- 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 pm Thursday 21 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
12.2° 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: 1.1m 7s primary swell from a Southwest direction and 0.1m 15s secondary swell from a West direction (forecast issued at 12:00pm May 21). The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 5ft (1.5m) | 6s |
| Afternoon (21 May) | 4ft (1.2m) | 7s |
| Evening (21 May) | 2.5ft (0.8m) | 7s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 16°C on Thu night, min 13°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 6 | SW 6 | SW 7 | SW 7 | SW 7 | SW 7 | SW 8 | SW 9 | SW 10 | SW 6 | SW 7 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | WSW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SW 8 | |
167 | 136 | 114 | 91 | 73 | 65 | 28 | 21 | 24 | 61 | 62 | 157 | 150 | 145 | 48 | 48 | 77 | 63 | 45 | 21 | 20 | 12 | 12 | 11 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | cross-off | off | off | off | off | off | off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | off | off | off | off | off | |
High Tide | 12:43PM3.24m | 1:05AM3.54m | 1:45PM2.93m | 2:09AM3.32m | 3:01PM2.72m | 3:25AM3.15m | ||||||||||||||||||
Low Tide | 7:37AM0.24m | 7:54PM0.68m | 8:37AM0.41m | 8:53PM0.87m | 9:41AM0.57m | 9:57PM0.99m | ||||||||||||||||||
 |  | | |  | | | | | | | | |  |  |  | | | | | | | | | |
 | 5:11 | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:07 | — |
 | — | — | — | 9:17 | — | — | — | — | — | — | — | 9:19 | — | — | — | — | — | — | — | 9:20 | — | — | — | 9:22 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 14 | 15 | 15 | 16 | 16 | 15 | 14 | 14 | 16 | 16 | 15 | 14 | 13 | 13 | 13 | 14 | 15 | 16 | 15 | 14 | 14 | 14 | 14 |
10 | 10 | 11 | 13 | 15 | 12 | 12 | 11 | 11 | 14 | 14 | 13 | 12 | 11 | 12 | 11 | 12 | 13 | 14 | 13 | 12 | 12 | 12 | 13 | |
Swell 1 Height (m) Direction Period (s) | — | — | W 15 | SW 7 | SW 7 | W 15 | SW 8 | SW 9 | SW 10 | SW 10 | SW 11 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | WSW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SW 8 |
 kJ | — | — | 4 | 91 | 73 | 4 | 28 | 21 | 24 | 28 | 29 | 157 | 150 | 145 | 48 | 48 | 77 | 63 | 45 | 21 | 20 | 12 | 12 | 11 |
Swell 2 Height (m) Direction Period (s) | — | — | — | W 15 | W 15 | W 15 | W 14 | — | WSW 8 | — | — | — | SW 4 | SW 4 | SW 4 | SW 4 | — | — | — | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 |
| kJ | — | — | — | 4 | 4 | 4 | 4 | — | 6 | — | — | — | 4 | 4 | 4 | 3 | — | — | — | 7 | 7 | 7 | 8 | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 13 | SW 14 | SW 14 | SW 14 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 7 | 8 | 8 |
Wind waves Height (m) Direction Period (s) | SW 6 | SW 6 | SW 7 | — | — | SW 7 | SSW 4 | SSW 5 | SSW 6 | SW 6 | SW 7 | — | — | — | SW 4 | SW 4 | — | SW 10 | — | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 |
| kJ | 167 | 136 | 114 | — | — | 65 | 22 | 34 | 61 | 61 | 62 | — | — | — | 12 | 6 | — | 59 | — | 3 | 6 | 6 | 5 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 201 | 154 | 157 | 48 | 130 | 93 | 154 | 26 | 154 | 20 | 20 | 20 | 80 | 20 | 20 | 93 | 149 | 20 | 20 | 149 | 130 | 130 | 130 | 136 |
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