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Porth Nefyn Surf Forecast
/ Wales – Lleyn (14 surf breaks) /
Surf Forecasts:
Porth Nefyn surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 6 pm Thursday 23 Apr 2026 BSTForecast update in hr min s Forecast update imminent
Porth Nefyn surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porth Nefyn sea temperature is
10.6° C
(Which is 1.5°C warmer than normal for this time of year)How big are the waves at Porth Nefyn today?
The current surf forecast for Porth Nefyn at 11PM is: 0.5m 10s primary swell from a Southwest direction (forecast issued at 06:00pm April 23). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Apr) | - | - |
| Afternoon (23 Apr) | 1.5ft (0.4m) | 11s |
| Evening (23 Apr) | 1.5ft (0.5m) | 10s |
Table - waves today at Porth Nefyn. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 16°C on Thu afternoon, min 12°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 23 | Friday 24 | Saturday 25 | Sun 26 | |||||||||||||||||||||
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 | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 11 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 10 | SW 11 | SW 10 | WSW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | |
29 | 50 | 47 | 46 | 46 | 84 | 104 | 97 | 96 | 94 | 94 | 94 | 90 | 89 | 90 | 89 | 69 | 49 | 47 | 45 | 41 | 29 | 28 | 27 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | glassy | cross-on | cross-off | cross-off | cross-off | glassy | glassy | glassy | on | on | cross-on | glassy | glassy | off | off | cross-off | |
High Tide | 1:50PM2.95m | 2:17AM3.13m | 3:13PM2.66m | 3:45AM2.98m | 4:57PM2.61m | 5:17AM3.03m | ||||||||||||||||||
Low Tide | 9:09PM1.06m | 9:59AM0.81m | 10:25PM1.17m | 11:20AM0.80m | 11:45PM1.12m | 12:34PM0.66m | ||||||||||||||||||
 | |  | | | | | | | | |  |  |  | | |  | | | | | | | | |
 | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:56 | — | — | — |
 | — | 8:30 | — | — | — | — | — | — | — | 8:31 | — | — | — | — | — | — | — | 8:34 | — | — | — | — | — | 8:36 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 16 | 14 | 13 | 12 | 12 | 12 | 14 | 15 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 |
14 | 13 | 11 | 10 | 9 | 8 | 9 | 12 | 12 | 12 | 11 | 11 | 10 | 11 | 11 | 11 | 12 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 10 | SW 11 | SW 10 | WSW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 |
 kJ | 29 | 50 | 47 | 46 | 46 | 84 | 104 | 97 | 96 | 94 | 94 | 94 | 90 | 89 | 90 | 89 | 69 | 49 | 47 | 45 | 41 | 29 | 28 | 27 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | W 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | ESE 3 | SE 3 | — | — | — | ESE 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 1 | 2 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 14 | 14 | 31 | 31 | 31 | 14 | 14 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 14 | 13 | 14 | 121 | 121 | 121 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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