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Trefor Surf Forecast
/ Wales – Lleyn (14 surf breaks) /
Surf Forecasts:
Trefor surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 5 pm Friday 20 Mar 2026 GMTForecast 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
8.8° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Trefor today?
The current surf forecast for Trefor at 9PM is: 0.1m 8s primary swell from a Southwest direction (forecast issued at 05:00pm March 20). The wind direction is predicted to be glassy.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Mar) | - | - |
| Afternoon (20 Mar) | 0.5ft (0.1m) | 8s |
| Evening (20 Mar) | 0.5ft (0.1m) | 8s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | |||||||||||||||||||||
| 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 15 | 8 | 11 | 11 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3 | 4 | 2 | 2 | 2 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 7 | 6 | 6 | 5 | 12 | 4 | 10 | 15 | 14 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | glass | glass | glass | glass | glass | glass | cross- on | cross- on | glass | off | off | off | off | glass | glass | on | on | cross- on | cross- on | cross- on | cross | cross- off | cross- off |
High Tide / height (m) | 9:32PM 3.90 | 9:49AM 4.20 | 10:09PM 3.91 | 10:29AM 4.09 | 10:49PM 3.81 | 11:11AM 3.83 | ||||||||||||||||||
Low Tide / height (m) | 4:18PM -0.20 | 4:30AM -0.01 | 4:56PM -0.09 | 5:10AM 0.08 | 5:36PM 0.14 | 5:53AM 0.26 | ||||||||||||||||||
Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 6:18 | - | - | - | - | - | - | - | 6:16 | - | - | - | - | - | - | - | 6:13 | - |
| Sunset | - | 6:30 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:32 | - | - | - | - | - | - |
 | |  |  | | |  | | | | | | | | |  | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 11 | 10 | 10 | 10 | 9 | 9 | 10 | 11 | 11 | 10 | 9 | 9 | 8 | 8 | 9 | 10 | 10 | 9 | 8 | 6 | 6 | 5 | 6 | 7 |
| Feels °C (?) | 9 | 8 | 8 | 8 | 7 | 7 | 8 | 8 | 9 | 9 | 7 | 6 | 4 | 5 | 7 | 8 | 7 | 7 | 3 | 1 | 2 | 1 | 3 | 3 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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