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Trefor Surf Forecast
/ Wales – Lleyn (14 surf breaks) /
Surf Forecasts:
Trefor surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 6 pm Wednesday 13 May 2026 BSTForecast 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
12.4° C
(Which is 2.0°C warmer than normal for this time of year)How big are the waves at Trefor today?
The current surf forecast for Trefor at 12AM is: 1.4m 6s primary swell from a Northwest direction and 0.3m 6s secondary swell from a Southwest direction, 0.1m 16s secondary swell from a West direction (forecast issued at 06:00pm May 13). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 May) | 5ft (1.5m) | 6s |
| Afternoon (14 May) | 4.5ft (1.4m) | 6s |
| Evening (14 May) | 0.5ft (0.1m) | 14s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 5mm), mostly falling on Wed afternoon. Very mild (max 11°C on Wed afternoon, min 8°C on Wed night). Winds decreasing (strong winds from the NNW on Wed night, calm by Fri night). | ||||||||||||||||||||||||
Wed 13 | Thursday 14 | Friday 15 | Sat 16 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
NW 6 | NW 5 | NW 5 | NW 6 | NW 7 | NW 6 | NW 6 | NW 6 | NW 6 | SW 14 | SW 14 | NW 7 | NW 7 | NW 6 | NNW 6 | NW 6 | NW 4 | NNW 4 | NNW 5 | NW 5 | W 13 | W 13 | W 13 | W 13 | |
76 | 45 | 51 | 196 | 226 | 183 | 196 | 170 | 153 | 8 | 8 | 139 | 85 | 56 | 61 | 47 | 15 | 9 | 15 | 4 | 3 | 3 | 3 | 3 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | on | on | on | on | on | on | cross-on | cross-on | on | on | on | on | on | on | on | cross-on | glassy | cross-off | glassy | cross | cross-off | |
High Tide | 6:58PM3.11m | 7:09AM3.47m | 7:40PM3.42m | 7:54AM3.73m | 8:21PM3.69m | 8:39AM3.92m | ||||||||||||||||||
Low Tide | 1:26PM0.54m | 1:44AM0.74m | 2:14PM0.30m | 2:34AM0.48m | 3:01PM0.13m | 3:22AM0.25m | ||||||||||||||||||
 |  |  |  | |  | | | | | | | |  | | | | | | |  |  | | | |
 | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:18 | — | — | — |
 | — | 9:05 | — | — | — | — | — | — | — | 9:07 | — | — | — | — | — | — | — | 9:07 | — | — | — | — | — | 9:09 |
— | 1 | — | — | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 10 | 9 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 9 | 8 | 8 | 8 | 9 | 9 | 10 | 9 | 8 | 8 | 8 | 8 | 10 | 10 |
4 | 4 | 1 | -1 | -1 | 0 | 1 | 1 | 3 | 4 | 5 | 2 | 2 | 2 | 2 | 2 | 3 | 4 | 5 | 6 | 5 | 6 | 6 | 6 | |
Swell 1 Height (m) Direction Period (s) | WSW 7 | WSW 7 | SW 6 | WSW 6 | SW 6 | W 16 | SW 7 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | W 14 | W 14 | W 14 | W 14 | W 14 | W 13 | NW 5 | NW 5 | NNW 5 | NNW 5 | — | — |
 kJ | 42 | 30 | 10 | 4 | 2 | 5 | 2 | 8 | 8 | 8 | 8 | 8 | 4 | 4 | 4 | 4 | 4 | 4 | 6 | 4 | 2 | 2 | — | — |
Swell 2 Height (m) Direction Period (s) | W 16 | W 16 | W 16 | W 16 | W 16 | — | SW 15 | W 15 | — | W 7 | W 14 | W 5 | — | W 14 | — | — | — | W 6 | W 13 | W 13 | W 13 | — | W 13 | W 13 |
| kJ | 5 | 5 | 5 | 5 | 5 | — | 9 | 4 | — | 1 | 4 | 1 | — | 4 | — | — | — | 1 | 3 | 3 | 3 | — | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 6 | — | W 13 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 3 | — | — |
Wind waves Height (m) Direction Period (s) | NW 6 | NW 5 | NW 5 | NW 6 | NW 7 | NW 6 | NW 6 | NW 6 | NW 6 | NNW 6 | NNW 7 | NW 7 | NW 7 | NW 6 | NNW 6 | NW 6 | NW 4 | NNW 4 | NNW 5 | — | — | WSW 3 | WSW 3 | SW 3 |
| kJ | 76 | 45 | 51 | 196 | 226 | 183 | 196 | 170 | 153 | 113 | 110 | 139 | 85 | 56 | 61 | 47 | 15 | 9 | 15 | — | — | 2 | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1549 | 613 | 593 | 593 | 898 | 316 | 347 | 329 | 1208 | 298 | 57 | 50 | 39 | 269 | 323 | 298 | 298 | 283 | 283 | 283 | 283 | 283 | 283 | 283 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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