- Forecast
- Maps
- Live
- Weather State
- Spot Information
Trefor Surf Forecast
/ Wales – Lleyn (14 surf breaks) /
Surf Forecasts:
Trefor surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 12 am Tuesday 19 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 1.2°C warmer than normal for this time of year)How big are the waves at Trefor today?
The current surf forecast for Trefor at 5AM is: 1.6m 7s primary swell from a South-southwest direction and 0.8m 7s secondary swell from a Southwest direction (forecast issued at 12:00am May 19). The wind direction is predicted to be offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 5ft (1.5m) | 7s |
| Afternoon (19 May) | 6ft (1.8m) | 7s |
| Evening (19 May) | 7ft (2.1m) | 7s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 15mm), heaviest on Mon night. Very mild (max 15°C on Thu morning, min 10°C on Mon night). Winds decreasing (strong winds from the SSE on Mon night, light winds from the S by Thu afternoon). | ||||||||||||||||||||||||
Tuesday 19 | Wednesday 20 | Thursday 21 | ||||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SW 6 | SSW 7 | SSW 7 | SSW 7 | SW 6 | SW 7 | SW 7 | SW 8 | SW 8 | SW 9 | SW 9 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | WSW 9 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 7 | |
42 | 214 | 218 | 211 | 209 | 287 | 351 | 565 | 589 | 460 | 408 | 0 | 0 | 212 | 177 | 182 | 132 | 33 | 0 | 135 | 106 | 82 | 74 | 65 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | |
High Tide | 10:31PM4.02m | 10:59AM3.82m | 11:18PM3.94m | 11:49AM3.56m | 00:09AM3.76m | 12:43PM3.24m | ||||||||||||||||||
Low Tide | 5:48AM-0.01m | 6:10PM0.28m | 6:41AM0.08m | 7:00PM0.48m | 7:37AM0.24m | 7:54PM0.68m | ||||||||||||||||||
 | |  | |  | |  | |  |  | |  |  | | |  | | | | | | | | | |
 | — | 5:13 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:14 | — | — | — | — | — | — | — | 9:15 | — | — | — | — | — | — | — | 9:17 | — |
3 | 3 | 1 | 1 | 2 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | |
Temp °C | 11 | 12 | 12 | 12 | 12 | 13 | 12 | 11 | 11 | 11 | 11 | 12 | 13 | 13 | 12 | 12 | 12 | 12 | 13 | 14 | 15 | 15 | 15 | 16 |
3 | 5 | 7 | 6 | 6 | 7 | 6 | 3 | 5 | 7 | 7 | 7 | 7 | 7 | 7 | 9 | 8 | 8 | 9 | 11 | 12 | 11 | 12 | 15 | |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 10 | WSW 8 | WSW 9 | — | — | W 15 | W 15 | W 15 | SW 7 |
 kJ | 42 | 61 | — | — | — | — | — | — | — | — | — | — | — | — | — | 20 | 48 | 33 | — | — | 4 | 4 | 4 | 65 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 10 | — | — | — | — | — | — | W 15 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 20 | — | — | — | — | — | — | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SW 6 | SW 7 | SW 7 | SW 8 | SW 8 | SW 9 | SW 9 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | — |
| kJ | 126 | 214 | 218 | 211 | 209 | 287 | 351 | 565 | 589 | 460 | 408 | 190 | 167 | 212 | 177 | 182 | 132 | 101 | 147 | 135 | 106 | 82 | 74 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 303 | 303 | 283 | 333 | 318 | 318 | 287 | 288 | 285 | 285 | 280 | 285 | 285 | 268 | 268 | 80 | 80 | 223 | 223 | 173 | 154 | 160 | 80 | 26 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Trefor surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest