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Trefor Surf Forecast
/ Wales – Lleyn (14 surf breaks) /
Surf Forecasts:
Trefor surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 11 am Sunday 22 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
9.1° 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 4PM is: 0.1m 12s primary swell from a Southwest direction and 0.1m 9s secondary swell from a Southwest direction, 0.2m 4s secondary swell from a West-northwest direction (forecast issued at 11:00am March 22). The wind direction is predicted to be onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Mar) | 0.5ft (0.1m) | 9s |
| Afternoon (22 Mar) | 0.5ft (0.1m) | 12s |
| Evening (22 Mar) | 1.5ft (0.4m) | 3s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | |||||||||||||||||||||
| 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 | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 8 | 12 | 12 | 3 | 11 | 10 | 10 | 10 | 9 | 9 | 3 | 4 | 5 | 6 | 6 | 7 | 7 | 7 | 7 | 6 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3 | 3 | 6 | 6 | 5 | 12 | 4 | 10 | 15 | 14 | 3 | 0 | 0 | 0 | 0 | 217 | 410 | 507 | 405 | 369 | 274 | 480 | 605 | 639 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | on | on | cross- on | cross- on | cross- on | cross- on | cross | glass | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 10:29AM 4.09 | 10:49PM 3.81 | 11:11AM 3.83 | 11:32PM 3.60 | 11:59AM 3.48 | 12:22AM 3.31 | ||||||||||||||||||
Low Tide / height (m) | 5:36PM 0.14 | 5:53AM 0.26 | 6:20PM 0.46 | 6:42AM 0.52 | 7:12PM 0.80 | |||||||||||||||||||
Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | |||||||||||||||||||||
| Sunrise | 6:16 | - | - | - | - | - | - | - | 6:13 | - | - | - | - | - | - | - | 6:11 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 6:32 | - | - | - | - | - | - | - | 6:35 | - | - | - | - | - | - | - | 6:37 | - | - | - | - |
 | | | |  | |  | | | | | | | |  | |  |  | | |  |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 6 | 7 | 1 | 1 | 1 | 1 | - |
| Temp. °C | 9 | 9 | 9 | 9 | 8 | 6 | 5 | 5 | 6 | 7 | 7 | 7 | 8 | 9 | 9 | 10 | 10 | 10 | 9 | 9 | 7 | 5 | 4 | 5 |
| Feels °C (?) | 7 | 7 | 6 | 5 | 2 | 1 | 1 | 2 | 3 | 3 | 2 | 2 | 2 | 3 | 3 | 4 | 3 | 2 | 1 | -1 | -3 | -7 | -9 | -7 |
- 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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