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Surf Forecasts:
Gwithian surfForecast / Cornwall (North) / UK
48hr Weather and Surf, issued 11 pm Thursday 11 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 7AM is: 4.5m 15s primary swell from a West direction (forecast issued at 11:00pm December 11). An open ocean swell of 0.4m 5s is not directed at the surf break. The wind direction is predicted to be onshore and the swell rating is 11.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 16ft (5.0m) | 18s |
| Afternoon (12 Dec) | 18ft (5.5m) | 19s |
| Evening (12 Dec) | 16ft (5.0m) | 18s |
Table - waves today at Gwithian. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| 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 | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 16 | 15 | 15 | 18 | 19 | 19 | 18 | 18 | 18 | 17 | 16 | 16 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 8200 | 10402 | 8874 | 8497 | 15945 | 19787 | 19808 | 16734 | 14774 | 12760 | 10529 | 7776 | 6040 | 4780 | 3471 | 2886 | 2676 | 2914 | 2587 | 3153 | 3440 | 4240 | 4651 | 4902 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | on | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross- off | cross- off |
High Tide / height (m) | 10:18PM 4.79 | 10:46AM 4.97 | 11:23PM 4.59 | 11:52AM 4.76 | 12:30AM 4.55 | 12:57PM 4.70 | ||||||||||||||||||
Low Tide / height (m) | 4:40AM 1.62 | 5:22PM 1.60 | 5:44AM 1.81 | 6:25PM 1.72 | 6:50AM 1.86 | |||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 8:11 | - | - | - | - | - | - | - | 8:11 | - | - | - | - | - | - | - | 8:12 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:17 | - | - | - | - | - | - | - | 4:17 | - | - | - | - | - | - | - | 4:17 | - |
 | | |  |  | | |  | |  | | |  | | | | | | | |  | | | | |
Rain (mm) | 1 | 3 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 11 | 11 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 12 |
| Feels °C (?) | 5 | 9 | 4 | 6 | 8 | 8 | 7 | 8 | 8 | 7 | 7 | 7 | 6 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 4 | 4 | 5 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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