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Trefor Surf Forecast
/ Wales – Lleyn (14 surf breaks) /
Surf Forecasts:
Trefor surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 6 pm Friday 29 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
13.9° C
(Which is 2.4°C warmer than normal for this time of year)How big are the waves at Trefor today (30 May):
- Afternoon surf: Afternoon surf (30 May, local time) - 0.5ft (0.1m), 15s period with SW swell.
- Evening surf: Evening surf (30 May, local time) - 0.5ft (0.1m), 15s period with SW swell.
The current surf forecast for Trefor at 12AM is: 0.1m 15s primary swell from a Southwest direction and 0.1m 11s secondary swell from a Southwest direction (forecast issued at 06:00pm May 29). An open ocean swell of 0.8m 5s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 May) | - | - |
| Afternoon (30 May) | 0.5ft (0.1m) | 15s |
| Evening (30 May) | 0.5ft (0.1m) | 15s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Sun night. Very mild (max 15°C on Fri afternoon, min 11°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Fri 29 | Saturday 30 | Sunday 31 | Mon 1 | |||||||||||||||||||||
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 | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 16 | WSW 9 | WSW 10 | WSW 8 | SW 14 | WSW 13 | WSW 12 | WSW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | WSW 11 | WSW 11 | WSW 11 | SW 11 | WSW 11 | WSW 11 | |
8 | 9 | 9 | 9 | 10 | 10 | 10 | 9 | 8 | 7 | 17 | 15 | 29 | 37 | 36 | 35 | 35 | 33 | 25 | 25 | 24 | 30 | 12 | 11 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | off | off | off | off | off | off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | off | off | off | cross-off | |
High Tide | 8:26PM3.35m | 8:44AM3.34m | 9:02PM3.45m | 9:21AM3.36m | 9:38PM3.51m | 9:58AM3.34m | ||||||||||||||||||
Low Tide | 3:09PM0.59m | 3:30AM0.60m | 3:45PM0.60m | 4:07AM0.54m | 4:20PM0.62m | 4:43AM0.53m | ||||||||||||||||||
 | |  |  | |  |  | | | |  | | | | | | | | | | |  | | | |
 | — | — | — | — | 5:00 | — | — | — | — | — | — | — | 4:58 | — | — | — | — | — | — | — | 4:58 | — | — | — |
 | — | 9:29 | — | — | — | — | — | — | — | 9:30 | — | — | — | — | — | — | — | 9:30 | — | — | — | — | — | 9:31 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | |
Temp °C | 15 | 14 | 12 | 12 | 11 | 11 | 13 | 14 | 15 | 14 | 13 | 13 | 12 | 12 | 13 | 14 | 15 | 14 | 13 | 13 | 12 | 12 | 13 | 14 |
12 | 11 | 9 | 10 | 9 | 9 | 10 | 11 | 12 | 11 | 10 | 11 | 10 | 10 | 11 | 11 | 12 | 11 | 11 | 11 | 9 | 9 | 11 | 12 | |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 12 | SW 11 | SW 11 | SW 11 | WSW 9 | WSW 10 | WSW 8 | SW 14 | WSW 13 | WSW 12 | WSW 12 | SW 12 | SW 4 | SW 5 | SW 12 | SW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 |
 kJ | 8 | 9 | 5 | 5 | 5 | 4 | 9 | 9 | 7 | 7 | 17 | 15 | 29 | 37 | 16 | 14 | 35 | 33 | 25 | 25 | 24 | 12 | 12 | 11 |
Swell 2 Height (m) Direction Period (s) | W 12 | W 12 | SW 15 | SW 15 | SW 16 | SW 16 | SW 16 | SW 14 | SW 14 | SW 8 | SW 7 | SW 7 | W 7 | — | SW 12 | SW 12 | — | — | SW 8 | — | — | SW 11 | SW 14 | SW 14 |
| kJ | 3 | 3 | 9 | 9 | 10 | 10 | 10 | 8 | 8 | 2 | 2 | 2 | 1 | — | 36 | 35 | — | — | 2 | — | — | 30 | 8 | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | SW 15 | SW 16 | SW 16 | W 9 | — | SW 15 | — | — | W 9 | — | — | — | — | — | — | — | — | — | — | SW 14 | SW 14 | — |
| kJ | — | — | 9 | 9 | 10 | 2 | — | 9 | — | — | 2 | — | — | — | — | — | — | — | — | — | — | 8 | 8 | — |
Wind waves Height (m) Direction Period (s) | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 4 | SSW 4 | SSW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | — | — | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SSW 5 | SSW 5 |
| kJ | 28 | 34 | 35 | 31 | 28 | 16 | 11 | 10 | 7 | 10 | 14 | 14 | 19 | 16 | — | — | 15 | 18 | 21 | 29 | 43 | 39 | 35 | 27 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 276 | 160 | 160 | 147 | 130 | 93 | 154 | 276 | 276 | 223 | 144 | 80 | 80 | 144 | 295 | 20 | 295 | 295 | 80 | 80 | 80 | 171 | 93 | 154 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
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