Swansea Bay Wind and Wave Forecast
GFS 0.25° wind, atmospheric and GFSWave 0.25° forecast data for Swansea Bay.
Sunday 23 August (Today)
| Wind | Gust | Dir | Cloud | Mid | High | Rain | Temp | Swell | Period | Dir | Wave | Period | Dir | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 01:00 | 4.4kts | 4.5kts | | 1% | 0% | 2% | 0mm | 12.4°C | 0.5m | 8.9sec | | 0.4m | 2.9sec | |
| 04:00 | 6.1kts | 7.3kts | | 0% | 0% | 0% | 0mm | 11.7°C | 0.4m | 8.7sec | | 0.3m | 2.6sec | |
| 07:00 | 7.2kts | 7.4kts | | 0% | 0% | 0% | 0mm | 12.2°C | 0.3m | 8.5sec | | 0.2m | 2.3sec | |
| 10:00 | 7.8kts | 7.5kts | | 0% | 0% | 0% | 0mm | 19.7°C | 0.3m | 8.7sec | | 0.2m | 2.3sec | |
| 13:00 | 5kts | 7.7kts | | 0% | 0% | 0% | 0mm | 22.2°C | 0.3m | 8.8sec | | 0.1m | 1.3sec | |
| 16:00 | 6.2kts | 8.8kts | | 0% | 0% | 0% | 0mm | 21.4°C | 0.3m | 12sec | | -1m | -1sec | |
| 19:00 | 3.3kts | 9kts | | 1% | 0% | 0% | 0mm | 17.7°C | 0.4m | 12sec | | 0.1m | 2sec | |
| 22:00 | 0.1kts | 4.6kts | | 0% | 0% | 3% | 0mm | 12.9°C | 0.4m | 10.9sec | | 0.3m | 2.3sec | |
06:12 / 20:24 05:36 / 21:00
°C
Today's tide data
| Time | Height (m) |
|---|---|
| 02:58:27 | H +6.69 |
| 09:21:34 | L +3.79 |
| 15:48:13 | H +7.01 |
| 22:00:19 | L +3.49 |
Tide chart for Mumbles
Tide times vary with distance to report location; all times incorporate BST; for more tide information click here
Monday 24 August (Tomorrow)
| Wind | Gust | Dir | Cloud | Mid | High | Rain | Temp | Swell | Period | Dir | Wave | Period | Dir | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 01:00 | 3.1kts | 4.5kts | | 0% | 0% | 2% | 0mm | 13.2°C | 0.4m | 10.2sec | | 0.2m | 1.9sec | |
| 04:00 | 8.4kts | 10.5kts | | 0% | 0% | 10% | 0mm | 12.5°C | 0.4m | 9.9sec | | 0.3m | 2.1sec | |
| 07:00 | 11.8kts | 16kts | | 0% | 0% | 31% | 0mm | 13°C | 0.7m | 8.3sec | | 0.6m | 3.3sec | |
| 10:00 | 17.2kts | 23.2kts | | 0% | 2% | 87% | 0mm | 18.1°C | 1m | 4.3sec | | 0.9m | 4.2sec | |
| 13:00 | 15.6kts | 20.3kts | | 1% | 16% | 93% | 0mm | 20.7°C | 0.9m | 4.6sec | | 0.9m | 4.4sec | |
| 16:00 | 11.6kts | 16.3kts | | 2% | 81% | 98% | 0mm | 21.1°C | 0.6m | 4.3sec | | 0.6m | 4.1sec | |
| 19:00 | 9.7kts | 16.2kts | | 10% | 90% | 94% | 0mm | 19.6°C | 0.4m | 9sec | | 0.4m | 3.6sec | |
| 22:00 | 13.7kts | 26.1kts | | 6% | 32% | 12% | 0.1mm | 16°C | 0.8m | 3.7sec | | 0.7m | 3.6sec | |
06:14 / 20:22 05:37 / 20:58
Tuesday 25 August
| Wind | Gust | Dir | Cloud | Mid | High | Rain | Temp | Swell | Period | Dir | Wave | Period | Dir | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 01:00 | 17.8kts | 29.2kts | | 14% | 48% | 30% | 0.1mm | 15.5°C | 1m | 4.5sec | | 0.9m | 4.5sec | |
| 04:00 | 18kts | 27.3kts | | 40% | 34% | 61% | 0mm | 14.9°C | 1m | 4.7sec | | 1m | 4.7sec | |
| 07:00 | 18.1kts | 27.5kts | | 44% | 33% | 54% | 0mm | 14.9°C | 1.1m | 4.8sec | | 1m | 4.8sec | |
| 10:00 | 20.8kts | 26.7kts | | 88% | 89% | 96% | 0mm | 17.6°C | 1.2m | 5sec | | 1.2m | 5sec | |
| 13:00 | 17.3kts | 21.7kts | | 83% | 92% | 74% | 0mm | 19°C | 1.2m | 5sec | | 1.1m | 5sec | |
| 16:00 | 16.6kts | 22.9kts | | 92% | 51% | 19% | 0.3mm | 17.5°C | 1.1m | 4.8sec | | 1m | 4.8sec | |
| 19:00 | 11.1kts | 16.9kts | | 67% | 37% | 43% | 0.4mm | 18.7°C | 0.7m | 4.5sec | | 0.7m | 4.4sec | |
| 22:00 | 7.9kts | 21.6kts | | 36% | 73% | 74% | 0.2mm | 17.3°C | 0.5m | 9.2sec | | 0.4m | 3.9sec | |
06:15 / 20:20 05:39 / 20:56
Wednesday 26 August
| Wind | Gust | Dir | Cloud | Mid | High | Rain | Temp | Swell | Period | Dir | Wave | Period | Dir | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 01:00 | 6.2kts | 14.3kts | | 28% | 63% | 66% | 0.3mm | 15.2°C | 0.6m | 9.3sec | | 0.4m | 3sec | |
| 04:00 | 4.2kts | 7.9kts | | 43% | 10% | 43% | 0mm | 15.4°C | 0.6m | 9.1sec | | 0.4m | 3.1sec | |
| 07:00 | 3.8kts | 6kts | | 43% | 7% | 32% | 0mm | 15.8°C | 0.6m | 8.9sec | | 0.4m | 3.2sec | |
| 10:00 | 5.5kts | 7.3kts | | 49% | 5% | 77% | 0mm | 18.9°C | 0.6m | 8.5sec | | 0.3m | 2.7sec | |
| 13:00 | 7kts | 10.2kts | | 41% | 4% | 86% | 0.1mm | 22.8°C | 0.6m | 8.3sec | | 0.3m | 2.5sec | |
| 16:00 | 7.5kts | 9.8kts | | 59% | 28% | 100% | 1.5mm | 19.8°C | 0.5m | 8sec | | 0.2m | 2.4sec | |
| 19:00 | 6.2kts | 12.2kts | | 39% | 32% | 83% | 3.1mm | 18.1°C | 0.5m | 7.8sec | | 0.2m | 2.7sec | |
| 22:00 | 6.6kts | 11.8kts | | 58% | 93% | 98% | 2.1mm | 16.5°C | 0.7m | 7.3sec | | 0.6m | 3.8sec | |
06:17 / 20:18 05:41 / 20:53
Thursday 27 August
| Wind | Gust | Dir | Cloud | Mid | High | Rain | Temp | Swell | Period | Dir | Wave | Period | Dir | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 01:00 | 5.7kts | 11.2kts | | 47% | 87% | 99% | 3.6mm | 15.8°C | 0.8m | 7.3sec | | 0.4m | 2.9sec | |
| 04:00 | 8.5kts | 13.6kts | | 89% | 98% | 100% | 1.6mm | 15.9°C | 0.9m | 7.3sec | | 0.6m | 3.4sec | |
| 07:00 | 6.1kts | 9.3kts | | 66% | 90% | 94% | 4.3mm | 15.7°C | 0.9m | 7.4sec | | 0.6m | 3.5sec | |
| 10:00 | 12.8kts | 17.7kts | | 19% | 19% | 33% | 0.7mm | 17.9°C | 0.9m | 7.4sec | | 0.8m | 5.5sec | |
| 13:00 | 13.6kts | 17.7kts | | 16% | 11% | 17% | 0.9mm | 20.8°C | 1m | 7.3sec | | 1m | 7.3sec | |
| 16:00 | 11.4kts | 16.4kts | | 15% | 19% | 42% | 1.3mm | 18.5°C | 1m | 6.9sec | | 1m | 6.9sec | |
| 19:00 | 6.6kts | 9.5kts | | 14% | 34% | 47% | 2.8mm | 16.3°C | 1m | 6.7sec | | 1m | 6.7sec | |
| 22:00 | 6.5kts | 9.2kts | | 7% | 44% | 24% | 0.3mm | 14°C | 1m | 6.8sec | | 0.8m | 5.1sec | |
06:18 / 20:15 05:43 / 20:51
Friday 28 August
| Wind | Gust | Dir | Cloud | Mid | High | Rain | Temp | Swell | Period | Dir | Wave | Period | Dir | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 01:00 | 6.6kts | 9.5kts | | 7% | 45% | 27% | 0.4mm | 13.6°C | 1.1m | 8.7sec | | 1m | 8.2sec | |
| 04:00 | 4.9kts | 6.1kts | | 1% | 6% | 24% | 0mm | 13.2°C | 1.1m | 8.4sec | | -1m | -1sec | |
| 07:00 | 6kts | 7kts | | 1% | 5% | 25% | 0mm | 13.3°C | 1.1m | 8.4sec | | -1m | -1sec | |
| 10:00 | 5.4kts | 5.1kts | | 4% | 0% | 20% | 0mm | 17.9°C | 1.1m | 9sec | | -1m | -1sec | |
| 13:00 | 4.6kts | 4.9kts | | 3% | 0% | 34% | 0mm | 21.1°C | 1m | 8.6sec | | -1m | -1sec | |
| 16:00 | 10.5kts | 11.7kts | | 9% | 2% | 35% | 0mm | 20.1°C | 0.9m | 8.4sec | | 0.7m | 6.9sec | |
| 19:00 | 10.2kts | 13.7kts | | 10% | 17% | 44% | 0.1mm | 17.2°C | 0.8m | 8.1sec | | 0.6m | 4.5sec | |
| 22:00 | 8.8kts | 10.9kts | | 8% | 99% | 94% | 0.3mm | 14.1°C | 0.8m | 8.2sec | | 0.6m | 6sec | |
06:20 / 20:13 05:44 / 20:49
Saturday 29 August
| Wind | Gust | Dir | Cloud | Mid | High | Rain | Temp | Swell | Period | Dir | Wave | Period | Dir | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 01:00 | 6.2kts | 8.8kts | | 29% | 82% | 72% | 0.7mm | 13.7°C | 1m | 8.2sec | | 0.6m | 4sec | |
| 04:00 | 13.8kts | 19.7kts | | 22% | 42% | 57% | 1mm | 14.5°C | 1.5m | 7.9sec | | 1.5m | 7sec | |
| 07:00 | 12.1kts | 20.5kts | | 53% | 24% | 39% | 1.3mm | 14.2°C | 1.8m | 7.8sec | | 1.8m | 7.8sec | |
| 10:00 | 16kts | 21.5kts | | 100% | 20% | 67% | 0.6mm | 15.9°C | 1.8m | 7.1sec | | 1.8m | 7.1sec | |
| 13:00 | 18.3kts | 22.6kts | | 90% | 32% | 68% | 1.2mm | 17.2°C | 2m | 7.1sec | | 2m | 7.1sec | |
| 16:00 | 20.5kts | 25.1kts | | 69% | 1% | 11% | 1.1mm | 17.9°C | 2.2m | 7.6sec | | 2.2m | 7.6sec | |
| 19:00 | 19kts | 25kts | | 66% | 0% | 7% | 1.6mm | 16.6°C | 2.4m | 8sec | | 2.4m | 8sec | |
| 22:00 | 18.3kts | 25.1kts | | 81% | 1% | 1% | 0.5mm | 16.3°C | 2.3m | 8.2sec | | 2.3m | 8.2sec | |
06:22 / 20:11 05:46 / 20:46
Sunday 30 August
| Wind | Gust | Dir | Cloud | Mid | High | Rain | Temp | Swell | Period | Dir | Wave | Period | Dir | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 01:00 | 17.8kts | 24.3kts | | 80% | 0% | 3% | 1.3mm | 15.8°C | 2.2m | 8sec | | 2.2m | 8sec | |
| 04:00 | 16.5kts | 22.9kts | | 100% | 1% | 59% | 0.7mm | 15.5°C | 2.1m | 7.7sec | | 2.1m | 7.7sec | |
| 07:00 | 15.3kts | 22.1kts | | 93% | 8% | 48% | 1.5mm | 15.5°C | 2m | 7.4sec | | 2m | 7.4sec | |
06:23 / 20:09 05:48 / 20:44