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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 12 am Thursday 30 Apr 2026 BSTForecast 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
11.4° C
(Which is 1.9°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 5AM is: 0.1m 12s primary swell from a West direction (forecast issued at 12:00am April 30). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 0.5ft (0.1m) | 11s |
| Afternoon (30 Apr) | 0.5ft (0.1m) | 11s |
| Evening (30 Apr) | 0.5ft (0.1m) | 11s |
Table - waves today at Porth Dinllaen. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 18°C on Thu afternoon, min 10°C on Fri night). Winds decreasing (fresh winds from the ESE on Thu morning, light winds from the SE by Thu night). | ||||||||||||||||||||||||
Thursday 30 | Friday 1 | Saturday 2 | ||||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 12 | W 11 | W 11 | W 11 | W 10 | W 8 | SW 7 | SW 5 | SW 5 | SW 6 | |
3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 2 | 2 | 2 | 2 | 1 | 2 | 28 | 28 | 30 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | 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 | 8:31AM3.61m | 8:52PM3.53m | 9:07AM3.66m | 9:25PM3.63m | 9:42AM3.65m | 9:58PM3.66m | ||||||||||||||||||
Low Tide | 3:15AM0.43m | 3:36PM0.25m | 3:51AM0.36m | 4:09PM0.30m | 4:25AM0.35m | 4:40PM0.40m | ||||||||||||||||||
 | |  | | | | | | |  | |  |  | | |  | | | | | | | | | |
 | — | 5:48 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:43 | — | — | — | — | — | — | — | 8:45 | — | — | — | — | — | — | — | 8:46 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 11 | 11 | 14 | 17 | 18 | 18 | 15 | 14 | 14 | 14 | 13 | 12 | 13 | 12 | 11 | 11 | 10 | 10 | 11 | 12 | 13 | 12 | 11 |
5 | 5 | 6 | 9 | 10 | 13 | 14 | 11 | 10 | 10 | 10 | 9 | 9 | 11 | 9 | 8 | 8 | 7 | 6 | 7 | 7 | 9 | 8 | 8 | |
Swell 1 Height (m) Direction Period (s) | — | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | S 4 | S 3 | SW 4 | SW 4 | SW 4 | W 10 | W 12 | W 11 | W 11 | W 11 | W 10 | W 8 | SW 7 | SW 5 | SW 5 | SW 6 |
 kJ | — | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 3 | 2 | 2 | 2 | 2 | 1 | 2 | 28 | 28 | 30 |
Swell 2 Height (m) Direction Period (s) | W 12 | — | — | — | — | — | — | — | W 11 | — | W 10 | W 10 | W 10 | SW 4 | SW 4 | — | — | — | — | — | — | — | — | — |
| kJ | 3 | — | — | — | — | — | — | — | 2 | — | 2 | 2 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 3 | E 3 | ESE 4 | SE 4 | SE 4 | SE 4 | SSE 4 | SSE 4 | SE 3 | ESE 2 | SSE 3 | SSE 3 | S 3 | SSW 4 | SSW 4 | SW 3 | SSW 3 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | — | — | — |
| kJ | 3 | 4 | 11 | 9 | 24 | 27 | 16 | 7 | 3 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 5 | 7 | 11 | 19 | 17 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 285 | 285 | 285 | 286 | 290 | 299 | 98 | 193 | 193 | 211 | 202 | 202 | 151 | 282 | 282 | 261 | 239 | 232 | 151 | 151 | 153 | 299 | 295 | 287 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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