Surf Forecasts:
How big are the waves at Hells Mouth (Porth Neigwl) today (10 Sep):
- Morning surf: Morning surf (10 Sep, local time) - 3.5ft (1.1m), 5s period with SW swell.
- Afternoon surf: Afternoon surf (10 Sep, local time) - 6.5ft (2.0m), 6s period with SW swell.
- Evening surf: Evening surf (10 Sep, local time) - 5ft (1.6m), 7s period with SW swell.
The current surf forecast for Hells Mouth (Porth Neigwl) at 8AM is: 1.0m 5s primary swell from a Southwest direction and 0.2m 8s secondary swell from a West-southwest direction (forecast issued at 12:00am September 10). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Sep) | 3.5ft (1.1m) | 5s |
| Afternoon (10 Sep) | 6.5ft (2.0m) | 6s |
| Evening (10 Sep) | 5ft (1.6m) | 7s |
Table - waves today at Hells Mouth (Porth Neigwl). (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Thu afternoon. Very mild (max 18°C on Thu night, min 13°C on Fri morning). Winds decreasing (strong winds from the SSW on Thu morning, calm by Fri afternoon). | ||||||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SW 8 | SW 4 | SW 4 | SW 5 | SW 6 | SW 7 | SW 7 | SW 7 | WSW 7 | WSW 7 | SW 8 | SW 8 | SW 7 | WSW 8 | SW 8 | SW 8 | SW 4 | SW 5 | SW 6 | SW 6 | SW 7 | SW 7 | SW 7 | SW 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 15 | 15 | 29 | 67 | 177 | 410 | 327 | 229 | 185 | 117 | 91 | 57 | 41 | 44 | 32 | 40 | 29 | 92 | 175 | 325 | 410 | 347 | 279 | 214 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross | cross | cross | cross | glassy | cross-on | on | cross-on | on | on | on | on | on | on | cross-on |
High Tide | 8:12AM4.10m | 8:30PM4.65m | 8:54AM4.33m | 9:11PM4.83m | 9:33AM4.45m | 9:50PM4.85m | ||||||||||||||||||
Low Tide | 3:11AM0.08m | 3:23PM0.27m | 3:51AM-0.09m | 4:02PM0.14m | 4:29AM-0.11m | 4:37PM0.12m | ||||||||||||||||||
 | |  | |  | | |  | |  |  |  | | | |  | | | | | | | | | |
 | — | 6:41 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:46 | — | — | — | — | — | — | — | 7:44 | — | — | — | — | — | — | — | 7:42 | — |
mm | — | — | — | — | 1 | 2 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | 1 |
Temp °C | 15 | 14 | 15 | 16 | 16 | 16 | 17 | 18 | 16 | 16 | 15 | 14 | 13 | 14 | 14 | 14 | 14 | 15 | 16 | 16 | 16 | 18 | 18 | 17 |
Feels °C | 10 | 8 | 10 | 9 | 8 | 10 | 12 | 14 | 12 | 14 | 12 | 10 | 11 | 13 | 11 | 10 | 9 | 9 | 9 | 9 | 11 | 13 | 14 | 16 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | WSW 8 | SW 8 | — | — | — | — | — | WSW 7 | SW 8 | SW 8 | SW 7 | WSW 8 | SW 8 | NNW 4 | — | WSW 8 | — | — | — | — | — | — |
| kJ | 15 | 9 | 6 | 2 | — | — | — | — | — | 117 | 91 | 57 | 41 | 44 | 32 | 1 | — | 6 | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | NNW 4 | — | — | — | — | — | — | — | — | — | — | — | — | NW 4 | NW 4 | — | NW 4 | — | — | — | — | — | — | — |
| kJ | 2 | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 2 | — | 1 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | NW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 3 | SW 4 | SW 4 | SW 5 | SW 6 | SW 7 | SW 7 | SW 7 | WSW 7 | NW 4 | NW 4 | NW 4 | NW 4 | — | — | SW 8 | SW 4 | SW 5 | SW 6 | SW 6 | SW 7 | SW 7 | SW 7 | SW 7 |
| kJ | 2 | 15 | 29 | 67 | 177 | 410 | 327 | 229 | 185 | 2 | 7 | 9 | 7 | — | — | 40 | 29 | 92 | 175 | 325 | 410 | 347 | 279 | 214 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 145 | 247 | 228 | 319 | 323 | 98 | 98 | 5 | 238 | 128 | 28 | 128 | 5 | 0 | 107 | 239 | 231 | 248 | 297 | 269 | 369 | 369 | 255 | 5 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
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