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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 Saturday 29 Nov 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
11.0° 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 11AM is: 0.8m 8s primary swell from a Southwest direction and 0.2m 12s secondary swell from a West-southwest direction, 0.3m 4s secondary swell from a West-northwest direction (forecast issued at 05:00am November 29). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Nov) | 2.5ft (0.8m) | 8s |
| Afternoon (29 Nov) | 2.5ft (0.8m) | 8s |
| Evening (29 Nov) | 1.5ft (0.5m) | 9s |
Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 29 | Sunday 30 | Monday 01 | Tue 02 | |||||||||||||||||||||
| 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) (?) | 8 | 8 | 8 | 8 | 8 | 7 | 9 | 9 | 6 | 5 | 8 | 8 | 4 | 4 | 5 | 7 | 8 | 9 | 9 | 10 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 187 | 101 | 77 | 78 | 80 | 342 | 39 | 39 | 136 | 74 | 18 | 17 | 11 | 20 | 158 | 677 | 1057 | 1215 | 1718 | 2081 | 2037 | 932 | 520 | 284 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- off | cross |
High Tide / height (m) | 3:32AM 2.88 | 3:45PM 3.28 | 4:44AM 3.06 | 4:51PM 3.44 | 5:41AM 3.32 | 5:49PM 3.66 | ||||||||||||||||||
Low Tide / height (m) | 10:01AM 1.35 | 10:49PM 0.93 | 11:11AM 1.23 | 11:52PM 0.72 | 12:15PM 1.00 | |||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 01 | Tue 02 | |||||||||||||||||||||
| Sunrise | - | - | 8:03 | - | - | - | - | - | - | - | 8:06 | - | - | - | - | - | - | - | 8:07 | - | - | - | - | - |
| Sunset | - | - | - | - | 4:06 | - | - | - | - | - | - | - | 4:05 | - | - | - | - | - | - | - | 4:04 | - | - | - |
 |  |  |  | |  | |  | | |  |  | |  | | |  |  |  |  | | | | | |
Rain (mm) | 1 | - | 1 | 1 | 1 | 3 | 2 | - | - | - | - | - | - | - | 1 | 4 | 7 | 11 | 11 | 9 | 5 | 9 | 23 | 9 |
| Temp. °C | 9 | 8 | 8 | 8 | 7 | 5 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 10 | 12 | 13 | 13 | 13 | 12 | 9 | 8 |
| Feels °C (?) | 5 | 5 | 5 | 4 | 3 | -5 | -1 | 0 | -1 | 1 | 3 | 3 | 2 | 2 | -1 | -1 | -1 | 3 | 4 | 3 | 6 | 5 | 5 | 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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