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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 am 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 11AM is: 2.0m 6s primary swell from a West-northwest direction and 0.1m 17s secondary swell from a West direction (forecast issued at 06:00am May 13). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | 6.5ft (2.0m) | 6s |
| Afternoon (13 May) | 4.5ft (1.3m) | 6s |
| Evening (13 May) | 4.5ft (1.3m) | 5s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 8mm), mostly falling on Wed morning. Very mild (max 11°C on Wed afternoon, min 8°C on Wed morning). Winds decreasing (strong winds from the NW on Wed morning, calm by Fri night). | ||||||||||||||||||||||||
Wednesday 13 | Thursday 14 | Friday 15 | Sat 16 | |||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
W 6 | WNW 6 | WNW 6 | NW 6 | NW 6 | NW 5 | NW 6 | NW 7 | NW 7 | NW 7 | NW 6 | NW 6 | NW 5 | NW 4 | NW 6 | SW 14 | NW 6 | NW 6 | NW 6 | NW 6 | NW 5 | NNW 5 | NNW 5 | W 13 | |
183 | 281 | 321 | 209 | 103 | 79 | 120 | 267 | 284 | 200 | 172 | 119 | 51 | 36 | 54 | 8 | 56 | 51 | 49 | 46 | 36 | 22 | 22 | 3 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | cross-on | on | on | on | on | on | on | on | on | glassy | |
High Tide | 6:22AM3.19m | 6:58PM3.11m | 7:09AM3.47m | 7:40PM3.42m | 7:54AM3.73m | 8:21PM3.69m | ||||||||||||||||||
Low Tide | 1:26PM0.54m | 1:44AM0.74m | 2:14PM0.30m | 2:34AM0.48m | 3:01PM0.13m | |||||||||||||||||||
 |  | |  |  | |  |  |  | | | | | | | | | | | | | | |  | |
 | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | 5:18 |
 | — | — | — | — | — | 9:05 | — | — | — | — | — | — | — | 9:07 | — | — | — | — | — | — | — | 9:07 | — | 9:09 |
1 | 1 | 1 | 1 | — | 1 | — | 1 | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 9 | 8 | 8 | 10 | 11 | 10 | 9 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 10 | 8 | 8 |
0 | -2 | -2 | 1 | 4 | 3 | 1 | -1 | -1 | 0 | 1 | 1 | 3 | 4 | 4 | 3 | 2 | 3 | 2 | 2 | 2 | 5 | 4 | 6 | |
Swell 1 Height (m) Direction Period (s) | — | — | W 17 | SW 7 | WSW 7 | SW 7 | SW 6 | WSW 6 | W 16 | W 16 | SW 15 | SW 15 | SW 14 | W 6 | SW 14 | NW 6 | W 14 | W 14 | W 14 | W 14 | W 14 | W 13 | NNW 5 | NW 5 |
 kJ | — | — | 5 | 49 | 43 | 12 | 7 | 4 | 5 | 5 | 9 | 8 | 8 | 1 | 8 | 39 | 4 | 4 | 4 | 4 | 4 | 4 | 11 | 7 |
Swell 2 Height (m) Direction Period (s) | — | — | — | W 16 | W 16 | W 16 | W 16 | W 16 | — | — | — | — | — | SW 14 | SW 14 | SW 14 | SW 14 | W 6 | W 6 | W 6 | W 6 | W 6 | W 13 | W 13 |
| kJ | — | — | — | 5 | 5 | 5 | 5 | 5 | — | — | — | — | — | 8 | 8 | 8 | 8 | 1 | 1 | 1 | 1 | 1 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 14 | W 14 | W 14 | — | — | — | — | W 6 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | 4 | — | — | — | — | 1 |
Wind waves Height (m) Direction Period (s) | W 6 | WNW 6 | WNW 6 | NW 6 | NW 6 | NW 5 | NW 6 | NW 7 | NW 7 | NW 7 | NW 6 | NW 6 | NW 5 | NW 4 | NW 6 | NNW 6 | NW 6 | NW 6 | NW 6 | NW 6 | NW 5 | NNW 5 | NNW 5 | — |
| kJ | 183 | 281 | 321 | 209 | 103 | 79 | 120 | 267 | 284 | 200 | 172 | 119 | 51 | 36 | 54 | 65 | 56 | 51 | 49 | 46 | 36 | 22 | 22 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 287 | 301 | 615 | 628 | 898 | 1048 | 593 | 593 | 313 | 313 | 1045 | 1297 | 298 | 298 | 50 | 161 | 323 | 18 | 323 | 323 | 298 | 283 | 57 | 283 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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