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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 am 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) | 1ft (0.3m) | 10s |
| 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 | |||||||||||||||||||||
| 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) (?) | 10 | 9 | 9 | 4 | 5 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 15 | 14 | 32 | 0 | 0 | 149 | 177 | 193 | 321 | 522 | 803 | 875 | 655 | 523 | 448 | 527 | 512 | 384 | 321 | 263 | 182 | 167 | 90 | 114 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- off | cross- off | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | on | on | on |
High Tide / height (m) | 11:10AM 3.85 | 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 | |||||||||||||||||||
Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | |||||||||||||||||||||
| Sunrise | 6:13 | - | - | - | - | - | - | - | 6:11 | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 6:35 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:38 | - | - | - | - |
 | | | |  |  | | | | |  |  |  | |  | |  | | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 2 | 4 | 1 | - | 2 | 2 | - | 1 | 1 | 1 | 1 | - | - | - |
| Temp. °C | 8 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 7 | 7 | 5 | 5 | 5 | 6 | 6 | 7 | 6 | 6 | 6 | 6 |
| Feels °C (?) | 5 | 5 | 4 | 3 | 2 | 1 | 3 | 3 | 1 | 0 | -1 | 1 | -6 | -5 | -5 | -8 | -7 | -5 | -6 | -4 | -4 | -4 | -3 | -2 |
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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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