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Hells Mouth (Porth Neigwl) Surf Forecast
/ Wales – Lleyn (14 surf breaks) /
Surf Forecasts:
Hells Mouth (Porth Neigwl) surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 12 pm Saturday 09 May 2026 BSTForecast update in hr min s Forecast update imminent
Hells Mouth (Porth Neigwl) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Hells Mouth (Porth Neigwl) sea temperature is
11.7° C
(Which is 1.4°C warmer than normal for this time of year)Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 11°C on Sat morning, min 8°C on Sat night). Winds decreasing (fresh winds from the N on Sat afternoon, light winds from the W by Mon night). | ||||||||||||||||||||||||
Sat 9 | Sunday 10 | Monday 11 | Tue 12 | |||||||||||||||||||||
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 | 1 AM | 4 AM | 7 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NW 6 | NW 6 | NW 5 | NNW 5 | NW 5 | NNW 4 | N 4 | N 4 | N 4 | NNW 4 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | W 19 | |
0 | 0 | 0 | 0 | 0 | 18 | 5 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 7 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | off | off | 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-on | on | on | cross-on | |
High Tide | 1:56PM2.85m | 2:29AM3.12m | 3:13PM2.78m | 3:48AM3.15m | 4:37PM2.93m | 5:00AM3.35m | ||||||||||||||||||
Low Tide | 9:02AM1.39m | 9:13PM1.53m | 10:08AM1.37m | 10:21PM1.50m | 11:13AM1.23m | 11:28PM1.38m | ||||||||||||||||||
 |  | | |  |  | | | |  | | |  | | | | | | | | | | | | |
 | 5:31 | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — | — | 5:26 | — |
 | — | — | — | 8:58 | — | — | — | — | — | — | — | 9:00 | — | — | — | — | — | — | — | 9:00 | — | — | — | 9:02 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 10 | 11 | 11 | 10 | 9 | 9 | 8 | 8 | 9 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 |
3 | 4 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 3 | 2 | 2 | 3 | 4 | 3 | 3 | 2 | 2 | 3 | 5 | 6 | 7 | 5 | 4 | |
Swell 1 Height (m) Direction Period (s) | NW 6 | — | — | — | NNW 6 | NW 6 | NW 6 | NW 5 | NNW 5 | NW 5 | — | — | — | — | — | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | NNW 4 | — | SW 9 |
 kJ | 9 | — | — | — | 24 | 18 | 5 | 5 | 15 | 1 | — | — | — | — | — | 3 | 3 | 3 | 3 | 3 | 3 | 1 | — | 3 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | NNW 4 | NW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 9 | SW 9 | — |
| kJ | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 19 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 |
Wind waves Height (m) Direction Period (s) | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | N 6 | N 5 | NE 3 | N 5 | NNW 4 | N 4 | N 4 | N 4 | NNW 4 | NNW 4 | NNW 4 | NNW 4 | NNW 5 | NNW 4 | NNW 4 | — | — | W 3 |
| kJ | 55 | 77 | 108 | 106 | 82 | 77 | 41 | 28 | 1 | 17 | 36 | 41 | 16 | 10 | 11 | 21 | 32 | 32 | 44 | 22 | 6 | — | — | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 256 | 476 | 497 | 51 | 225 | 513 | 303 | 314 | 433 | 545 | 308 | 308 | 189 | 198 | 216 | 274 | 274 | 274 | 300 | 298 | 305 | 197 | 197 | 305 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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