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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 Friday 22 May 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
12.0° C
(Which is 1.0°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 6AM is: 0.4m 8s primary swell from a West-southwest direction and 0.1m 14s secondary swell from a West direction (forecast issued at 12:00am May 22). An open ocean swell of 0.8m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 May) | 1.5ft (0.4m) | 9s |
| Afternoon (22 May) | 2.5ft (0.8m) | 7s |
| Evening (22 May) | 1.5ft (0.4m) | 10s |
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 19°C on Sun afternoon, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 22 | Saturday 23 | Sunday 24 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SW 7 | SW 8 | WSW 9 | SW 9 | SW 7 | SW 7 | SW 11 | WSW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | |
65 | 28 | 32 | 21 | 77 | 64 | 159 | 42 | 50 | 48 | 48 | 98 | 76 | 57 | 21 | 20 | 19 | 12 | 11 | 11 | 17 | 10 | 10 | 10 | |
Wind (km/h) | ||||||||||||||||||||||||
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 | cross-off | cross-off | |
High Tide | 1:03AM3.55m | 1:44PM2.95m | 2:08AM3.33m | 2:59PM2.73m | 3:23AM3.17m | 4:24PM2.68m | ||||||||||||||||||
Low Tide | 8:35AM0.43m | 8:51PM0.88m | 9:39AM0.58m | 9:55PM1.01m | 10:47AM0.67m | |||||||||||||||||||
 | |  |  | | | |  | |  |  | | | | | | | | | | | | | | |
 | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:19 | — | — | — | — | — | — | — | 9:21 | — | — | — | — | — | — | — | 9:22 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 16 | 14 | 14 | 15 | 16 | 15 | 14 | 14 | 13 | 12 | 12 | 12 | 14 | 14 | 14 | 13 | 13 | 13 | 14 | 16 | 17 | 19 | 19 |
13 | 12 | 11 | 11 | 12 | 13 | 12 | 11 | 12 | 11 | 10 | 9 | 10 | 11 | 11 | 11 | 10 | 10 | 11 | 12 | 14 | 14 | 17 | 16 | |
Swell 1 Height (m) Direction Period (s) | SW 7 | SW 8 | WSW 9 | SW 9 | SW 10 | SW 11 | — | WSW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 4 | SW 4 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 |
 kJ | 65 | 28 | 32 | 19 | 28 | 29 | — | 42 | 50 | 48 | 48 | 98 | 76 | 57 | 21 | 20 | 19 | 5 | 2 | 11 | 17 | 10 | 10 | 10 |
Swell 2 Height (m) Direction Period (s) | W 15 | W 14 | — | WSW 10 | — | — | — | — | — | — | — | — | — | — | SW 13 | SW 13 | SW 13 | SW 9 | SW 8 | SW 4 | W 14 | W 14 | W 13 | W 13 |
| kJ | 4 | 4 | — | 21 | — | — | — | — | — | — | — | — | — | — | 7 | 7 | 7 | 12 | 11 | 2 | 4 | 4 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 14 | SW 14 | W 14 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 8 | 4 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 3 | SSW 4 | SSW 5 | SSW 6 | SW 7 | SW 7 | SW 11 | SW 5 | SW 5 | SW 4 | SW 4 | — | — | — | SW 4 | SW 4 | SW 4 | — | — | — | — | — | — | — |
| kJ | 2 | 15 | 33 | 59 | 77 | 64 | 159 | 28 | 17 | 12 | 6 | — | — | — | 3 | 6 | 6 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 87 | 47 | 31 | 149 | 13 | 13 | 87 | 87 | 13 | 13 | 87 | 142 | 13 | 13 | 142 | 120 | 120 | 120 | 120 | 127 | 127 | 141 | 127 | 127 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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