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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 Friday 22 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
12.5° C
(Which is 1.5°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: 0.3m 10s primary swell from a West-southwest direction and 0.4m 8s secondary swell from a Southwest direction (forecast issued at 06:00am May 22). An open ocean swell of 0.9m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 May) | 1.5ft (0.4m) | 9s |
| Afternoon (22 May) | 2.5ft (0.8m) | 7s |
| Evening (22 May) | 1.5ft (0.4m) | 10s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 20°C on Sun night, min 12°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 22 | Saturday 23 | Sunday 24 | Mon 25 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SW 8 | SW 9 | SW 9 | SW 10 | SW 7 | SW 11 | WSW 10 | SW 10 | SW 10 | WSW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | |
28 | 21 | 21 | 28 | 64 | 159 | 42 | 50 | 48 | 38 | 47 | 33 | 23 | 21 | 20 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | glassy | glassy | off | |
High Tide | 1:45PM2.93m | 2:09AM3.32m | 3:01PM2.72m | 3:25AM3.15m | 4:26PM2.66m | |||||||||||||||||||
Low Tide | 8:37AM0.41m | 8:53PM0.87m | 9:41AM0.57m | 9:57PM0.99m | 10:49AM0.66m | 11:06PM1.04m | ||||||||||||||||||
 |  |  | | | |  | |  |  | | | | | | | | | | | | | | | |
 | 5:09 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | 5:05 |
 | — | — | — | — | — | 9:19 | — | — | — | — | — | — | — | 9:20 | — | — | — | — | — | — | — | 9:22 | — | 9:22 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 15 | 14 | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 14 | 15 | 15 | 14 | 13 | 12 | 13 | 13 | 14 | 17 | 18 | 19 | 19 | 20 |
13 | 13 | 11 | 13 | 13 | 13 | 12 | 13 | 11 | 12 | 12 | 13 | 12 | 12 | 11 | 10 | 11 | 11 | 12 | 15 | 16 | 18 | 17 | 18 | |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 9 | SW 9 | SW 8 | SW 11 | — | WSW 10 | SW 10 | SW 10 | WSW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 4 | SW 9 | SW 4 | SW 4 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 |
 kJ | 28 | 21 | 19 | 14 | 29 | — | 42 | 50 | 48 | 38 | 47 | 33 | 23 | 21 | 12 | 12 | 6 | 5 | 11 | 11 | 10 | 10 | 10 | 10 |
Swell 2 Height (m) Direction Period (s) | W 14 | — | WSW 10 | SW 10 | — | — | — | — | — | SW 4 | — | — | — | SW 13 | SW 9 | W 14 | SW 9 | SW 8 | SW 4 | WSW 3 | W 14 | W 13 | W 13 | SW 13 |
| kJ | 4 | — | 21 | 28 | — | — | — | — | — | 4 | — | — | — | 7 | 20 | 4 | 12 | 11 | 2 | 1 | 4 | 3 | 3 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 13 | SW 14 | SW 14 | SW 14 | W 14 | W 14 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 7 | 8 | 8 | 4 | 4 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 4 | SSW 5 | SSW 6 | SW 6 | SW 7 | SW 11 | SW 5 | SW 5 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | — | SW 4 | — | — | — | — | — | — | — | — |
| kJ | 18 | 42 | 59 | 31 | 64 | 159 | 28 | 17 | 15 | 11 | 8 | 6 | 6 | 7 | — | 12 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 48 | 26 | 154 | 154 | 223 | 162 | 93 | 20 | 20 | 93 | 130 | 149 | 20 | 149 | 130 | 130 | 130 | 130 | 24 | 136 | 136 | 136 | 136 | 136 |
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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