- 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 6 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
12.1° 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 11AM is: 1.7m 7s primary swell from a South-southwest direction (forecast issued at 06:00am May 19). The wind direction is predicted to be cross-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) | 8s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 11mm), heaviest on Tue morning. Very mild (max 16°C on Thu afternoon, min 11°C on Tue night). Winds decreasing (fresh winds from the SSW on Tue night, light winds from the SE by Thu night). | ||||||||||||||||||||||||
Tuesday 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SSW 7 | SSW 7 | SSW 7 | SW 7 | SW 7 | SW 7 | SW 8 | SW 8 | SW 9 | WSW 9 | SW 9 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 5 | SW 6 | SW 6 | W 15 | W 15 | W 15 | SW 7 | SW 7 | |
223 | 218 | 229 | 268 | 336 | 440 | 580 | 634 | 572 | 440 | 349 | 0 | 200 | 220 | 172 | 136 | 0 | 0 | 0 | 4 | 4 | 4 | 63 | 49 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | off | |
High Tide | 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 | — | — | — | — | — | — | 5:09 |
 | — | — | — | — | — | 9:14 | — | — | — | — | — | — | — | 9:15 | — | — | — | — | — | — | — | 9:17 | — | 9:19 |
4 | 2 | 1 | 2 | 1 | — | 1 | 2 | — | — | — | — | — | — | — | — | 2 | 2 | — | — | — | — | — | — | |
Temp °C | 12 | 12 | 12 | 12 | 13 | 12 | 11 | 11 | 11 | 11 | 12 | 12 | 13 | 12 | 12 | 12 | 12 | 13 | 14 | 14 | 16 | 15 | 15 | 16 |
6 | 7 | 7 | 6 | 7 | 6 | 4 | 4 | 5 | 6 | 7 | 6 | 8 | 8 | 9 | 9 | 9 | 9 | 10 | 11 | 12 | 12 | 13 | 14 | |
Swell 1 Height (m) Direction Period (s) | SW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 10 | WSW 8 | — | — | — | W 15 | W 15 | W 15 | SW 7 | SW 7 |
 kJ | 61 | — | — | — | — | — | — | — | — | — | — | — | — | — | 20 | 48 | — | — | — | 4 | 4 | 4 | 63 | 49 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 10 | — | — | — | — | — | W 15 | W 15 | W 15 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 20 | — | — | — | — | — | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 9 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 7 | SSW 7 | SSW 7 | SW 7 | SW 7 | SW 7 | SW 8 | SW 8 | SW 9 | WSW 9 | SW 9 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 5 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | — | — |
| kJ | 223 | 218 | 229 | 268 | 336 | 440 | 580 | 634 | 572 | 440 | 349 | 187 | 200 | 220 | 172 | 136 | 94 | 104 | 108 | 102 | 80 | 60 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 303 | 303 | 342 | 318 | 288 | 287 | 283 | 280 | 285 | 280 | 295 | 311 | 270 | 268 | 64 | 80 | 80 | 223 | 223 | 154 | 160 | 80 | 93 | 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