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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 Saturday 30 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 2.1°C warmer than normal for this time of year)How big are the waves at Hells Mouth (Porth Neigwl) today (30 May):
- Morning surf: Morning surf (30 May, local time) - 1ft (0.3m), 9s period with WSW swell.
- Afternoon surf: Afternoon surf (30 May, local time) - 1ft (0.3m), 9s period with WSW swell.
- Evening surf: Evening surf (30 May, local time) - 1ft (0.3m), 13s period with WSW swell.
The current surf forecast for Hells Mouth (Porth Neigwl) at 5AM is: 0.6m 5s primary swell from a Southwest direction and 0.2m 10s secondary swell from a West-southwest direction (forecast issued at 12:00am May 30). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 May) | 1ft (0.3m) | 9s |
| Afternoon (30 May) | 1ft (0.3m) | 9s |
| Evening (30 May) | 1ft (0.3m) | 13s |
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 13mm), heaviest on Mon afternoon. Very mild (max 14°C on Fri night, min 12°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 1 | ||||||||||||||||||||||
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 5 | SW 5 | SW 5 | WSW 9 | WSW 10 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | SW 5 | SW 5 | SSW 5 | SSW 5 | SSW 5 | SW 5 | SSW 6 | |
27 | 19 | 13 | 17 | 18 | 19 | 18 | 32 | 57 | 56 | 81 | 78 | 90 | 163 | 215 | 82 | 70 | 47 | 47 | 40 | 42 | 46 | 32 | 58 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | on | cross-on | on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | |
High Tide | 8:19AM3.86m | 8:38PM3.97m | 8:57AM3.89m | 9:14PM4.03m | 9:33AM3.87m | 9:49PM4.04m | ||||||||||||||||||
Low Tide | 3:11AM0.76m | 3:25PM0.76m | 3:47AM0.70m | 3:59PM0.77m | 4:22AM0.68m | 4:32PM0.80m | ||||||||||||||||||
 | |  | | |  |  |  |  | | | | | | | | | |  | | | | |  | |
 | — | 5:01 | — | — | — | — | — | — | — | 5:01 | — | — | — | — | — | — | — | 5:00 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:30 | — | — | — | — | — | — | — | 9:30 | — | — | — | — | — | — | — | 9:31 | — |
— | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 1 | 2 | 4 | 7 | |
Temp °C | 13 | 13 | 12 | 13 | 13 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 13 | 13 | 13 | 12 | 13 | 13 | 13 | 14 | 13 |
10 | 10 | 9 | 10 | 10 | 11 | 11 | 10 | 9 | 10 | 11 | 10 | 9 | 9 | 11 | 9 | 10 | 10 | 8 | 8 | 9 | 10 | 11 | 10 | |
Swell 1 Height (m) Direction Period (s) | SW 5 | SW 5 | SW 5 | WSW 9 | WSW 10 | WSW 8 | WSW 9 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | SW 5 | WSW 5 | — | — | WSW 11 | WSW 11 | WSW 11 | SW 11 | SW 11 | SW 11 | WSW 10 | SW 5 | WSW 10 |
 kJ | 27 | 19 | 13 | 17 | 18 | 14 | 7 | 32 | 57 | 56 | 81 | 27 | 19 | — | — | 82 | 70 | 47 | 30 | 30 | 29 | 22 | 32 | 10 |
Swell 2 Height (m) Direction Period (s) | WSW 11 | WSW 11 | WSW 9 | SW 16 | SW 15 | WSW 14 | WSW 13 | WSW 9 | WSW 9 | — | — | WSW 12 | WSW 12 | — | — | — | — | WSW 11 | SW 14 | SW 14 | SW 14 | SW 14 | WSW 10 | SW 14 |
| kJ | 11 | 11 | 8 | 10 | 8 | 19 | 18 | 8 | 8 | — | — | 78 | 90 | — | — | — | — | 40 | 8 | 8 | 8 | 8 | 20 | 8 |
Swell 3 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | — | W 15 | SW 14 | — | W 9 | — | — | — | — | — | — | — | — | — | — | — | — | W 14 | W 14 | SW 14 | W 14 |
| kJ | 9 | 10 | 10 | — | 4 | 8 | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | 8 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 5 | SW 5 | SW 5 | WSW 5 | — | WSW 11 | WSW 11 | SW 5 | SW 5 | SW 5 | SW 5 | SSW 5 | SSW 5 | SSW 5 | SSE 4 | SSW 6 |
| kJ | — | — | — | 12 | 6 | 4 | 8 | 15 | 30 | 33 | 23 | 13 | — | 163 | 215 | 25 | 28 | 45 | 47 | 40 | 42 | 46 | 10 | 58 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 128 | 107 | 73 | 135 | 255 | 5 | 204 | 123 | 64 | 64 | 5 | 5 | 275 | 304 | 305 | 64 | 64 | 38 | 184 | 155 | 184 | 135 | 299 | 184 |
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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