Surf Forecasts:
How big are the waves at Crab Island today (30 Aug):
- Afternoon surf: Afternoon surf (30 Aug, local time) - 5.5ft (1.7m), 6s period with WSW swell.
- Evening surf: Evening surf (30 Aug, local time) - 6.5ft (2.0m), 8s period with WSW swell.
The current surf forecast for Crab Island at 9PM is: 2.0m 8s primary swell from a West-southwest direction (forecast issued at 06:00pm August 30). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Aug) | - | - |
| Afternoon (30 Aug) | 5.5ft (1.7m) | 6s |
| Evening (30 Aug) | 6.5ft (2.0m) | 8s |
Table - waves today at Crab Island. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 20mm), heaviest during Sun night. Very mild (max 17°C on Sun afternoon, min 15°C on Sun night). Winds increasing (light winds from the W on Mon night, fresh winds from the SW by Wed morning). | |||||||||||||||||||
Sun 30 | Monday 31 | Tuesday 1 | |||||||||||||||||
4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | WSW 6 | WSW 8 | WSW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | W 9 | WSW 9 | WSW 8 | WSW 8 | WSW 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 209 | 382 | 488 | 634 | 761 | 775 | 655 | 614 | 614 | 481 | 375 | 276 | 220 | 173 | 39 | 103 | 103 | 94 | 71 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | cross | cross-on | cross-on | cross | cross |
High Tide | 8:42PM9.58m | 8:57AM9.36m | 9:15PM9.49m | 9:28AM9.22m | 9:48PM9.24m | ||||||||||||||
Low Tide | 2:23PM1.21m | 2:43AM1.09m | 2:54PM1.23m | 3:14AM1.21m | 3:24PM1.39m | ||||||||||||||
 | |  | |  |  | | | | |  | |  |  |  | | | | | |
 | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — |
 | — | 8:07 | — | — | — | — | — | — | — | 8:05 | — | — | — | — | — | — | — | 8:02 | — |
mm | 6 | 1 | 7 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 16 | 17 | 17 | 17 | 17 |
Feels °C | 12 | 13 | 10 | 12 | 11 | 10 | 11 | 12 | 11 | 12 | 13 | 14 | 14 | 13 | 13 | 13 | 13 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | WSW 9 | — | — | WSW 10 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | W 9 | — | W 18 | W 17 | SW 16 |
| kJ | — | — | — | — | — | — | 655 | — | — | 481 | 375 | 276 | 220 | 173 | 39 | — | 6 | 6 | 11 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 16 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 6 | WSW 8 | WSW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 10 | WSW 10 | — | — | — | — | — | WSW 6 | WSW 9 | WSW 8 | WSW 8 | WSW 8 |
| kJ | 209 | 382 | 488 | 634 | 761 | 775 | 466 | 614 | 614 | — | — | — | — | — | 36 | 103 | 103 | 94 | 71 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 273 | 421 | 253 | 176 | 74 | 50 | 650 | 775 | 361 | 120 | 50 | 144 | 136 | 68 | 68 | 1 | 112 | 183 | 183 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
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