Surf Forecasts:
How big are the waves at Hells Mouth (Porth Neigwl) today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 5ft (1.6m), 6s period with W swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 5ft (1.6m), 6s period with W swell.
- Evening surf: Evening surf (17 Sep, local time) - 5ft (1.6m), 6s period with W swell.
The current surf forecast for Hells Mouth (Porth Neigwl) at 6AM is: 1.7m 7s primary swell from a West-southwest direction (forecast issued at 12:00am September 17). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 5ft (1.6m) | 6s |
| Afternoon (17 Sep) | 5ft (1.6m) | 6s |
| Evening (17 Sep) | 5ft (1.6m) | 6s |
Table - waves today at Hells Mouth (Porth Neigwl). (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Fri afternoon. Very mild (max 17°C on Fri afternoon, min 14°C on Wed night). Winds decreasing (near gales from the SW on Fri afternoon, moderate winds from the W by Sat afternoon). | ||||||||||||||||||||||||
Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||||||||||
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 6 | WSW 7 | WSW 7 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 5 | WSW 5 | SW 6 | SW 7 | SW 8 | SW 7 | SW 7 | SW 8 | SW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 229 | 311 | 268 | 164 | 152 | 160 | 139 | 158 | 144 | 117 | 92 | 69 | 224 | 593 | 657 | 569 | 569 | 657 | 721 | 644 | 329 | 207 | 169 | 143 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 00:18AM3.70m | 12:34PM3.53m | 00:57AM3.28m | 1:15PM3.17m | 1:45AM2.89m | 2:13PM2.85m | ||||||||||||||||||
Low Tide | 6:53AM1.13m | 7:13PM1.16m | 7:27AM1.41m | 8:05PM1.45m | 8:28AM1.66m | 9:31PM1.65m | ||||||||||||||||||
 |  |  | |  | | |  | |  | | |  |  | |  | | | |  | | | | | |
 | — | 6:54 | — | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:30 | — | — | — | — | — | — | — | 7:27 | — | — | — | — | — | — | — | 7:24 | — |
mm | 1 | 1 | — | — | — | — | — | — | — | — | — | — | 1 | 7 | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 14 | 14 | 15 | 15 | 16 | 15 | 14 | 14 | 14 | 15 | 15 | 15 | 17 | 16 | 16 | 16 | 17 | 17 | 16 | 17 | 17 | 16 |
Feels °C | 8 | 8 | 7 | 7 | 7 | 7 | 9 | 8 | 7 | 8 | 8 | 9 | 6 | 6 | 11 | 10 | 9 | 9 | 12 | 12 | 11 | 12 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NW 5 | NW 5 | — | — | — | — | — | — | — | W 16 | W 16 | W 15 | W 14 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 14 | 4 | — | — | — | — | — | — | — | 5 | 5 | 4 | 4 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 16 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 6 | WSW 7 | WSW 7 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 5 | WSW 5 | SW 6 | SW 7 | SW 8 | SW 7 | SW 7 | SW 8 | SW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 7 |
| kJ | 229 | 311 | 268 | 164 | 152 | 160 | 139 | 158 | 144 | 117 | 92 | 69 | 224 | 593 | 657 | 569 | 569 | 657 | 721 | 644 | 329 | 207 | 169 | 143 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 319 | 258 | 308 | 322 | 497 | 497 | 497 | 295 | 144 | 463 | 323 | 322 | 505 | 294 | 505 | 369 | 463 | 463 | 452 | 258 | 505 | 258 | 5 | 5 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
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