Surf Forecasts:
How big are the waves at Hells Mouth (Porth Neigwl) today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 3ft (0.9m), 5s period with NW swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 1.5ft (0.5m), 6s period with SW swell.
- Evening surf: Evening surf (20 Sep, local time) - 1.5ft (0.4m), 6s period with SW swell.
The current surf forecast for Hells Mouth (Porth Neigwl) at 11AM is: 0.8m 5s primary swell from a Northwest direction and 0.6m 6s secondary swell from a Southwest direction, 0.1m 14s secondary swell from a West direction (forecast issued at 06:00am September 20). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 3ft (0.9m) | 5s |
| Afternoon (20 Sep) | 1.5ft (0.5m) | 6s |
| Evening (20 Sep) | 1.5ft (0.4m) | 6s |
Table - waves today at Hells Mouth (Porth Neigwl). (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Tue night. Very mild (max 17°C on Mon afternoon, min 13°C on Sun morning). Wind will be generally light. | |||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||||||||
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) | W 5 | SW 6 | SW 6 | WSW 6 | NW 5 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | W 12 | W 12 | W 12 | W 18 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 80 | 56 | 38 | 25 | 19 | 19 | 14 | 13 | 6 | 5 | 7 | 10 | 8 | 5 | 5 | 6 | 4 | 3 | 3 | 3 | 3 | 3 | 6 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | 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 | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 4:04PM2.70m | 5:14AM2.61m | 5:48PM2.90m | 6:23AM2.86m | 6:40PM3.23m | ||||||||||||||||||
Low Tide | 10:10AM1.77m | 11:24PM1.64m | 11:57AM1.65m | 00:48AM1.40m | 1:03PM1.37m | ||||||||||||||||||
 |  | |  | | |  | |  | | | | | | | | | | | | | | | |
 | 6:58 | — | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — |
 | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:17 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 16 | 16 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 17 | 17 |
Feels °C | 8 | 8 | 8 | 10 | 11 | 11 | 10 | 9 | 9 | 10 | 11 | 15 | 15 | 17 | 16 | 16 | 15 | 15 | 15 | 15 | 16 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | W 14 | SW 6 | SW 6 | WSW 6 | NW 5 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | WSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | W 6 | SW 6 | SW 6 | SW 3 | WSW 3 | — | SW 6 |
| kJ | 4 | 56 | 38 | 25 | 14 | 19 | 14 | 13 | 6 | 5 | 3 | 2 | 2 | 1 | 2 | 2 | 1 | 1 | 1 | 2 | 1 | — | 1 |
Swell 2 Height (m) Direction Period (s) | — | W 14 | W 14 | W 14 | SW 6 | NW 4 | NW 4 | NNW 4 | NW 4 | — | W 13 | W 13 | W 13 | W 13 | — | — | — | — | — | SW 6 | SW 6 | SW 6 | — |
| kJ | — | 4 | 4 | 4 | 19 | 7 | 3 | 2 | 1 | — | 3 | 3 | 3 | 3 | — | — | — | — | — | 1 | 1 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 14 | W 14 | W 14 | — | W 14 | — | W 13 | — | — | W 13 | W 13 | — | W 13 | — | — | W 13 | W 12 | W 12 | W 12 | W 18 |
| kJ | — | — | — | 4 | 4 | 4 | — | 4 | — | 3 | — | — | 3 | 3 | — | 3 | — | — | 3 | 3 | 3 | 3 | 6 |
Wind waves Height (m) Direction Period (s) | W 5 | NW 5 | NW 5 | NW 5 | — | — | — | — | SW 3 | SSW 3 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | — | — | — | — |
| kJ | 80 | 40 | 35 | 24 | — | — | — | — | 2 | 4 | 7 | 10 | 8 | 5 | 5 | 6 | 4 | 3 | 3 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 128 | 141 | 137 | 141 | 141 | 114 | 128 | 128 | 128 | 136 | 189 | 242 | 294 | 216 | 250 | 250 | 134 | 216 | 134 | 201 | 141 | 128 | 107 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||||
Header Global | |||||||||||||||||||||||
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