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Crab Island Surf Forecast
/ Wales – Gower (29 surf breaks) /
Surf Forecasts:
Crab Island surfForecast / Wales – Gower / UK
48hr Weather and Surf, issued 6 pm Monday 18 May 2026 BSTForecast update in hr min s Forecast update imminent
Crab Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Crab Island sea temperature is
12.8° C
(Which is 1.4°C warmer than normal for this time of year)How big are the waves at Crab Island today?
The current surf forecast for Crab Island at 10PM is: 1.2m 6s primary swell from a Southwest direction and 0.3m 10s secondary swell from a West-southwest direction, 0.2m 10s secondary swell from a West-southwest direction (forecast issued at 06:00pm May 18). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | - | - |
| Afternoon (18 May) | 4.5ft (1.4m) | 7s |
| Evening (18 May) | 4ft (1.2m) | 6s |
Table - waves today at Crab Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 20mm), heaviest during Mon night. Very mild (max 16°C on Thu morning, min 11°C on Mon afternoon). Winds decreasing (strong winds from the SW on Tue night, light winds from the SE by Thu morning). | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 7 | WSW 7 | SW 6 | SW 6 | SW 7 | SW 8 | SW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 9 | WSW 10 | W 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 10 | |
180 | 134 | 116 | 166 | 277 | 344 | 371 | 458 | 541 | 717 | 869 | 1083 | 1320 | 2707 | 2211 | 1901 | 1514 | 1198 | 880 | 725 | 550 | 512 | 401 | 365 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | |
High Tide | 8:22PM9.58m | 8:51AM9.39m | 9:10PM9.41m | 9:40AM9.09m | 9:59PM9.09m | 10:31AM8.67m | ||||||||||||||||||
Low Tide | 2:03PM1.05m | 2:28AM1.10m | 2:49PM1.23m | 3:17AM1.32m | 3:37PM1.56m | 4:09AM1.67m | ||||||||||||||||||
 | |  | | | | | |  | | |  | | |  | | | |  |  |  |  | | | |
 | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:16 | — | — | — |
 | — | 9:05 | — | — | — | — | — | — | — | 9:06 | — | — | — | — | — | — | — | 9:07 | — | — | — | — | — | 9:08 |
1 | 2 | 4 | 2 | 3 | 1 | 1 | 1 | — | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 11 | 11 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 16 |
6 | 6 | 5 | 6 | 6 | 7 | 7 | 6 | 5 | 4 | 4 | 4 | 5 | 6 | 6 | 8 | 8 | 9 | 11 | 11 | 11 | 11 | 12 | 15 | |
Swell 1 Height (m) Direction Period (s) | WSW 7 | WSW 7 | WSW 10 | WSW 6 | WSW 8 | W 19 | — | W 15 | — | — | WSW 17 | W 16 | W 15 | W 14 | — | — | — | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 10 |
 kJ | 180 | 134 | 19 | 78 | 151 | 7 | — | 4 | — | — | 58 | 188 | 465 | 2394 | — | — | — | 1198 | 880 | 725 | 550 | 512 | 401 | 365 |
Swell 2 Height (m) Direction Period (s) | W 10 | WSW 10 | WSW 10 | — | — | — | — | — | — | — | W 13 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 19 | 10 | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | SW 6 | SW 6 | SW 7 | SW 8 | SW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 9 | WSW 10 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | — | — | — | — | — | — |
| kJ | — | — | 116 | 166 | 277 | 344 | 371 | 458 | 541 | 717 | 869 | 1083 | 1320 | 2707 | 2211 | 1901 | 1514 | 894 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 68 | 253 | 273 | 427 | 433 | 433 | 450 | 437 | 361 | 386 | 386 | 397 | 416 | 320 | 320 | 431 | 182 | 133 | 47 | 68 | 39 | 19 | 19 | 19 |
Best forecast wave conditions in Wales - Gower | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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