec | 0mm | 1% | 5°C | -1°C |
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07:00 | 8.2kts | 10.3kts | 0.5m | 10.1sec | 0mm | 1% | 5°C | -1°C |
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10:00 | 10.8kts | 13.3kts | 0.6m | 9.9sec | 0mm | 1% | 8°C | 1°C |
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13:00 | 9kts | 10.5kts | 0.5m | 10sec | 0mm | 0% | 9°C | 4°C |
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16:00 | 6.7kts | 7.6kts | 0.4m | 10sec | 0mm | 0% | 9°C | 6°C |
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19:00 | 2.5kts | 3.5kts | 0.4m | 9.8sec | 0mm | 0% | 8°C | 8°C |
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22:00 | 6.1kts | 6.1kts | 0.4m | 9.6sec | 0mm | 0% | 6°C | 3°C |
|
06:15 / 20:16 05:39 / 20:51
Saturday 17 April
Wind | Gust | Swell | Period | Rain | Cloud | Temp | Chill | [Wind rating] | |||
---|---|---|---|---|---|---|---|---|---|---|---|
01:00 | 5.3kts | 5.6kts | 0.4m | 9.5sec | 0mm | 0% | 6°C | 5°C |
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04:00 | 7.2kts | 8.2kts | 0.4m | 9.3sec | 0mm | 0% | 6°C | 2°C |
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07:00 | 9.3kts | 10.3kts | 0.5m | 9sec | 0mm | 0% | 7°C | 1°C |
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10:00 | 9.9kts | 11.2kts | 0.6m | 8.9sec | 0mm | 0% | 8°C | 3°C |
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13:00 | 7.5kts | 8.4kts | 0.7m | 8.8sec | 0mm | 0% | 9°C | 5°C |
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16:00 | 3.5kts | 3.9kts | 0.6m | 8.9sec | 0mm | 5% | 9°C | 7°C |
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19:00 | 2.1kts | 2.9kts | 0.6m | 9.1sec | 0mm | 7% | 8°C | 7°C |
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22:00 | 1.3kts | 2.4kts | 0.7m | 9.1sec | 0.6mm | 66% | 7°C | 6°C |
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06:12 / 20:17 05:36 / 20:53
Sunday 18 April
Wind | Gust | Swell | Period | Rain | Cloud | Temp | Chill | [Wind rating] | |||
---|---|---|---|---|---|---|---|---|---|---|---|
01:00 | 3.6kts | 5.2kts | 0.8m | 9.1sec | 0.7mm | 71% | 7°C | 6°C |
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04:00 | 6.4kts | 8kts | 1.1m | 9.4sec | 0mm | 7% | 7°C | 4°C |
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07:00 | 6.7kts | 9.4kts | 1.2m | 9.5sec | 0mm | 5% | 7°C | 4°C |
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10:00 | 7.8kts | 11kts | 1.3m | 9.5sec | 0mm | 1% | 8°C | 4°C |
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13:00 | 5.3kts | 8.7kts | 1.3m | 9.2sec | 0mm | 1% | 9°C | 8°C |
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16:00 | 3kts | 5.4kts | 1.3m | 8.9sec | 0.1mm | 12% | 9°C | 9°C |
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19:00 | 7kts | 11.8kts | 1.3m | 8.5sec | 0.1mm | 8% | 9°C | 7°C |
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22:00 | 9.2kts | 15.7kts | 1.2m | 8.3sec | 0mm | 11% | 8°C | 5°C |
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06:10 / 20:19 05:34 / 20:55
Monday 19 April
Wind | Gust | Swell | Period | Rain | Cloud | Temp | Chill | [Wind rating] | |||
---|---|---|---|---|---|---|---|---|---|---|---|
01:00 | 9.7kts | 18.9kts | 1.2m | 7.9sec | 0mm | 7% | 8°C | 5°C |
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04:00 | 10.6kts | 21.7kts | 1.2m | 7.7sec | 1mm | 27% | 8°C | 4°C |
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07:00 | 12.4kts | 22.4kts | 1.3m | 7.7sec | 4.7mm | 63% | 8°C | 4°C |
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10:00 | 9.9kts | 19.3kts | 1.4m | 7.9sec | 3.3mm | 100% | 8°C | 5°C |
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13:00 | 8.2kts | 15.8kts | 1.3m | 7.7sec | 6.7mm | 100% | 9°C | 6°C |
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16:00 | 6.4kts | 8kts | 1.2m | 7.3sec | 0.6mm | 100% | 9°C | 7°C |
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19:00 | 5.9kts | 8.5kts | 1.1m | 7.3sec | 2.1mm | 98% | 9°C | 7°C |
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22:00 | 13.2kts | 19.1kts | 1m | 7.4sec | 0.1mm | 51% | 8°C | 4°C |
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06:08 / 20:21 05:32 / 20:57
Tuesday 20 April
Wind | Gust | Swell | Period | Rain | Cloud | Temp | Chill | [Wind rating] | |||
---|---|---|---|---|---|---|---|---|---|---|---|
01:00 | 14.7kts | 19.5kts | 0.9m | 9sec | 0.1mm | 38% | 7°C | 2°C |
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04:00 | 8.3kts | 10.1kts | 0.8m | 9.4sec | 0mm | 6% | 7°C | 2°C |
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07:00 | 7.4kts | 12kts | 0.7m | 9.3sec | 0mm | 7% | 7°C | 3°C |
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10:00 | 8.1kts | 11.9kts | 0.6m | 9.3sec | 0mm | 1% | 9°C | 5°C |
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13:00 | 4.8kts | 6.1kts | 0.5m | 9.3sec | 0mm | 1% | 10°C | 10°C |
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06:06 / 20:22 05:30 / 20:59