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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 Monday 25 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
12.3° C
(Which is 1.0°C warmer than normal for this time of year)How big are the waves at Hells Mouth (Porth Neigwl) today?
The current surf forecast for Hells Mouth (Porth Neigwl) at 8PM is: 0.1m 13s primary swell from a Southwest direction and 0.2m 7s secondary swell from a West-southwest direction (forecast issued at 12:00pm May 25). The wind direction is predicted to be glassy.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 May) | 1ft (0.3m) | 8s |
| Afternoon (25 May) | 0.5ft (0.2m) | 8s |
| Evening (25 May) | 0.5ft (0.2m) | 7s |
Table - waves today at Hells Mouth (Porth Neigwl). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Wed night. Warm (max 24°C on Mon afternoon, min 16°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 25 | Tuesday 26 | Wednesday 27 | Thu 28 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SW 8 | SW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | W 12 | W 12 | W 12 | W 12 | W 13 | W 13 | W 13 | W 13 | W 12 | SE 4 | W 7 | W 18 | W 18 | W 18 | W 17 | |
10 | 10 | 7 | 7 | 6 | 5 | 6 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 6 | 6 | 6 | 6 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | glassy | glassy | glassy | glassy | glassy | cross-off | glassy | cross-off | cross | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 4:56PM3.14m | 5:17AM3.53m | 5:55PM3.32m | 6:12AM3.61m | 6:42PM3.52m | 6:59AM3.71m | ||||||||||||||||||
Low Tide | 11:36AM0.89m | 11:55PM1.19m | 12:37PM0.86m | 00:57AM1.09m | 1:29PM0.81m | 1:49AM0.96m | ||||||||||||||||||
 | | | |  | | | | | | | | | | | | | | | | |  |  |  | |
 | 5:07 | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:03 | — |
 | — | — | — | 9:22 | — | — | — | — | — | — | — | 9:23 | — | — | — | — | — | — | — | 9:25 | — | — | — | 9:27 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | |
Temp °C | 22 | 23 | 24 | 24 | 24 | 23 | 22 | 21 | 21 | 22 | 23 | 22 | 22 | 21 | 20 | 19 | 18 | 19 | 21 | 23 | 21 | 18 | 16 | 16 |
22 | 24 | 24 | 25 | 25 | 25 | 23 | 23 | 22 | 22 | 23 | 21 | 21 | 20 | 20 | 18 | 16 | 18 | 21 | 22 | 19 | 14 | 12 | 12 | |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | SW 7 | SW 7 | SW 7 | SW 7 | NNW 4 | NNW 4 | NNW 5 | NNW 5 | NNW 5 | ESE 3 | NW 4 | — | W 6 | W 6 | W 6 |
 kJ | 10 | 10 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 2 | 2 | 2 | 2 | 7 | 8 | 9 | 5 | 2 | 1 | 1 | — | 1 | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | W 13 | SW 12 | W 12 | W 12 | W 12 | W 12 | W 12 | W 12 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | NNW 4 | — | W 7 | W 18 | W 18 | W 17 |
| kJ | 7 | 7 | 7 | 7 | 6 | 3 | 6 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | — | 1 | 6 | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | W 13 | W 13 | W 13 | W 13 | W 12 | SE 4 | W 7 | W 18 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 6 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | NNW 3 | NNW 4 | NNW 4 | — | — | ESE 2 | SE 3 | SE 3 | — | ESE 3 | ESE 4 | ESE 4 | ESE 4 | ESE 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | 2 | 5 | 9 | — | — | 1 | 2 | 2 | — | 1 | 11 | 18 | 8 | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 140 | 175 | 114 | 114 | 114 | 114 | 132 | 114 | 132 | 128 | 128 | 128 | 128 | 114 | 114 | 114 | 138 | 138 | 138 | 187 | 138 | 189 | 201 | 189 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
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Ocean Swells (m)- Wind Speed (km/h)
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