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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 am Wednesday 27 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
12.6° C
(Which is 1.2°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 6AM is: 0.1m 13s primary swell from a West direction and 0.1m 7s secondary swell from a Southwest direction (forecast issued at 12:00am May 27). An open ocean swell of 0.4m 5s is not directed at the surf break, a second open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 May) | 0.5ft (0.1m) | 13s |
| Afternoon (27 May) | 0.5ft (0.1m) | 4s |
| Evening (27 May) | 0.5ft (0.1m) | 18s |
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 4mm), mostly falling on Wed afternoon. Warm (max 23°C on Tue night, min 12°C on Thu night). Winds increasing (light winds from the NE on Wed afternoon, fresh winds from the SW by Thu night). | ||||||||||||||||||||||||
Wednesday 27 | Thursday 28 | Friday 29 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
W 13 | W 13 | W 13 | W 13 | W 12 | W 7 | W 18 | W 18 | W 18 | W 18 | W 17 | W 16 | W 16 | SW 16 | SW 4 | SW 4 | SW 4 | SW 5 | WSW 5 | WSW 5 | SW 5 | SW 5 | SW 5 | SW 5 | |
3 | 3 | 3 | 3 | 3 | 1 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 10 | 10 | 20 | 27 | 25 | 19 | 14 | 11 | 12 | 14 | 12 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | on | on | cross-on | on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | |
High Tide | 6:12AM3.61m | 6:42PM3.52m | 6:59AM3.71m | 7:23PM3.71m | 7:40AM3.80m | 8:01PM3.86m | ||||||||||||||||||
Low Tide | 00:57AM1.09m | 1:29PM0.81m | 1:49AM0.96m | 2:13PM0.78m | 2:33AM0.85m | 2:51PM0.76m | ||||||||||||||||||
 | |  | |  |  | |  |  |  | | |  | | |  | | | | | | | |  | |
 | — | 5:05 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:25 | — | — | — | — | — | — | — | 9:27 | — | — | — | — | — | — | — | 9:28 | — |
— | — | — | — | — | 1 | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 21 | 21 | 18 | 18 | 20 | 22 | 23 | 22 | 18 | 16 | 15 | 16 | 18 | 17 | 14 | 12 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 |
21 | 21 | 16 | 17 | 19 | 23 | 22 | 20 | 14 | 12 | 12 | 14 | 17 | 16 | 11 | 7 | 9 | 10 | 11 | 11 | 12 | 11 | 11 | 11 | |
Swell 1 Height (m) Direction Period (s) | N 4 | NNW 4 | NW 5 | NNW 5 | NNW 5 | ESE 3 | NW 4 | — | W 6 | W 6 | W 6 | W 16 | — | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 5 | WSW 5 | SW 5 | SW 15 | WSW 12 | WSW 11 |
 kJ | 9 | 8 | 6 | 4 | 2 | 1 | 1 | — | 1 | 1 | 1 | 5 | — | 10 | 10 | 10 | 10 | 10 | 17 | 14 | 11 | 9 | 14 | 12 |
Swell 2 Height (m) Direction Period (s) | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | NW 4 | W 7 | W 7 | W 18 | W 18 | W 17 | W 6 | W 16 | — | — | — | — | — | SW 15 | SW 15 | SW 14 | W 12 | SW 15 | SW 15 |
| kJ | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 6 | 6 | 6 | 1 | 5 | — | — | — | — | — | 9 | 8 | 8 | 3 | 9 | 9 |
Swell 3 Height (m) Direction Period (s) | W 13 | W 13 | W 13 | W 13 | W 12 | W 7 | W 18 | W 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 15 | W 15 |
| kJ | 3 | 3 | 3 | 3 | 3 | 1 | 6 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | ESE 3 | ESE 3 | ESE 3 | — | ESE 3 | ESE 3 | ESE 4 | ESE 3 | SE 3 | SE 3 | SSW 2 | SW 3 | SW 4 | SW 4 | SW 4 | SW 5 | WSW 5 | — | — | SW 5 | SW 5 | SW 5 |
| kJ | — | — | 1 | 2 | 2 | — | 1 | 5 | 11 | 8 | 5 | 3 | 1 | 2 | 7 | 20 | 27 | 25 | 19 | — | — | 12 | 11 | 10 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 128 | 114 | 114 | 138 | 297 | 138 | 187 | 189 | 189 | 189 | 189 | 282 | 297 | 297 | 536 | 297 | 297 | 308 | 297 | 297 | 297 | 285 | 281 | 143 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
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Ocean Swells (m)- Wind Speed (km/h)
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