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Surf Forecasts:
Crab Island surfForecast / Wales – Gower / UK
48hr Weather and Surf, issued 5 pm Wednesday 10 Dec 2025 GMTForecast 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
10.2° C
(Which is 1.0°C colder than average for this time of year)How big are the waves at Crab Island today?
The current surf forecast for Crab Island at 1AM is: 2.2m 14s primary swell from a West-southwest direction and 1.0m 15s secondary swell from a West-southwest direction (forecast issued at 05:00pm December 10). The wind direction is predicted to be onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 7.5ft (2.3m) | 10s |
| Afternoon (11 Dec) | 8ft (2.5m) | 12s |
| Evening (11 Dec) | 10ft (3.0m) | 14s |
Table - waves today at Crab Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 11 | 15 | 14 | 13 | 10 | 11 | 12 | 14 | 14 | 14 | 14 | 14 | 14 | 18 | 18 | 18 | 17 | 17 | 17 | 16 | 9 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1846 | 1377 | 1107 | 2441 | 1262 | 1780 | 1154 | 1413 | 1900 | 3209 | 3020 | 2573 | 2522 | 2297 | 2329 | 3547 | 3952 | 3432 | 3354 | 3388 | 3269 | 3237 | 1581 | 2331 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- on | on | on | on | on | on | on | on | on | on | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross- on |
High Tide / height (m) | 10:31PM 8.08 | 10:52AM 8.17 | 11:26PM 7.68 | 11:50AM 7.81 | 12:27AM 7.42 | |||||||||||||||||||
Low Tide / height (m) | 4:16PM 2.42 | 4:30AM 2.73 | 5:13PM 2.79 | 5:30AM 3.06 | 6:14PM 3.05 | 6:35AM 3.24 | ||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 8:11 | - | - | - | - | - | - | - | 8:11 | - | - | - | - | - | - | - | 8:12 | - |
| Sunset | 4:06 | - | - | - | - | - | - | - | 4:06 | - | - | - | - | - | - | - | 4:06 | - | - | - | - | - | - | - |
 |  | | | | | |  |  |  | | | | | | | |  | | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - | - | 1 | 2 | 2 |
| Temp. °C | 11 | 11 | 10 | 9 | 10 | 10 | 10 | 12 | 12 | 12 | 11 | 11 | 8 | 9 | 9 | 10 | 10 | 10 | 10 | 9 | 10 | 10 | 11 | 12 |
| Feels °C (?) | 4 | 5 | 4 | 3 | 4 | 4 | 4 | 6 | 6 | 6 | 5 | 6 | 3 | 5 | 7 | 6 | 5 | 5 | 4 | 2 | 3 | 1 | 1 | 3 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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