Surf Forecasts:
How big are the waves at Hells Mouth (Porth Neigwl) today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 1.5ft (0.4m), 4s period with SSW swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 0.5ft (0.2m), 6s period with WSW swell.
- Evening surf: Evening surf (21 Sep, local time) - 0.5ft (0.1m), 13s period with W swell.
The current surf forecast for Hells Mouth (Porth Neigwl) at 8PM is: 0.2m 6s primary swell from a West-southwest direction and 0.1m 13s secondary swell from a West direction, 0.3m 3s secondary swell from a Southwest direction (forecast issued at 12:00pm September 21). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 1.5ft (0.4m) | 4s |
| Afternoon (21 Sep) | 0.5ft (0.2m) | 6s |
| Evening (21 Sep) | 0.5ft (0.1m) | 13s |
Table - waves today at Hells Mouth (Porth Neigwl). (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Tue night. Very mild (max 19°C on Tue night, min 12°C on Wed night). Mainly fresh winds. | |||||||||||||||||||||
Mon 21 | Tuesday 22 | Wednesday 23 | |||||||||||||||||||
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 4 | SW 4 | W 13 | W 13 | WSW 6 | SW 3 | SW 4 | SW 4 | SW 4 | SW 4 | W 12 | W 12 | W 18 | SW 17 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | W 13 | W 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 6 | 4 | 3 | 3 | 3 | 2 | 4 | 5 | 4 | 3 | 3 | 3 | 6 | 11 | 10 | 9 | 8 | 8 | 7 | 3 | 3 |
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 | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 5:48PM2.90m | 6:23AM2.86m | 6:40PM3.23m | 7:03AM3.17m | 7:16PM3.59m | ||||||||||||||||
Low Tide | 11:57AM1.65m | 00:48AM1.40m | 1:03PM1.37m | 1:38AM1.08m | 1:48PM1.06m | ||||||||||||||||
 | | |  |  | | | | | | | |  | |  |  |  |  | | |  | |
 | 7:01 | — | — | — | — | — | — | 7:03 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — |
 | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:17 | — | — | — | — | — | — | — | 7:15 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — |
Temp °C | 15 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 19 | 14 | 13 | 13 | 13 | 13 | 13 |
Feels °C | 13 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 16 | 16 | 17 | 17 | 11 | 8 | 7 | 7 | 8 | 11 |
Swell 1 Height (m) Direction Period (s) | WSW 6 | WSW 6 | SW 4 | WSW 6 | WSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 4 | WSW 3 | WSW 3 | WSW 3 | WSW 3 | SW 16 | WSW 3 | SW 14 | SW 14 | SW 8 | SW 7 | NNW 4 |
| kJ | 3 | 3 | 2 | 3 | 3 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 10 | 4 | 8 | 8 | 2 | 2 | 6 |
Swell 2 Height (m) Direction Period (s) | W 13 | W 13 | WSW 6 | W 13 | — | — | — | — | — | SW 6 | SW 6 | SW 6 | SW 6 | SW 17 | SW 6 | SW 15 | SW 8 | SW 8 | SW 13 | W 13 | SW 7 |
| kJ | 3 | 3 | 3 | 3 | — | — | — | — | — | 1 | 1 | 1 | 1 | 11 | 1 | 9 | 3 | 3 | 7 | 3 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | W 13 | — | — | — | — | — | W 13 | W 12 | W 12 | W 12 | W 18 | SW 6 | W 12 | SW 6 | W 11 | W 11 | — | — | W 12 |
| kJ | — | — | 3 | — | — | — | — | — | 3 | 3 | 3 | 3 | 6 | 1 | 3 | 1 | 2 | 2 | — | — | 3 |
Wind waves Height (m) Direction Period (s) | SW 4 | SW 4 | — | SW 3 | SW 3 | SW 3 | SW 4 | SW 4 | SW 4 | — | — | — | — | — | SW 3 | NW 3 | NNW 4 | NNW 5 | NNW 4 | NNW 4 | — |
| kJ | 6 | 4 | — | 2 | 1 | 2 | 4 | 5 | 4 | — | — | — | — | — | 2 | 2 | 34 | 25 | 25 | 18 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 231 | 255 | 294 | 294 | 216 | 216 | 216 | 216 | 134 | 184 | 141 | 128 | 114 | 128 | 128 | 128 | 141 | 142 | 141 | 130 | 128 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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