Surf Forecasts:
How big are the waves at Hells Mouth (Porth Neigwl) today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 3.5ft (1.0m), 6s period with WSW swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 2ft (0.6m), 6s period with SW swell.
- Evening surf: Evening surf (18 Aug, local time) - 2.5ft (0.7m), 4s period with WSW swell.
The current surf forecast for Hells Mouth (Porth Neigwl) at 11AM is: 0.9m 6s primary swell from a West-southwest direction and 0.1m 16s secondary swell from a West direction (forecast issued at 06:00am August 18). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 3.5ft (1.0m) | 6s |
| Afternoon (18 Aug) | 2ft (0.6m) | 6s |
| Evening (18 Aug) | 2.5ft (0.7m) | 4s |
Table - waves today at Hells Mouth (Porth Neigwl). (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Wed night. Very mild (max 18°C on Tue afternoon, min 13°C on Thu night). Winds decreasing (fresh winds from the SW on Wed afternoon, calm by Thu night). | |||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||||
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) | WSW 5 | WSW 6 | WSW 6 | WSW 6 | SW 6 | SW 6 | WSW 4 | WSW 4 | WSW 4 | W 4 | WSW 4 | WSW 4 | WSW 4 | SW 5 | WSW 6 | WSW 6 | WSW 6 | WSW 7 | W 5 | WSW 6 | WSW 6 | SW 7 | SW 7 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 48 | 82 | 70 | 60 | 29 | 29 | 15 | 23 | 31 | 18 | 17 | 18 | 19 | 79 | 84 | 87 | 80 | 57 | 51 | 26 | 17 | 12 | 11 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 12:35PM3.75m | 00:56AM3.78m | 1:17PM3.43m | 1:41AM3.34m | 2:05PM3.11m | ||||||||||||||||||
Low Tide | 7:18AM0.70m | 7:22PM0.88m | 7:50AM1.04m | 7:58PM1.17m | 8:25AM1.34m | 8:46PM1.43m | |||||||||||||||||
 |  |  | | | |  | |  | | |  |  |  |  | | | | | | | | | |
 | 6:03 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — |
 | — | — | — | — | — | 8:38 | — | — | — | — | — | — | — | 8:37 | — | — | — | — | — | — | — | 8:35 | — |
mm | — | — | — | — | — | — | 1 | — | — | — | — | 1 | — | 1 | 1 | 1 | 1 | 2 | 2 | 2 | — | — | — |
Temp °C | 18 | 17 | 16 | 16 | 17 | 18 | 15 | 15 | 15 | 14 | 15 | 15 | 16 | 16 | 17 | 16 | 15 | 14 | 15 | 15 | 16 | 16 | 15 |
Feels °C | 16 | 14 | 13 | 13 | 15 | 15 | 11 | 11 | 10 | 10 | 11 | 11 | 11 | 11 | 14 | 13 | 12 | 10 | 11 | 10 | 11 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | — | — | W 16 | W 16 | NW 4 | NW 4 | W 17 | W 17 | W 17 | SW 6 | W 16 | W 16 | NW 4 | — | SW 16 | SW 6 | SW 15 | WSW 7 | SW 15 | WSW 6 | WSW 6 | SW 7 | SW 7 |
| kJ | — | — | 5 | 5 | 7 | 4 | 5 | 6 | 6 | 9 | 5 | 5 | 2 | — | 10 | 73 | 9 | 57 | 8 | 26 | 17 | 12 | 11 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | W 17 | W 16 | — | — | — | W 17 | W 16 | — | — | — | — | SW 16 | — | SW 15 | — | SW 14 | SW 14 | SW 14 | SW 14 |
| kJ | — | — | — | — | 5 | 5 | — | — | — | 6 | 5 | — | — | — | — | 10 | — | 9 | — | 8 | 8 | 8 | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 14 |
| kJ | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 |
Wind waves Height (m) Direction Period (s) | WSW 5 | WSW 6 | WSW 6 | WSW 6 | SW 6 | SW 6 | WSW 4 | WSW 4 | WSW 4 | W 4 | WSW 4 | WSW 4 | WSW 4 | SW 5 | WSW 6 | WSW 6 | WSW 6 | NW 4 | W 5 | NW 5 | NNW 6 | NNW 5 | NNW 4 |
| kJ | 48 | 82 | 70 | 60 | 29 | 29 | 15 | 23 | 31 | 18 | 17 | 18 | 19 | 79 | 84 | 87 | 80 | 14 | 51 | 58 | 151 | 42 | 18 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 138 | 128 | 5 | 369 | 369 | 369 | 298 | 141 | 141 | 141 | 141 | 298 | 294 | 299 | 286 | 5 | 123 | 128 | 128 | 128 | 128 | 141 | 128 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||||
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