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Trefor Surf Forecast
/ Wales – Lleyn (14 surf breaks) /
Surf Forecasts:
Trefor surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 5 pm Wednesday 21 Jan 2026 GMTForecast update in hr min s Forecast update imminent
Trefor surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Trefor sea temperature is
7.6° C
(Which is slightly cooler than normal)How big are the waves at Trefor today?
The current surf forecast for Trefor at 2AM is: 1.1m 9s primary swell from a Southwest direction and 0.2m 16s secondary swell from a West-southwest direction (forecast issued at 05:00pm January 21). An open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Jan) | 2.5ft (0.7m) | 17s |
| Afternoon (22 Jan) | 2.5ft (0.7m) | 15s |
| Evening (22 Jan) | 3ft (0.9m) | 10s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | |||||||||||||||||||||
| 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) (?) | 9 | 9 | 8 | 8 | 10 | 10 | 17 | 16 | 15 | 15 | 10 | 10 | 9 | 9 | 9 | 18 | 16 | 12 | 16 | 12 | 11 | 11 | 11 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 76 | 76 | 150 | 142 | 200 | 222 | 255 | 223 | 204 | 365 | 148 | 44 | 41 | 41 | 40 | 85 | 278 | 301 | 748 | 963 | 1183 | 945 | 928 | 530 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off | cross- off | cross- off |
High Tide / height (m) | 10:19PM 3.39 | 10:35AM 3.86 | 10:56PM 3.37 | 11:12AM 3.81 | 11:35PM 3.31 | 11:53AM 3.70 | ||||||||||||||||||
Low Tide / height (m) | 5:13PM 0.18 | 5:17AM 0.34 | 5:49PM 0.21 | 5:54AM 0.44 | 6:28PM 0.30 | 6:32AM 0.58 | ||||||||||||||||||
Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 8:15 | - | - | - | - | - | - | - | 8:14 | - | - | - | - | - | - | - | 8:12 | - |
| Sunset | 4:39 | - | - | - | - | - | - | - | 4:42 | - | - | - | - | - | - | - | 4:44 | - | - | - | - | - | - | - |
 |  | | |  | | |  |  | | | | | | | |  | | | |  |  |  | | |
Rain (mm) | - | 1 | 2 | 1 | - | - | - | 1 | 1 | - | 2 | - | - | - | - | 1 | - | - | - | 1 | 2 | - | - | - |
| Temp. °C | 11 | 11 | 10 | 10 | 9 | 9 | 9 | 10 | 9 | 9 | 7 | 7 | 7 | 7 | 6 | 7 | 7 | 7 | 6 | 6 | 7 | 7 | 7 | 8 |
| Feels °C (?) | 4 | 4 | 3 | 5 | 5 | 6 | 6 | 5 | 4 | 4 | 1 | 2 | 1 | -2 | -5 | -2 | -4 | -6 | -7 | -6 | -4 | -4 | -3 | -2 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
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