Surf Forecasts:
How big are the waves at Porth Nefyn today (31 Oct):
- Morning surf: Morning surf (31 Oct, local time) - 2ft (0.6m), 11s period with SW swell.
- Afternoon surf: Afternoon surf (31 Oct, local time) - 1.5ft (0.5m), 10s period with SW swell.
- Evening surf: Evening surf (31 Oct, local time) - 1.5ft (0.5m), 10s period with SW swell.
The current surf forecast for Porth Nefyn at 5AM is: 0.6m 11s primary swell from a Southwest direction and 0.4m 11s secondary swell from a Southwest direction (forecast issued at 11:00pm October 30). The wind direction is predicted to be offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Oct) | 2ft (0.6m) | 11s |
| Afternoon (31 Oct) | 1.5ft (0.5m) | 10s |
| Evening (31 Oct) | 1.5ft (0.5m) | 10s |
Table - waves today at Porth Nefyn. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 13°C on Fri night, min 9°C on Mon morning). Wind will be generally light. | |||||||||||||||||
Saturday 31 | Sunday 1 | ||||||||||||||||
9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||
Wave Height (m) Direction Period (s) | SW 8 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | NNW 6 | NNW 6 | SW 8 | WSW 8 |
Wave Graph  | |||||||||||||||||
 kJ | 55 | 44 | 33 | 96 | 94 | 72 | 54 | 49 | 47 | 47 | 33 | 20 | 20 | 24 | 25 | 10 | 6 |
Wind (km/h) | |||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | cross-off | glassy | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 11:18PM3.43m | 11:40AM3.52m | 00:16AM3.06m | 12:41PM3.25m | |||||||||||||
Low Tide | 6:11PM0.39m | 6:34AM0.76m | 7:13PM0.59m | 7:36AM0.98m | 8:23PM0.73m | ||||||||||||
 | |  | |  |  | |  | | | | | | | | | | |
 | — | — | — | 7:11 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — |
 | — | — | — | — | — | — | 4:50 | — | — | — | — | — | — | — | 4:47 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 10 | 11 | 11 | 10 | 12 |
Feels °C | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 12 | 12 | 12 | 10 | 6 | 5 | 6 | 6 | 6 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 7 | SW 7 | SW 11 | SW 11 | SW 11 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 8 | NNW 5 | NW 5 |
| kJ | 55 | 44 | 33 | 96 | 94 | 72 | 54 | 49 | 47 | 47 | 33 | 20 | 20 | 12 | 10 | 11 | 6 |
Swell 2 Height (m) Direction Period (s) | WSW 11 | SW 11 | SW 11 | — | — | — | — | — | — | — | — | — | — | — | — | SW 8 | WSW 8 |
| kJ | 24 | 30 | 30 | — | — | — | — | — | — | — | — | — | — | — | — | 10 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SSE 2 | — | — | — | — | — | NNW 3 | NNW 5 | NNW 6 | NNW 6 | — | — |
| kJ | — | — | — | — | — | 1 | — | — | — | — | — | 2 | 19 | 24 | 25 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||
Distance (km) | 30 | 30 | 30 | 30 | 46 | 87 | 13 | 13 | 13 | 13 | 14 | 141 | 141 | 141 | 141 | 141 | 148 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||
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