Surf Forecasts:
How big are the waves at Hells Mouth (Porth Neigwl) today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 4ft (1.2m), 5s period with SW swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 8ft (2.4m), 7s period with SW swell.
- Evening surf: Evening surf (18 Sep, local time) - 8ft (2.4m), 8s period with SW swell.
The current surf forecast for Hells Mouth (Porth Neigwl) at 8PM is: 2.5m 8s primary swell from a Southwest direction (forecast issued at 12:00pm September 18). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 4ft (1.2m) | 5s |
| Afternoon (18 Sep) | 8ft (2.4m) | 7s |
| Evening (18 Sep) | 8ft (2.4m) | 8s |
Table - waves today at Hells Mouth (Porth Neigwl). (Swell directed towards the surf break)
Short Range ForecastLight rain (total 9mm), mostly falling on Fri afternoon. Very mild (max 17°C on Sat afternoon, min 12°C on Sun morning). Winds decreasing (near gales from the SW on Fri afternoon, light winds from the W by Sun afternoon). | |||||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | |||||||||||||||||||
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 |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 5 | SW 6 | SW 7 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | W 5 | W 5 | W 5 | SW 6 | SW 6 | NW 5 | SW 6 | SW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 76 | 252 | 728 | 774 | 675 | 657 | 721 | 657 | 489 | 302 | 207 | 178 | 151 | 72 | 76 | 68 | 38 | 31 | 19 | 14 | 13 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on |
High Tide | 1:15PM3.17m | 1:45AM2.89m | 2:13PM2.85m | 3:05AM2.60m | 4:04PM2.70m | ||||||||||||||||
Low Tide | 7:27AM1.41m | 8:05PM1.45m | 8:28AM1.66m | 9:31PM1.65m | 10:10AM1.77m | ||||||||||||||||
 |  |  | |  | | | |  |  | | | |  | | | | | | | | |
 | 6:56 | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — |
 | — | — | — | 7:27 | — | — | — | — | — | — | — | 7:24 | — | — | — | — | — | — | — | 7:22 | — |
mm | — | 1 | 7 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 15 | 14 | 13 | 13 | 13 | 12 | 13 | 13 | 13 |
Feels °C | 9 | 5 | 5 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 12 | 12 | 10 | 8 | 8 | 7 | 8 | 8 | 11 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | NW 5 | NW 5 | — | — | — | — | — | — | — | W 16 | — | — | W 15 | W 14 | W 14 | W 14 | SW 6 | SW 6 | NW 5 | SW 6 | SW 6 |
| kJ | 12 | 4 | — | — | — | — | — | — | — | 5 | — | — | 4 | 4 | 4 | 4 | 38 | 31 | 14 | 14 | 13 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 14 | W 14 | SW 6 | NW 5 | NW 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | 19 | 7 | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 14 | W 14 | W 14 | W 14 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | SW 5 | SW 6 | SW 7 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | W 5 | W 5 | W 5 | NW 5 | NW 5 | — | — | — |
| kJ | 76 | 252 | 728 | 774 | 675 | 657 | 721 | 657 | 489 | 302 | 207 | 178 | 151 | 72 | 76 | 68 | 28 | 23 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 552 | 369 | 505 | 369 | 369 | 463 | 452 | 452 | 463 | 505 | 297 | 258 | 197 | 238 | 123 | 141 | 130 | 141 | 141 | 114 | 128 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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