- Forecast
- Maps
- Live
- Weather State
- Spot Information
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 Sunday 31 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
13.7° C
(Which is 2.0°C warmer than normal for this time of year)How big are the waves at Hells Mouth (Porth Neigwl) today (31 May):
- Afternoon surf: Afternoon surf (31 May, local time) - 2ft (0.6m), 12s period with WSW swell.
- Evening surf: Evening surf (31 May, local time) - 1.5ft (0.5m), 11s period with WSW swell.
The current surf forecast for Hells Mouth (Porth Neigwl) at 11PM is: 0.4m 11s primary swell from a West-southwest direction and 0.9m 5s secondary swell from a Southwest direction (forecast issued at 06:00pm May 31). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | - | - |
| Afternoon (31 May) | 2ft (0.6m) | 12s |
| Evening (31 May) | 1.5ft (0.5m) | 11s |
Table - waves today at Hells Mouth (Porth Neigwl). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 18mm), heaviest on Mon morning. Very mild (max 15°C on Tue afternoon, min 12°C on Tue night). Winds increasing (light winds from the W on Mon night, strong winds from the S by Wed morning). | ||||||||||||||||||||||||
Sun 31 | Monday 1 | Tuesday 2 | Wed 3 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
WSW 11 | SW 11 | WSW 11 | SW 5 | SW 5 | SW 5 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 9 | SW 9 | WSW 9 | SW 8 | SW 8 | SW 6 | SW 7 | |
85 | 242 | 70 | 52 | 54 | 69 | 77 | 77 | 80 | 124 | 90 | 82 | 66 | 49 | 43 | 34 | 34 | 99 | 84 | 168 | 138 | 153 | 171 | 345 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | cross-on | cross | cross | on | on | cross-on | cross-on | on | on | cross-on | on | |
High Tide | 9:14PM4.03m | 9:33AM3.87m | 9:49PM4.04m | 10:08AM3.80m | 10:25PM4.00m | 10:44AM3.70m | ||||||||||||||||||
Low Tide | 3:59PM0.77m | 4:22AM0.68m | 4:32PM0.80m | 4:58AM0.70m | 5:08PM0.84m | 5:37AM0.76m | ||||||||||||||||||
 | |  |  | |  | | | | |  | | | |  | | |  |  | | | | |  | |
 | — | — | — | — | 5:00 | — | — | — | — | — | — | — | 4:58 | — | — | — | — | — | — | — | 4:58 | — | — | — |
 | — | 9:30 | — | — | — | — | — | — | — | 9:31 | — | — | — | — | — | — | — | 9:32 | — | — | — | — | — | 9:34 |
— | — | — | — | — | 3 | 2 | 4 | 3 | 1 | 1 | — | — | 1 | — | — | — | — | — | — | — | 1 | 1 | 1 | |
Temp °C | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 15 | 15 | 13 | 13 | 12 | 13 | 13 |
10 | 10 | 9 | 9 | 8 | 8 | 8 | 10 | 9 | 9 | 9 | 9 | 10 | 12 | 11 | 11 | 11 | 13 | 12 | 10 | 10 | 6 | 6 | 6 | |
Swell 1 Height (m) Direction Period (s) | WSW 11 | — | WSW 11 | WSW 11 | WSW 11 | SW 11 | SW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | SW 6 | SW 6 | SW 6 | SW 6 | — | SW 9 | WSW 9 | NW 4 | NW 4 | NW 4 | — |
 kJ | 85 | — | 70 | 48 | 47 | 30 | 30 | 22 | 11 | 10 | 10 | 10 | 10 | 49 | 43 | 34 | 34 | — | 84 | 168 | 2 | 2 | 1 | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | WSW 11 | WSW 11 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | — | — | — | W 16 | W 16 | NW 4 | — | — |
| kJ | — | — | — | 41 | 23 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | — | — | — | 5 | 5 | 2 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 14 | W 14 | — | — | — | — | W 10 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 4 | 4 | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 6 | SW 11 | SW 5 | SW 5 | SW 5 | SW 5 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | — | WSW 7 | — | — | SW 9 | WSW 4 | WSW 4 | SW 8 | SW 8 | SW 6 | SW 7 |
| kJ | 27 | 242 | 43 | 52 | 54 | 69 | 77 | 77 | 80 | 124 | 90 | 82 | 66 | — | 29 | — | — | 99 | 16 | 10 | 138 | 153 | 171 | 345 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 275 | 255 | 64 | 64 | 184 | 184 | 184 | 184 | 204 | 255 | 184 | 128 | 128 | 5 | 2 | 5 | 258 | 5 | 5 | 5 | 64 | 307 | 307 | 294 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Hells Mouth (Porth Neigwl) surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest