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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 Thursday 30 Apr 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
11.3° C
(Which is 1.8°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 9AM is: 0.1m 11s primary swell from a West direction (forecast issued at 12:00am April 30). An open ocean swell of 1.0m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 0.5ft (0.1m) | 11s |
| Afternoon (30 Apr) | 0.5ft (0.1m) | 11s |
| Evening (30 Apr) | 2ft (0.6m) | 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 18°C on Thu afternoon, min 10°C on Fri night). Winds decreasing (fresh winds from the E on Wed night, light winds from the SSW by Fri afternoon). | ||||||||||||||||||||||||
Thursday 30 | Friday 1 | Saturday 2 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SW 12 | SW 12 | SW 11 | W 11 | W 11 | W 11 | W 11 | SE 4 | SW 11 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | W 10 | SW 10 | SW 3 | SSW 3 | SSW 4 | SSW 4 | SW 5 | SW 5 | SW 6 | SW 6 | |
6 | 5 | 5 | 2 | 2 | 2 | 2 | 8 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 3 | 4 | 7 | 13 | 17 | 28 | 39 | 33 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | |
High Tide | 8:07AM4.16m | 8:28PM4.10m | 8:44AM4.23m | 9:03PM4.20m | 9:20AM4.22m | 9:37PM4.23m | ||||||||||||||||||
Low Tide | 3:00AM0.58m | 3:20PM0.40m | 3:34AM0.51m | 3:51PM0.45m | 4:06AM0.49m | 4:20PM0.54m | ||||||||||||||||||
 | |  | | |  | |  | | | |  | | | |  | | | | | | | | | |
 | — | 5:48 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:43 | — | — | — | — | — | — | — | 8:44 | — | — | — | — | — | — | — | 8:45 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 11 | 11 | 13 | 16 | 18 | 18 | 15 | 14 | 14 | 14 | 12 | 12 | 12 | 12 | 12 | 11 | 10 | 10 | 10 | 12 | 12 | 12 | 11 |
3 | 4 | 4 | 6 | 9 | 13 | 13 | 10 | 9 | 9 | 9 | 8 | 9 | 10 | 9 | 9 | 7 | 6 | 6 | 5 | 8 | 8 | 8 | 8 | |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 11 | W 11 | W 11 | W 11 | W 11 | W 11 | SW 11 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | W 10 | SW 10 | W 10 | W 10 | W 10 | SW 8 | WSW 7 | SW 5 | SW 6 | SW 6 |
 kJ | 6 | 5 | 5 | 2 | 2 | 2 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 2 | 2 | 2 | 2 | 5 | 28 | 39 | 33 |
Swell 2 Height (m) Direction Period (s) | W 8 | — | — | — | — | — | — | — | — | — | SW 4 | SW 5 | SW 4 | SW 4 | SW 4 | — | — | W 10 | W 10 | — | — | — | — | — |
| kJ | 1 | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | — | — | 2 | 2 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ESE 4 | ESE 4 | ESE 4 | ESE 4 | SE 4 | SE 4 | SE 4 | SE 4 | SE 3 | ESE 3 | ESE 3 | SE 3 | SSE 3 | — | — | SW 3 | SW 3 | SSW 3 | SSW 4 | SSW 4 | SW 5 | SW 5 | — | — |
| kJ | 15 | 30 | 35 | 35 | 44 | 38 | 21 | 8 | 5 | 4 | 4 | 1 | 1 | — | — | 1 | 3 | 4 | 7 | 13 | 17 | 12 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 297 | 297 | 297 | 298 | 303 | 307 | 98 | 184 | 186 | 198 | 188 | 188 | 138 | 282 | 269 | 247 | 225 | 219 | 138 | 138 | 140 | 312 | 282 | 299 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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