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Trefor Surf Forecast
/ Wales – Lleyn (14 surf breaks) /
Surf Forecasts:
Trefor surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 12 pm Saturday 16 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
12.0° C
(Which is 1.3°C warmer than normal for this time of year)How big are the waves at Trefor today?
The current surf forecast for Trefor at 4PM is: 0.1m 13s primary swell from a West direction (forecast issued at 12:00pm May 16). An open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 May) | 0.5ft (0.1m) | 13s |
| Afternoon (16 May) | 0.5ft (0.1m) | 13s |
| Evening (16 May) | 0.5ft (0.1m) | 13s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 20mm), heaviest during Mon night. Very mild (max 12°C on Mon afternoon, min 8°C on Sat night). Winds increasing (calm on Sun night, fresh winds from the SE by Mon night). | ||||||||||||||||||||||||
Sat 16 | Sunday 17 | Monday 18 | Tue 19 | |||||||||||||||||||||
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 | 4 AM | 7 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
W 13 | W 13 | W 13 | W 13 | WSW 4 | W 4 | W 4 | W 5 | WSW 5 | NW 4 | NW 4 | SW 6 | SW 6 | W 12 | WSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SSW 5 | SW 6 | |
3 | 3 | 3 | 3 | 0 | 21 | 32 | 36 | 37 | 9 | 3 | 0 | 0 | 3 | 63 | 45 | 31 | 23 | 12 | 11 | 11 | 5 | 19 | 26 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | glassy | glassy | cross-off | cross-off | cross-off | off | off | off | off | cross-off | |
High Tide | 8:39AM3.92m | 9:03PM3.89m | 9:25AM4.01m | 9:47PM4.01m | 10:11AM3.98m | 10:31PM4.02m | ||||||||||||||||||
Low Tide | 3:47PM0.04m | 4:09AM0.07m | 4:34PM0.05m | 4:58AM-0.02m | 5:21PM0.13m | 5:48AM-0.01m | ||||||||||||||||||
 | | | |  |  |  |  | | | |  | | | |  | | | | | | |  | | |
 | 5:18 | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:13 | — |
 | — | — | — | 9:09 | — | — | — | — | — | — | — | 9:10 | — | — | — | — | — | — | — | 9:13 | — | — | — | 9:14 |
1 | 2 | 2 | 1 | 1 | — | — | — | 1 | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | 5 | 3 | |
Temp °C | 9 | 10 | 10 | 11 | 10 | 9 | 8 | 9 | 9 | 10 | 9 | 10 | 8 | 9 | 9 | 9 | 10 | 11 | 12 | 11 | 11 | 11 | 10 | 12 |
6 | 7 | 5 | 8 | 6 | 3 | 3 | 4 | 4 | 4 | 3 | 5 | 4 | 5 | 7 | 7 | 7 | 7 | 9 | 8 | 7 | 7 | 4 | 8 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | W 13 | — | — | — | — | — | NW 4 | NW 4 | — | — | W 12 | WSW 6 | SW 6 | WNW 4 | SW 6 | SW 6 | SW 6 | SW 6 | WSW 6 | SSW 5 | SW 6 |
 kJ | — | — | — | 3 | — | — | — | — | — | 9 | 3 | — | — | 3 | 63 | 45 | 1 | 23 | 12 | 11 | 11 | 3 | 19 | 26 |
Swell 2 Height (m) Direction Period (s) | W 13 | W 13 | W 13 | — | — | — | — | — | — | — | — | — | — | — | W 12 | WNW 4 | WNW 4 | — | — | — | — | SW 6 | — | — |
| kJ | 3 | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | 1 | — | — | — | — | 5 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 2 | SW 3 | SW 4 | SW 4 | WSW 4 | W 4 | W 4 | W 5 | WSW 5 | WSW 5 | SW 5 | SW 6 | SW 6 | SW 6 | — | — | SW 6 | — | — | — | — | S 3 | SE 3 | SSW 6 |
| kJ | 1 | 5 | 12 | 10 | 15 | 21 | 32 | 36 | 37 | 40 | 56 | 101 | 112 | 80 | — | — | 31 | — | — | — | — | 8 | 3 | 69 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 283 | 280 | 285 | 287 | 283 | 283 | 283 | 160 | 285 | 285 | 280 | 269 | 269 | 20 | 20 | 20 | 20 | 223 | 223 | 173 | 283 | 283 | 303 | 303 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
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Ocean Swells (m)- Wind Speed (km/h)
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