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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 Tuesday 12 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
12.2° C
(Which is 1.9°C warmer than normal for this time of year)How big are the waves at Trefor today?
The current surf forecast for Trefor at 9PM is: 0.6m 4s primary swell from a West-northwest direction and 0.1m 8s secondary swell from a Southwest direction (forecast issued at 06:00pm May 12). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | - | - |
| Afternoon (12 May) | 2ft (0.6m) | 4s |
| Evening (12 May) | 2ft (0.6m) | 4s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 12mm), heaviest on Tue night. Very mild (max 12°C on Tue afternoon, min 8°C on Tue night). Winds decreasing (strong winds from the WNW on Tue night, light winds from the N by Thu night). | ||||||||||||||||||||||||
Tue 12 | Wednesday 13 | Thursday 14 | Fri 15 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
WNW 4 | WNW 4 | WNW 4 | W 5 | WNW 6 | WNW 6 | WNW 7 | NW 7 | NW 6 | NW 5 | NW 6 | NW 6 | NW 7 | NW 7 | NW 6 | NW 6 | NW 5 | NNW 6 | NW 6 | SW 14 | NW 6 | NW 6 | NW 6 | NW 6 | |
15 | 16 | 13 | 81 | 194 | 300 | 346 | 248 | 111 | 96 | 115 | 220 | 275 | 159 | 132 | 111 | 66 | 63 | 35 | 8 | 80 | 54 | 49 | 38 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | cross-on | cross-on | on | on | on | on | on | |
High Tide | 6:13PM2.80m | 6:22AM3.19m | 6:58PM3.11m | 7:09AM3.47m | 7:40PM3.42m | 7:54AM3.73m | ||||||||||||||||||
Low Tide | 00:51AM0.99m | 1:26PM0.54m | 1:44AM0.74m | 2:14PM0.30m | 2:34AM0.48m | |||||||||||||||||||
 | |  |  |  |  | |  | |  |  | | | | | | | | |  | | | | | |
 | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — |
 | — | 9:02 | — | — | — | — | — | — | — | 9:05 | — | — | — | — | — | — | — | 9:07 | — | — | — | — | — | 9:07 |
— | — | — | — | 1 | 2 | 1 | 1 | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | |
Temp °C | 12 | 12 | 11 | 9 | 9 | 8 | 8 | 10 | 10 | 10 | 8 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 8 | 9 | 8 | 8 | 9 | 10 |
7 | 7 | 4 | 1 | -1 | -2 | -2 | 1 | 2 | 4 | 0 | -1 | -1 | 0 | 1 | 2 | 4 | 4 | 4 | 5 | 2 | 1 | 2 | 3 | |
Swell 1 Height (m) Direction Period (s) | NW 5 | SW 8 | SW 8 | SW 8 | — | — | W 17 | WSW 7 | WSW 7 | SW 7 | SW 7 | SW 7 | W 16 | W 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 5 | SW 14 | W 14 | W 14 | W 14 | W 14 |
 kJ | 6 | 3 | 3 | 3 | — | — | 5 | 42 | 43 | 12 | 7 | 2 | 5 | 5 | 9 | 8 | 8 | 8 | 1 | 8 | 4 | 4 | 4 | 4 |
Swell 2 Height (m) Direction Period (s) | SW 8 | — | — | — | — | — | — | W 16 | W 16 | W 16 | W 16 | W 16 | — | — | — | — | SW 14 | SW 14 | SW 14 | SW 14 | W 7 | W 6 | — | — |
| kJ | 3 | — | — | — | — | — | — | 5 | 5 | 5 | 5 | 5 | — | — | — | — | 8 | 8 | 8 | 8 | 1 | 1 | — | — |
Swell 3 Height (m) Direction Period (s) | — | W 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 4 | WNW 4 | WNW 4 | W 5 | WNW 6 | WNW 6 | WNW 7 | NW 7 | NW 6 | NW 5 | NW 6 | NW 6 | NW 7 | NW 7 | NW 6 | NW 6 | NW 5 | NNW 6 | NW 6 | NW 6 | NW 6 | NW 6 | NW 6 | NW 6 |
| kJ | 15 | 16 | 13 | 81 | 194 | 300 | 346 | 248 | 111 | 96 | 115 | 220 | 275 | 159 | 132 | 111 | 66 | 63 | 35 | 88 | 80 | 54 | 49 | 38 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 298 | 314 | 406 | 296 | 296 | 287 | 298 | 301 | 615 | 898 | 893 | 893 | 593 | 593 | 313 | 313 | 328 | 328 | 323 | 298 | 50 | 155 | 62 | 323 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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