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Porth Dinllaen Surf Forecast
/ Wales – Lleyn (14 surf breaks) /
Surf Forecasts:
Porth Dinllaen surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 12 pm Saturday 18 Apr 2026 BSTForecast update in hr min s Forecast update imminent
Porth Dinllaen surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porth Dinllaen sea temperature is
9.8° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Porth Dinllaen today?
The current surf forecast for Porth Dinllaen at 3PM is: 0.6m 6s primary swell from a Southwest direction and 0.4m 8s secondary swell from a Southwest direction, 0.6m 4s secondary swell from a West-northwest direction (forecast issued at 12:00pm April 18). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Apr) | 3.5ft (1.1m) | 5s |
| Afternoon (18 Apr) | 2ft (0.6m) | 6s |
| Evening (18 Apr) | 1.5ft (0.5m) | 6s |
Table - waves today at Porth Dinllaen. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||||||||
| 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 | 1 AM | 4 AM | 7 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 9 | 6 | 6 | 6 | 15 | 15 | 15 | 15 | 14 | 14 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 59 | 25 | 32 | 34 | 21 | 15 | 14 | 9 | 9 | 5 | 5 | 5 | 3 | 2 | 1 | 1 | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 3 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | on | cross- on | cross | cross | cross | cross | on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | off | glass | cross- on | off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 9:45AM 4.18 | 10:06PM 4.03 | 10:26AM 4.16 | 10:47PM 4.03 | 11:10AM 4.00 | 11:29PM 3.91 | ||||||||||||||||||
Low Tide / height (m) | 4:51PM -0.11 | 5:09AM -0.02 | 5:33PM 0.02 | 5:54AM 0.04 | 6:18PM 0.25 | 6:44AM 0.20 | ||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:11 | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:07 |
| Sunset | - | - | - | 8:22 | - | - | - | - | - | - | - | 8:23 | - | - | - | - | - | - | - | 8:24 | - | - | - | - |
 |  | | |  |  | |  | | | | | | | | | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 9 | 9 | 10 | 10 | 10 | 10 | 9 | 8 | 8 | 9 | 9 | 10 | 9 | 9 | 9 | 9 | 9 | 11 | 11 | 11 | 11 | 9 | 8 | 6 |
| Feels °C (?) | 4 | 4 | 6 | 7 | 7 | 8 | 6 | 5 | 5 | 5 | 5 | 5 | 4 | 5 | 5 | 5 | 6 | 8 | 7 | 7 | 7 | 3 | 3 | 0 |
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Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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