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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 5 am Thursday 04 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
10.6° 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 7AM is: 1.5m 7s primary swell from a Southwest direction and 0.7m 5s secondary swell from a Southeast direction (forecast issued at 05:00am December 04). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Dec) | 6ft (1.8m) | 6s |
| Afternoon (04 Dec) | 3ft (0.9m) | 8s |
| Evening (04 Dec) | 2.5ft (0.7m) | 9s |
Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 04 | Friday 05 | Saturday 06 | Sun 07 | |||||||||||||||||||||
| 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 | 3 PM | 6 PM | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 6 | 8 | 8 | 8 | 9 | 16 | 8 | 8 | 4 | 6 | 7 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 8 | 7 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 151 | 237 | 222 | 91 | 91 | 60 | 79 | 47 | 35 | 80 | 35 | 200 | 657 | 1194 | 731 | 683 | 695 | 790 | 1079 | 1768 | 815 | 505 | 959 | 576 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | on | on | on | on | on | on | on | on | on | on |
High Tide / height (m) | 8:02AM 4.11 | 8:24PM 4.21 | 8:47AM 4.27 | 9:13PM 4.23 | 9:33AM 4.35 | 10:03PM 4.14 | ||||||||||||||||||
Low Tide / height (m) | 2:57PM 0.07 | 3:21AM 0.01 | 3:47PM -0.13 | 4:09AM 0.01 | 4:36PM -0.21 | |||||||||||||||||||
Thursday 04 | Friday 05 | Saturday 06 | Sun 07 | |||||||||||||||||||||
| Sunrise | - | - | 8:11 | - | - | - | - | - | - | - | 8:12 | - | - | - | - | - | - | - | 8:14 | - | - | - | - | - |
| Sunset | - | - | - | - | 4:01 | - | - | - | - | - | - | - | 4:01 | - | - | - | - | - | - | - | 4:00 | - | - | - |
 | |  | | |  | | |  |  |  | | | | | | | | |  | | | | | |
Rain (mm) | 1 | 3 | 1 | 1 | 1 | - | - | - | - | - | - | - | 1 | 5 | 2 | 3 | 1 | 1 | 2 | 1 | 1 | 1 | - | - |
| Temp. °C | 8 | 9 | 7 | 8 | 8 | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 8 | 9 | 10 | 10 | 11 | 11 | 11 | 11 | 10 | 11 | 11 | 10 |
| Feels °C (?) | 1 | 2 | -1 | 2 | 1 | 1 | 2 | 1 | 4 | 4 | 2 | 0 | -3 | -1 | 3 | 1 | 3 | 3 | 4 | 2 | 1 | 2 | 3 | 3 |
- 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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