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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 5 pm Monday 23 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
9.4° C
(Which is 1.6°C warmer than normal for this time of year)| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Mar) | - | - |
| Afternoon (23 Mar) | 1.5ft (0.4m) | 9s |
| Evening (23 Mar) | - | - |
Table - waves today at Porth Dinllaen. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | |||||||||||||||||||||
| 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) (?) | 9 | 4 | 5 | 6 | 6 | 6 | 6 | 7 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 7 | 6 | 5 | 4 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 32 | 0 | 0 | 149 | 171 | 161 | 263 | 475 | 822 | 750 | 751 | 787 | 393 | 686 | 604 | 471 | 300 | 231 | 177 | 173 | 85 | 31 | 15 | 5 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | cross- on | on | on | on | cross- on |
High Tide / height (m) | 11:31PM 3.61 | 11:58AM 3.49 | 12:20AM 3.32 | 12:55PM 3.08 | 1:23AM 3.02 | |||||||||||||||||||
Low Tide / height (m) | 6:18PM 0.47 | 6:41AM 0.53 | 7:10PM 0.81 | 7:42AM 0.81 | 8:16PM 1.12 | 9:03AM 1.01 | ||||||||||||||||||
Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 6:11 | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:07 | - |
| Sunset | - | 6:35 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:38 | - | - | - | - | - | - |
 | |  |  | | | | | |  |  | | | |  |  | | | |  |  | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | 1 | 1 | - | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | - | - | - | - |
| Temp. °C | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 8 | 7 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 6 | 7 | 6 | 6 | 6 |
| Feels °C (?) | 4 | 3 | 2 | 2 | 3 | 4 | 2 | 1 | -1 | -1 | -5 | -5 | -7 | -10 | -7 | -6 | -6 | -4 | -4 | -3 | -2 | -2 | 0 | 0 |
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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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