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Porth Dinllaen Surf Forecast
/ Wales – Lleyn (14 surf breaks) /
Surf Forecasts:
Porth Dinllaen surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 11 pm Tuesday 24 Mar 2026 GMTForecast update in hr min s Forecast update imminent
Porth Dinllaen surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porth Dinllaen sea temperature is
9.3° C
(Which is 1.4°C warmer than normal for this time of year)How big are the waves at Porth Dinllaen today?
The current surf forecast for Porth Dinllaen at 4AM is: 1.4m 8s primary swell from a West-southwest direction and 1.6m 6s secondary swell from a West-northwest direction (forecast issued at 11:00pm March 24). The wind direction is predicted to be onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Mar) | 8ft (2.5m) | 7s |
| Afternoon (25 Mar) | 7ft (2.2m) | 7s |
| Evening (25 Mar) | 6ft (1.8m) | 7s |
Table - waves today at Porth Dinllaen. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 25 | Thursday 26 | Friday 27 | ||||||||||||||||||||||
| 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 | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 7 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 4 | 4 | 3 | 4 | 5 | 5 | 5 | 6 | 6 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 995 | 707 | 236 | 700 | 726 | 610 | 494 | 363 | 279 | 223 | 164 | 69 | 39 | 23 | 13 | 6 | 28 | 60 | 55 | 57 | 64 | 66 | 40 | 26 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | on | on | on | on | on | on | on | on | on | on | cross- on | cross | cross- off | cross | cross | cross | cross | on | on | on | on |
High Tide / height (m) | 12:20AM 3.32 | 12:55PM 3.08 | 1:23AM 3.02 | 2:13PM 2.73 | 2:52AM 2.83 | 4:02PM 2.61 | ||||||||||||||||||
Low Tide / height (m) | 7:10PM 0.81 | 7:42AM 0.81 | 8:16PM 1.12 | 9:03AM 1.01 | 9:43PM 1.28 | 10:38AM 1.00 | ||||||||||||||||||
Wednesday 25 | Thursday 26 | Friday 27 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:05 | - | - | - |
| Sunset | - | - | - | - | - | - | - | 6:38 | - | - | - | - | - | - | - | 6:40 | - | - | - | - | - | - | - | 6:43 |
 |  |  | |  |  | |  |  |  | | | | |  | | |  | | | | |  | | |
Rain (mm) | 1 | 1 | 2 | 2 | - | 1 | 1 | 1 | - | - | - | - | - | - | - | 1 | 2 | - | - | 2 | 2 | - | - | - |
| Temp. °C | 7 | 7 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 6 | 6 | 6 | 6 | 7 | 7 | 6 | 8 | 9 | 9 | 9 | 8 | 8 | 9 | 8 |
| Feels °C (?) | -5 | -4 | -6 | -9 | -8 | -7 | -6 | -4 | -4 | -4 | -4 | -2 | -1 | 2 | 1 | -1 | 3 | 4 | 4 | 4 | 1 | 3 | 4 | 3 |
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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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