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Llanddwyn Island Surf Forecast
/ Wales – Anglesy (10 surf breaks) /
Surf Forecasts:
Llanddwyn Island surfForecast / Wales – Anglesy / UK
48hr Weather and Surf, issued 11 am Tuesday 02 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
10.8° 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 7PM is: 0.7m 9s primary swell from a Southwest direction and 0.3m 16s secondary swell from a West-southwest direction, 0.9m 5s secondary swell from a Southwest direction (forecast issued at 11:00am December 02). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 Dec) | 5ft (1.5m) | 10s |
| Afternoon (02 Dec) | 4.5ft (1.3m) | 9s |
| Evening (02 Dec) | 3.5ft (1.1m) | 9s |
Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 02 | Wednesday 03 | Thursday 04 | Friday 05 | |||||||||||||||||||||
| 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 | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 5 | 5 | 5 | 5 | 6 | 7 | 8 | 8 | 8 | 5 | 5 | 8 | 9 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 424 | 365 | 307 | 86 | 183 | 65 | 132 | 149 | 54 | 66 | 53 | 80 | 129 | 352 | 558 | 432 | 306 | 90 | 74 | 142 | 61 | 100 | 78 | 45 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross |
High Tide / height (m) | 6:30AM 3.60 | 6:43PM 3.89 | 7:16AM 3.88 | 7:34PM 4.09 | 8:02AM 4.11 | 8:24PM 4.21 | ||||||||||||||||||
Low Tide / height (m) | 1:13PM 0.68 | 1:42AM 0.26 | 2:06PM 0.36 | 2:33AM 0.09 | 2:57PM 0.07 | 3:21AM 0.01 | ||||||||||||||||||
Tuesday 02 | Wednesday 03 | Thursday 04 | Friday 05 | |||||||||||||||||||||
| Sunrise | 8:08 | - | - | - | - | - | - | - | 8:10 | - | - | - | - | - | - | - | 8:11 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:04 | - | - | - | - | - | - | - | 4:02 | - | - | - | - | - | - | - | 4:01 | - | - | - | - | - |
 |  | |  | | |  | |  | |  |  | | |  | |  | | | |  | | | | |
Rain (mm) | - | 1 | 1 | 1 | 2 | 1 | - | - | 1 | - | - | - | 1 | 2 | 9 | 1 | 1 | 1 | 2 | 3 | 1 | - | - | - |
| Temp. °C | 9 | 10 | 10 | 9 | 8 | 8 | 8 | 8 | 8 | 10 | 10 | 9 | 9 | 9 | 7 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 |
| Feels °C (?) | 2 | 4 | 4 | 5 | 3 | 3 | 4 | 4 | 3 | 5 | 4 | 2 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 2 | -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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