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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 Monday 30 Mar 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
9.0° 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 7PM is: 0.6m 7s primary swell from a West-southwest direction and 0.1m 16s secondary swell from a West direction, 0.6m 4s secondary swell from a Northwest direction (forecast issued at 12:00pm March 30). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Mar) | 5ft (1.5m) | 6s |
| Afternoon (30 Mar) | 3.5ft (1.0m) | 5s |
| Evening (30 Mar) | 1.5ft (0.5m) | 7s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 30 | Tuesday 31 | Wednesday 01 | Thursday 02 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 6 | 5 | 5 | 7 | 7 | 6 | 6 | 6 | 4 | 4 | 4 | 5 | 5 | 4 | 5 | 5 | 5 | 3 | 3 | 4 | 5 | 6 | 6 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 118 | 57 | 52 | 30 | 21 | 14 | 15 | 6 | 6 | 4 | 5 | 7 | 6 | 5 | 6 | 9 | 7 | 1 | 0 | 0 | 0 | 59 | 36 | 19 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- off | cross- off | cross- off | cross | cross | cross- on | glass | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | on | on | on |
High Tide / height (m) | 7:41AM 3.44 | 8:13PM 3.22 | 8:23AM 3.67 | 8:48PM 3.43 | 9:00AM 3.84 | 9:22PM 3.59 | ||||||||||||||||||
Low Tide / height (m) | 2:50PM 0.18 | 3:03AM 0.38 | 3:30PM 0.01 | 3:42AM 0.22 | 4:07PM -0.05 | 4:17AM 0.14 | ||||||||||||||||||
Monday 30 | Tuesday 31 | Wednesday 01 | Thursday 02 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:50 |
| Sunset | - | - | - | 7:46 | - | - | - | - | - | - | - | 7:49 | - | - | - | - | - | - | - | 7:51 | - | - | - | - |
 |  | | |  | | | | | |  | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 12 | 13 | 13 | 12 | 11 | 11 | 11 | 10 | 10 | 11 | 10 | 10 | 10 | 6 | 5 | 5 |
| Feels °C (?) | 1 | 2 | 3 | 4 | 6 | 7 | 7 | 9 | 11 | 11 | 11 | 10 | 8 | 9 | 8 | 7 | 6 | 7 | 5 | 6 | 7 | 0 | 0 | 1 |
- 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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