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Surf Forecasts:
Porth Dinllaen surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 11 am Tuesday 23 Dec 2025 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
10.1° C
(Which is normal for this time of year)How big are the waves at Porth Dinllaen today?
The current surf forecast for Porth Dinllaen at 2PM is: 0.1m 8s primary swell from a Southwest direction (forecast issued at 11:00am December 23). The wind direction is predicted to be cross-offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Dec) | 0.5ft (0.1m) | 8s |
| Afternoon (23 Dec) | 0.5ft (0.1m) | 8s |
| Evening (23 Dec) | 0.5ft (0.1m) | 14s |
Table - waves today at Porth Dinllaen. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 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) (?) | 8 | 8 | 8 | 8 | 14 | 8 | 7 | 7 | - | 9 | 9 | - | 12 | 12 | 8 | 9 | 11 | 11 | 10 | 3 | 3 | 4 | 3 | 3 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3 | 3 | 2 | 2 | 4 | 1 | 1 | 1 | 0 | 1 | 2 | 0 | 3 | 3 | 1 | 2 | 2 | 2 | 2 | 0 | 0 | 1 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | glass | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 10:16AM 3.58 | 10:34PM 3.17 | 10:53AM 3.55 | 11:12PM 3.08 | 11:32AM 3.49 | 11:56PM 2.99 | ||||||||||||||||||
Low Tide / height (m) | 5:32PM 0.52 | 5:37AM 0.65 | 6:12PM 0.57 | 6:16AM 0.75 | 6:55PM 0.63 | |||||||||||||||||||
Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | |||||||||||||||||||||
| Sunrise | 8:29 | - | - | - | - | - | - | - | 8:30 | - | - | - | - | - | - | - | 8:30 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:04 | - | - | - | - | - | - | - | 4:04 | - | - | - | - | - | - | - | 4:05 | - | - | - | - | - |
 |  | |  | | | |  | | |  | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 9 | 9 | 8 | 7 | 6 | 5 | 5 | 4 | 4 | 4 | 5 | 3 | 3 | 3 | 3 | 3 | 4 | 5 | 5 | 5 | 5 | 4 | 5 | 4 |
| Feels °C (?) | 7 | 7 | 5 | 3 | 2 | 1 | 2 | -1 | -1 | 0 | 1 | -1 | -1 | -2 | -2 | -4 | -3 | -2 | -3 | -2 | -2 | -2 | 0 | -1 |
- 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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