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 (0.8m), 4s period with WSW swell.
The current surf forecast for Hells Mouth (Porth Neigwl) at 2AM is: 0.9m 5s primary swell from a West-southwest direction (forecast issued at 06:00pm August 17). 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 (0.8m) | 4s |
Table - waves today at Hells Mouth (Porth Neigwl). (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 13mm), heaviest on Wed afternoon. Very mild (max 18°C on Mon night, min 14°C on Wed night). Winds increasing (light winds from the SW on Mon afternoon, fresh winds from the SW by Wed afternoon). | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||||
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 5 | SW 4 | SW 5 | WSW 5 | WSW 5 | WSW 6 | WSW 6 | SW 6 | SW 6 | WSW 4 | WSW 4 | WSW 5 | WSW 5 | WSW 5 | WSW 5 | SW 6 | SW 6 | WSW 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 7 | 7 | 12 | 33 | 36 | 58 | 80 | 48 | 28 | 28 | 20 | 35 | 59 | 59 | 64 | 69 | 138 | 164 | 145 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | cross-on | cross-on | cross | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on |
High Tide | 00:15AM4.20m | 12:35PM3.75m | 00:56AM3.78m | 1:17PM3.43m | |||||||||||||||
Low Tide | 6:49PM0.61m | 7:18AM0.70m | 7:22PM0.88m | 7:50AM1.04m | 7:58PM1.17m | ||||||||||||||
 |  |  |  |  | | | | | | | | |  | | | |  | | |
 | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | 8:40 | — | — | — | — | — | — | — | 8:38 | — | — | — | — | — | — | — | 8:37 | — |
mm | — | — | 1 | 1 | — | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | 2 | 2 |
Temp °C | 16 | 17 | 16 | 18 | 18 | 17 | 16 | 16 | 17 | 18 | 16 | 15 | 15 | 15 | 15 | 16 | 16 | 17 | 17 |
Feels °C | 16 | 15 | 12 | 15 | 15 | 14 | 13 | 13 | 14 | 14 | 12 | 10 | 10 | 10 | 9 | 10 | 10 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 5 | — | — | — | — | — | W 16 | W 16 | NW 4 | NW 4 | W 17 | — | W 17 | W 17 | — | — | — | — | — |
| kJ | 7 | — | — | — | — | — | 5 | 5 | 6 | 3 | 6 | — | 6 | 6 | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | NW 3 | — | — | — | — | — | — | — | W 17 | W 16 | — | — | — | — | — | — | — | — | — |
| kJ | 2 | — | — | — | — | — | — | — | 5 | 5 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SW 5 | SW 4 | SW 5 | WSW 5 | WSW 5 | WSW 6 | WSW 6 | SW 6 | SW 6 | WSW 4 | WSW 4 | WSW 5 | WSW 5 | WSW 5 | WSW 5 | SW 6 | SW 6 | WSW 6 |
| kJ | — | 7 | 12 | 33 | 36 | 58 | 80 | 48 | 28 | 28 | 20 | 35 | 59 | 59 | 64 | 69 | 138 | 164 | 145 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 331 | 336 | 299 | 497 | 199 | 128 | 5 | 640 | 640 | 442 | 298 | 128 | 298 | 294 | 294 | 298 | 286 | 140 | 5 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
Header Global | |||||||||||||||||||
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