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Surf Forecasts:
Llanddwyn Island surfForecast / Wales – Anglesy / UK
48hr Weather and Surf, issued 5 pm Friday 26 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Llanddwyn Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Llanddwyn Island sea temperature is
9.9° C
(Which is normal for this time of year)How big are the waves at Llanddwyn Island today?
The current surf forecast for Llanddwyn Island at 9PM is: 0.1m 13s primary swell from a West direction (forecast issued at 05:00pm December 26). The wind direction is predicted to be offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (26 Dec) | - | - |
| Afternoon (26 Dec) | - | - |
| Evening (26 Dec) | 0.5ft (0.1m) | 13s |
Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | |||||||||||||||||||||
| 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | — | — | ||||||||||||||||||||||
| Period(s) (?) | - | - | 13 | 12 | 2 | 12 | 11 | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 17 | 16 | 16 | 15 | 15 | 15 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 0 | 0 | 3 | 3 | 0 | 3 | 2 | 5 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 3 | 6 | 5 | 5 | 4 | 4 | 4 | 4 | 4 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross- off | off | off | off | off | off |
High Tide / height (m) | 12:56PM 3.66 | 1:31AM 3.16 | 1:48PM 3.55 | 2:33AM 3.11 | 2:50PM 3.46 | 3:43AM 3.12 | ||||||||||||||||||
Low Tide / height (m) | 8:08PM 0.74 | 8:17AM 1.09 | 9:00PM 0.82 | 9:15AM 1.20 | 10:01PM 0.87 | 10:25AM 1.22 | ||||||||||||||||||
Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 8:30 | - | - | - | - | - | - | - | 8:30 | - | - | - | - | - | - | - | 8:30 | - |
| Sunset | 4:04 | - | - | - | - | - | - | - | 4:05 | - | - | - | - | - | - | - | 4:06 | - | - | - | - | - | - | - |
 |  | | | | | | | | |  | | | |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 5 | 4 | 4 | 4 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Feels °C (?) | -2 | -1 | -1 | -3 | -1 | -2 | -2 | 0 | -2 | -2 | -1 | 1 | -1 | -1 | -1 | 0 | -1 | -1 | -1 | 0 | -1 | -1 | -1 | -1 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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