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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 6 pm Tuesday 19 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
11.8° C
(Which is slightly warmer than usual)How big are the waves at Porth Dinllaen today?
The current surf forecast for Porth Dinllaen at 9PM is: 2.1m 8s primary swell from a Southwest direction (forecast issued at 06:00pm May 19). The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | - | - |
| Afternoon (19 May) | 6ft (1.8m) | 7s |
| Evening (19 May) | 7ft (2.1m) | 8s |
Table - waves today at Porth Dinllaen. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Wed night. Very mild (max 17°C on Thu night, min 11°C on Tue afternoon). Winds decreasing (strong winds from the SSW on Tue night, light winds from the SE by Thu night). | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 7 | SW 7 | SW 8 | SW 8 | SW 9 | SW 9 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | WSW 8 | SW 8 | SW 6 | SW 6 | SW 6 | SW 6 | SW 7 | SW 7 | SW 7 | SW 7 | WSW 9 | WSW 9 | SW 6 | |
317 | 440 | 595 | 575 | 572 | 470 | 231 | 233 | 206 | 167 | 151 | 47 | 35 | 0 | 120 | 98 | 94 | 75 | 71 | 52 | 54 | 33 | 35 | 56 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | |
High Tide | 11:17PM3.95m | 11:47AM3.57m | 00:07AM3.78m | 12:42PM3.26m | 1:03AM3.55m | |||||||||||||||||||
Low Tide | 6:08PM0.30m | 6:39AM0.09m | 6:59PM0.49m | 7:35AM0.25m | 7:53PM0.69m | 8:35AM0.43m | ||||||||||||||||||
 | |  |  |  |  | |  | | |  | |  | | | | | | | | | | | | |
 | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:09 | — | — | — |
 | — | 9:15 | — | — | — | — | — | — | — | 9:15 | — | — | — | — | — | — | — | 9:17 | — | — | — | — | — | 9:19 |
— | — | — | 1 | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 11 | 12 | 11 | 11 | 12 | 12 | 12 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 15 | 16 | 16 | 17 | 16 | 16 | 15 | 15 | 16 |
6 | 3 | 4 | 4 | 4 | 6 | 5 | 5 | 6 | 6 | 8 | 7 | 7 | 8 | 8 | 10 | 11 | 13 | 15 | 13 | 12 | 11 | 12 | 13 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | WSW 9 | WSW 8 | SW 8 | — | W 15 | W 15 | W 15 | SW 7 | SW 7 | SW 7 | SW 7 | WSW 9 | WSW 9 | SW 10 |
 kJ | — | — | — | — | — | — | — | — | — | — | 35 | 47 | 35 | — | 5 | 4 | 4 | 75 | 71 | 52 | 54 | 33 | 35 | 25 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | WSW 8 | — | — | — | — | — | W 15 | W 15 | W 15 | W 15 | W 14 | SW 8 | SW 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 28 | — | — | — | — | — | 4 | 4 | 4 | 4 | 4 | 2 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 7 | SW 7 | SW 8 | SW 8 | SW 9 | SW 9 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | — | — | SSE 2 | SSE 3 | SSW 5 | SSW 6 | SW 6 |
| kJ | 317 | 440 | 595 | 575 | 572 | 470 | 231 | 233 | 206 | 167 | 151 | 116 | 114 | 126 | 120 | 98 | 94 | — | — | 1 | 1 | 27 | 41 | 56 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 328 | 313 | 308 | 285 | 285 | 282 | 287 | 282 | 343 | 306 | 273 | 268 | 62 | 76 | 76 | 167 | 169 | 153 | 151 | 13 | 31 | 31 | 87 | 31 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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