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Surf Forecasts:
Gwithian surfForecast / Cornwall (North) / UK
48hr Weather and Surf, issued 11 am Wednesday 10 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Gwithian surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Gwithian sea temperature is
12.3° C
(Which is slightly warmer than usual)How big are the waves at Gwithian today?
The current surf forecast for Gwithian at 4PM is: 2.5m 12s primary swell from a West-northwest direction and 2.5m 12s secondary swell from a Southwest direction (forecast issued at 11:00am December 10). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | 13ft (4.0m) | 12s |
| Afternoon (10 Dec) | 8ft (2.5m) | 12s |
| Evening (10 Dec) | 8ft (2.5m) | 15s |
Table - waves today at Gwithian. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| 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 | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 12 | 15 | 14 | 14 | 14 | 13 | 13 | 14 | 14 | 14 | 16 | 15 | 15 | 18 | 19 | 18 | 18 | 18 | 18 | 17 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 4932 | 4001 | 1697 | 1589 | 2831 | 5054 | 3524 | 2299 | 4139 | 3656 | 7535 | 8905 | 8798 | 10152 | 8651 | 8854 | 16596 | 19062 | 18877 | 16549 | 14941 | 12730 | 10478 | 9263 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | on | cross- on | cross- on | on | cross- on | cross | cross | cross | cross | cross- off | cross- off |
High Tide / height (m) | 8:49AM 5.65 | 9:19PM 5.10 | 9:45AM 5.28 | 10:18PM 4.79 | 10:46AM 4.97 | 11:23PM 4.59 | ||||||||||||||||||
Low Tide / height (m) | 3:23PM 1.05 | 3:40AM 1.33 | 4:21PM 1.37 | 4:40AM 1.62 | 5:22PM 1.60 | 5:44AM 1.81 | ||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| Sunrise | 8:08 | - | - | - | - | - | - | - | 8:10 | - | - | - | - | - | - | - | 8:11 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:17 | - | - | - | - | - | - | - | 4:17 | - | - | - | - | - | - | - | 4:17 | - | - | - | - | - |
 | | |  | | | | |  | |  |  |  |  |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 7 | 8 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 11 | 10 | 9 | 9 | 9 | 10 | 11 | 10 | 10 | 10 | 10 | 10 |
| Feels °C (?) | 4 | 5 | 6 | 7 | 6 | 5 | 4 | 4 | 3 | 4 | 5 | 7 | 6 | 8 | 2 | 3 | 5 | 5 | 6 | 6 | 5 | 5 | 5 | 4 |
- 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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