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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 23 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
12.1° C
(Which is slightly warmer than usual)How big are the waves at Hells Mouth (Porth Neigwl) today?
The current surf forecast for Hells Mouth (Porth Neigwl) at 5PM is: 0.6m 9s primary swell from a Southwest direction and 0.4m 10s secondary swell from a Southwest direction (forecast issued at 12:00pm May 23). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 May) | 2.5ft (0.7m) | 10s |
| Afternoon (23 May) | 2ft (0.6m) | 10s |
| Evening (23 May) | 1.5ft (0.4m) | 9s |
Table - waves today at Hells Mouth (Porth Neigwl). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 23°C on Mon afternoon, min 11°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||||||
Sat 23 | Sunday 24 | Monday 25 | Tue 26 | |||||||||||||||||||||
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 10 | SW 10 | SW 9 | SW 9 | WSW 9 | SW 9 | SW 9 | SW 9 | SW 9 | WSW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | |
98 | 76 | 71 | 41 | 32 | 20 | 20 | 20 | 19 | 28 | 18 | 17 | 17 | 17 | 10 | 10 | 10 | 7 | 7 | 7 | 6 | 5 | 5 | 5 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | glassy | cross-off | cross-off | cross-off | glassy | glassy | cross-off | off | cross-off | off | cross-off | |
High Tide | 2:23PM3.18m | 2:52AM3.59m | 3:42PM3.06m | 4:09AM3.50m | 4:56PM3.14m | 5:17AM3.53m | ||||||||||||||||||
Low Tide | 9:24AM0.78m | 9:40PM1.18m | 10:30AM0.87m | 10:47PM1.23m | 11:36AM0.89m | 11:55PM1.19m | ||||||||||||||||||
 | | | |  |  | | |  | | | | | | | | | | | | | | | | |
 | 5:09 | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:05 | — |
 | — | — | — | 9:20 | — | — | — | — | — | — | — | 9:22 | — | — | — | — | — | — | — | 9:22 | — | — | — | 9:23 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 13 | 14 | 16 | 18 | 19 | 19 | 19 | 20 | 21 | 22 | 23 | 23 | 23 | 23 | 21 | 21 |
8 | 9 | 9 | 9 | 9 | 10 | 9 | 9 | 10 | 11 | 13 | 16 | 17 | 17 | 17 | 18 | 20 | 23 | 24 | 24 | 25 | 24 | 22 | 22 | |
Swell 1 Height (m) Direction Period (s) | SW 10 | SW 10 | SW 10 | SW 9 | WSW 9 | WSW 4 | SW 4 | SW 4 | SW 9 | WSW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 |
 kJ | 98 | 76 | 23 | 41 | 32 | 13 | 9 | 4 | 19 | 28 | 18 | 17 | 17 | 17 | 10 | 10 | 10 | 6 | 6 | 5 | 5 | 5 | 5 | 5 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 13 | SW 13 | SW 9 | SW 9 | SW 9 | SW 4 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | W 13 | W 12 | W 12 |
| kJ | — | — | — | 7 | 7 | 20 | 20 | 20 | 4 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 14 | SW 14 | SW 14 | SW 14 | SW 14 | W 14 | W 14 | — | — | — | — | — | — | — | — | — | W 14 | — | — | — |
| kJ | — | — | — | — | 4 | 7 | 8 | 8 | 8 | 4 | 4 | — | — | — | — | — | — | — | — | — | 4 | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 4 | SW 4 | SW 9 | SW 4 | WSW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 3 | 71 | 8 | 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 128 | 5 | 128 | 128 | 5 | 114 | 107 | 107 | 114 | 114 | 114 | 114 | 114 | 114 | 114 | 114 | 140 | 184 | 184 | 114 | 128 | 128 | 136 | 114 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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