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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 Thursday 28 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
13.0° C
(Which is 1.4°C warmer than normal for this time of year)How big are the waves at Hells Mouth (Porth Neigwl) today (28 May):
- Morning surf: Morning surf (28 May, local time) - 0.5ft (0.1m), 16s period with W swell.
- Afternoon surf: Afternoon surf (28 May, local time) - 0.5ft (0.1m), 16s period with SW swell.
- Evening surf: Evening surf (28 May, local time) - 2.5ft (0.8m), 4s period with SW swell.
The current surf forecast for Hells Mouth (Porth Neigwl) at 3PM is: 0.1m 16s primary swell from a Southwest direction and 0.4m 3s secondary swell from a Southwest direction (forecast issued at 12:00pm May 28). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 May) | 0.5ft (0.1m) | 16s |
| Afternoon (28 May) | 0.5ft (0.1m) | 16s |
| Evening (28 May) | 2.5ft (0.8m) | 4s |
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. Very mild (max 17°C on Thu morning, min 12°C on Fri morning). Mainly fresh winds. | ||||||||||||||||||||||||
Thu 28 | Friday 29 | Saturday 30 | Sun 31 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
W 16 | W 16 | SW 16 | SW 4 | SW 4 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | WSW 9 | WSW 10 | WSW 8 | WSW 14 | WSW 13 | WSW 12 | WSW 12 | SW 5 | |
5 | 5 | 10 | 11 | 27 | 35 | 37 | 38 | 29 | 29 | 29 | 30 | 38 | 27 | 19 | 18 | 17 | 18 | 14 | 18 | 31 | 58 | 81 | 56 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | on | on | on | cross-on | cross-on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | on | |
High Tide | 7:23PM3.71m | 7:40AM3.80m | 8:01PM3.86m | 8:19AM3.86m | 8:38PM3.97m | |||||||||||||||||||
Low Tide | 2:13PM0.78m | 2:33AM0.85m | 2:51PM0.76m | 3:11AM0.76m | 3:25PM0.76m | 3:47AM0.70m | ||||||||||||||||||
 |  |  | |  | |  | | | | | | | | | | | | | | | | | | |
 | 5:03 | — | — | — | — | — | 5:03 | — | — | — | — | — | — | — | 5:01 | — | — | — | — | — | — | — | 5:01 | — |
 | — | — | — | 9:27 | — | — | — | — | — | — | — | 9:28 | — | — | — | — | — | — | — | 9:30 | — | — | — | 9:30 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 17 | 15 | 14 | 15 | 14 | 13 | 13 | 12 | 13 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 13 | 14 | 14 | 13 | 13 | 13 | 12 |
15 | 16 | 13 | 9 | 10 | 10 | 9 | 10 | 9 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 8 | 9 | 11 | 11 | 9 | 9 | 10 | 9 | |
Swell 1 Height (m) Direction Period (s) | — | — | SW 16 | — | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 15 | WSW 12 | WSW 11 | SW 5 | SW 5 | SW 5 | SW 5 | WSW 10 | WSW 8 | WSW 8 | WSW 13 | WSW 12 | WSW 12 | WSW 12 |
 kJ | — | — | 10 | — | 10 | 10 | 10 | 9 | 8 | 8 | 9 | 14 | 12 | 27 | 19 | 18 | 11 | 18 | 14 | 7 | 31 | 58 | 81 | 56 |
Swell 2 Height (m) Direction Period (s) | W 16 | W 16 | — | — | — | — | — | — | — | W 11 | W 12 | SW 15 | SW 15 | WSW 11 | WSW 11 | WSW 9 | WSW 9 | SW 15 | SW 14 | WSW 14 | WSW 9 | WSW 9 | — | — |
| kJ | 5 | 5 | — | — | — | — | — | — | — | 2 | 3 | 9 | 9 | 11 | 11 | 8 | 17 | 8 | 8 | 18 | 8 | 8 | — | — |
Swell 3 Height (m) Direction Period (s) | W 6 | W 6 | W 6 | — | — | — | — | — | — | — | — | W 16 | W 15 | SW 16 | SW 16 | SW 16 | SW 16 | W 15 | SW 14 | WSW 13 | WSW 8 | WSW 9 | — | — |
| kJ | 1 | 1 | 1 | — | — | — | — | — | — | — | — | 5 | 5 | 9 | 10 | 10 | 10 | 4 | 8 | 18 | 6 | 9 | — | — |
Wind waves Height (m) Direction Period (s) | SE 3 | SSW 3 | SW 3 | SW 4 | SW 4 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | — | — | — | SSE 2 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 5 | SW 5 |
| kJ | 2 | 1 | 2 | 11 | 27 | 35 | 37 | 38 | 29 | 29 | 29 | 30 | 38 | — | — | — | 1 | 7 | 6 | 9 | 11 | 19 | 43 | 49 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 375 | 297 | 497 | 297 | 297 | 308 | 297 | 297 | 297 | 297 | 255 | 141 | 141 | 128 | 107 | 107 | 161 | 239 | 255 | 144 | 73 | 64 | 64 | 123 |
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)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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