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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 6 pm 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
13.0° C
(Which is 1.5°C warmer than normal for this time of year)How big are the waves at Hells Mouth (Porth Neigwl) today (27 May):
- Afternoon surf: Afternoon surf (27 May, local time) - 0.5ft (0.1m), 18s period with W swell.
- Evening surf: Evening surf (27 May, local time) - 0.5ft (0.1m), 18s period with W swell.
The current surf forecast for Hells Mouth (Porth Neigwl) at 10PM is: 0.1m 18s primary swell from a West direction and 0.1m 7s secondary swell from a West direction (forecast issued at 06:00pm May 27). An open ocean swell of 0.5m 3s 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) | - | - |
| Afternoon (27 May) | 0.5ft (0.1m) | 18s |
| 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 5mm), mostly falling on Wed afternoon. Warm (max 24°C on Wed afternoon, min 12°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Wed 27 | Thursday 28 | Friday 29 | Sat 30 | |||||||||||||||||||||
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 | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
W 18 | W 18 | W 18 | W 18 | W 18 | W 17 | W 16 | W 16 | SW 16 | SW 4 | SW 4 | SSW 4 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | WSW 10 | WSW 10 | |
6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 10 | 10 | 29 | 35 | 42 | 42 | 43 | 42 | 34 | 32 | 34 | 21 | 19 | 14 | 18 | 18 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross | on | on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 6:42PM3.52m | 6:59AM3.71m | 7:23PM3.71m | 7:40AM3.80m | 8:01PM3.86m | 8:19AM3.86m | ||||||||||||||||||
Low Tide | 1:29PM0.81m | 1:49AM0.96m | 2:13PM0.78m | 2:33AM0.85m | 2:51PM0.76m | 3:11AM0.76m | ||||||||||||||||||
 |  |  |  |  | | |  | |  |  | | | | | | | | | | | | | | |
 | — | — | — | — | 5:03 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — | — | 5:01 | — | — | — |
 | — | 9:25 | — | — | — | — | — | — | — | 9:27 | — | — | — | — | — | — | — | 9:28 | — | — | — | — | — | 9:30 |
— | 4 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 24 | 23 | 20 | 17 | 16 | 16 | 17 | 16 | 15 | 13 | 14 | 13 | 12 | 13 | 13 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 |
23 | 23 | 20 | 17 | 13 | 13 | 14 | 16 | 15 | 13 | 8 | 10 | 9 | 8 | 9 | 10 | 12 | 12 | 11 | 12 | 10 | 11 | 10 | 10 | |
Swell 1 Height (m) Direction Period (s) | NNW 4 | NW 4 | — | — | W 6 | W 6 | W 16 | — | SW 16 | SW 16 | SW 16 | SW 16 | W 16 | SW 15 | SW 15 | SW 14 | SW 15 | WSW 12 | SW 5 | SW 5 | SW 5 | SW 5 | WSW 10 | WSW 10 |
 kJ | 2 | 1 | — | — | 1 | 1 | 5 | — | 10 | 10 | 10 | 10 | 5 | 9 | 8 | 8 | 9 | 14 | 34 | 21 | 19 | 14 | 18 | 18 |
Swell 2 Height (m) Direction Period (s) | W 7 | W 7 | W 7 | W 6 | W 18 | W 17 | W 6 | W 16 | W 6 | — | — | — | — | — | — | W 11 | W 12 | SW 15 | WSW 11 | WSW 11 | WSW 11 | WSW 9 | SW 16 | SW 15 |
| kJ | 1 | 1 | 1 | 1 | 6 | 6 | 1 | 5 | 1 | — | — | — | — | — | — | 2 | 3 | 9 | 12 | 11 | 11 | 8 | 10 | 8 |
Swell 3 Height (m) Direction Period (s) | W 18 | W 18 | W 18 | W 18 | — | — | — | W 6 | — | — | — | — | — | — | — | — | — | W 16 | SW 15 | SW 16 | SW 16 | SW 7 | — | — |
| kJ | 6 | 6 | 6 | 6 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | 5 | 9 | 9 | 10 | 2 | — | — |
Wind waves Height (m) Direction Period (s) | ESE 3 | ESE 3 | ESE 3 | ESE 3 | ESE 3 | SE 3 | SE 3 | — | SSW 2 | SW 4 | SW 4 | SSW 4 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | — | — | — | — | SW 5 | SW 4 |
| kJ | 1 | 1 | 5 | 8 | 7 | 5 | 2 | — | 1 | 10 | 29 | 35 | 42 | 42 | 43 | 42 | 34 | 32 | — | — | — | — | 8 | 7 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 138 | 187 | 138 | 189 | 189 | 216 | 282 | 296 | 297 | 553 | 297 | 308 | 297 | 297 | 297 | 297 | 255 | 141 | 137 | 128 | 107 | 107 | 107 | 255 |
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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