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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 23 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 1.4°C warmer than normal for this time of year)How big are the waves at Trefor today?
The current surf forecast for Trefor at 7PM is: 0.4m 9s primary swell from a Southwest direction and 0.1m 13s secondary swell from a Southwest direction (forecast issued at 12:00pm May 23). An open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 May) | 1.5ft (0.5m) | 10s |
| Afternoon (23 May) | 1.5ft (0.4m) | 10s |
| Evening (23 May) | 1ft (0.3m) | 9s |
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 24°C on Mon afternoon, min 11°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 23 | Sunday 24 | Monday 25 | Tue 26 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SW 10 | SW 10 | SW 10 | SW 9 | WSW 9 | WSW 9 | SW 9 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | WSW 8 | WSW 7 | W 13 | W 13 | W 13 | W 12 | W 12 | W 12 | |
98 | 24 | 23 | 21 | 8 | 7 | 12 | 11 | 11 | 11 | 10 | 16 | 10 | 10 | 10 | 9 | 6 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | off | off | off | off | off | off | cross-off | cross-off | off | off | glassy | glassy | cross-off | glassy | glassy | glassy | glassy | cross | glassy | cross-off | glassy | |
High Tide | 3:01PM2.72m | 3:25AM3.15m | 4:26PM2.66m | 4:42AM3.10m | 5:36PM2.75m | 5:47AM3.11m | ||||||||||||||||||
Low Tide | 9:41AM0.57m | 9:57PM0.99m | 10:49AM0.66m | 11:06PM1.04m | 11:56AM0.67m | 00:15AM1.00m | ||||||||||||||||||
 | | | |  |  | | |  | | | | | | | | | | | | | | | | |
 | 5:07 | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:05 | — |
 | — | — | — | 9:20 | — | — | — | — | — | — | — | 9:22 | — | — | — | — | — | — | — | 9:22 | — | — | — | 9:24 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 12 | 13 | 14 | 13 | 12 | 12 | 11 | 11 | 13 | 15 | 17 | 18 | 19 | 19 | 19 | 19 | 21 | 23 | 24 | 23 | 23 | 22 | 21 | 21 |
10 | 10 | 10 | 10 | 9 | 9 | 8 | 8 | 10 | 12 | 14 | 15 | 16 | 17 | 17 | 18 | 21 | 24 | 25 | 25 | 25 | 24 | 22 | 23 | |
Swell 1 Height (m) Direction Period (s) | SW 10 | SW 10 | SW 10 | SW 9 | WSW 9 | WSW 9 | SW 4 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | WSW 8 | WSW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 |
 kJ | 98 | 24 | 23 | 21 | 8 | 7 | 12 | 11 | 11 | 11 | 10 | 16 | 10 | 10 | 10 | 9 | 6 | 5 | 2 | 2 | 2 | 2 | 2 | 2 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 13 | SW 13 | SW 13 | SW 9 | SW 14 | W 14 | W 14 | SW 3 | W 13 | W 13 | W 13 | W 13 | W 13 | W 13 | W 13 | W 13 | W 13 | W 13 | W 12 | W 12 | W 12 |
| kJ | — | — | — | 7 | 7 | 7 | 12 | 8 | 4 | 4 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 14 | SW 14 | SW 14 | SW 14 | SW 14 | W 14 | W 14 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 4 | 7 | 8 | 8 | 8 | 4 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SW 4 | SW 4 | SW 4 | SW 5 | SW 5 | — | SW 4 | SW 4 | SW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 6 | 6 | 14 | 22 | 22 | — | 8 | 7 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 149 | 20 | 149 | 149 | 20 | 136 | 130 | 130 | 137 | 136 | 136 | 136 | 136 | 136 | 136 | 136 | 159 | 203 | 203 | 136 | 147 | 147 | 155 | 136 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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