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Dinas Dinlle Surf Forecast
/ Wales – Lleyn (14 surf breaks) /
Surf Forecasts:
Dinas Dinlle surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 12 am Sunday 14 Sep 2025 BST
How big are the waves at Dinas Dinlle today?
The current surf forecast for Dinas Dinlle at 4AM is: 0.9m 7s primary swell from a Southwest direction and 0.6m 5s secondary swell from a West-northwest direction (forecast issued at 12:00am September 14). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Sep) | 3.5ft (1.0m) | 4s |
| Afternoon (14 Sep) | 5.5ft (1.7m) | 6s |
| Evening (14 Sep) | 8ft (2.5m) | 8s |
Table - waves today at Dinas Dinlle. (Swell directed towards the surf break)
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| 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 | 4 PM | 7 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 6 | 6 | 7 | 7 | 4 | 5 | 6 | 7 | 8 | 9 | 9 | 10 | 10 | 9 | 8 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 151 | 91 | 89 | 64 | 38 | 47 | 223 | 466 | 823 | 1120 | 1603 | 2402 | 3426 | 2091 | 1186 | 829 | 713 | 616 | 553 | 439 | 282 | 184 | 126 | 77 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross | cross | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | on | on | cross- on | cross- on |
High Tide / height (m) | 1:31AM 3.31 | 1:56PM 3.11 | 2:37AM 2.89 | 3:11PM 2.84 | 4:13AM 2.63 | 4:54PM 2.78 | ||||||||||||||||||
Low Tide / height (m) | 8:15PM 0.65 | 8:49AM 0.93 | 9:25PM 0.92 | 10:05AM 1.20 | 10:55PM 1.05 | 11:37AM 1.25 | ||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:48 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:50 | - | - | - | - |
| Sunset | - | - | - | - | - | - | - | 7:36 | - | - | - | - | - | - | - | 7:34 | - | - | - | - | - | - | - | 7:30 |
 | |  |  | |  | |  | | | | | | | | | |  | | |  | | | | |
Rain (mm) | 1 | 1 | - | - | - | 2 | 4 | 4 | 1 | 1 | 1 | - | - | 1 | 2 | 1 | 1 | - | - | - | - | - | - | - |
| Temp. °C | 13 | 12 | 12 | 12 | 14 | 12 | 15 | 16 | 15 | 14 | 13 | 13 | 14 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 14 | 15 | 14 |
| Feels °C (?) | 9 | 10 | 10 | 9 | 10 | 8 | 10 | 10 | 8 | 6 | 4 | 3 | 4 | 3 | 5 | 5 | 5 | 4 | 5 | 6 | 7 | 9 | 10 | 10 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Wales - Lleyn
Wind reports 1 km away suggest it is still onshore at Dinas Dinlle (moderate winds from the W at Caernarfon Airport). 0.8m 7s swell from the WSW with a 0.8m 5s windswell from the W and a 0.3m 7s swell from the WSW. 3 swells combining to make bigger set waves.
2 h 14 min ago
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