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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 Sunday 30 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 9AM is: 1.0m 5s primary swell from a West-northwest direction and 0.4m 8s secondary swell from a Southwest direction (forecast issued at 05:00am November 30). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Nov) | 3.5ft (1.0m) | 5s |
| Afternoon (30 Nov) | 2ft (0.6m) | 4s |
| Evening (30 Nov) | 6ft (1.9m) | 6s |
Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 30 | Monday 01 | Tuesday 02 | Wed 03 | |||||||||||||||||||||
| 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) (?) | 6 | 5 | 5 | 8 | 4 | 4 | 6 | 7 | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 5 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 107 | 94 | 52 | 17 | 9 | 29 | 266 | 715 | 1261 | 1404 | 1681 | 1569 | 1627 | 1954 | 1186 | 755 | 624 | 466 | 356 | 303 | 281 | 263 | 96 | 136 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- on | on | on | on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross- on | on | on | on | on | on | on | cross- on | cross- on | on | on | on |
High Tide / height (m) | 4:44AM 3.06 | 4:51PM 3.44 | 5:41AM 3.32 | 5:49PM 3.66 | 6:30AM 3.60 | 6:43PM 3.89 | ||||||||||||||||||
Low Tide / height (m) | 11:11AM 1.23 | 11:52PM 0.72 | 12:15PM 1.00 | 12:49AM 0.48 | 1:13PM 0.68 | |||||||||||||||||||
Sunday 30 | Monday 01 | Tuesday 02 | Wed 03 | |||||||||||||||||||||
| Sunrise | - | - | 8:06 | - | - | - | - | - | - | - | 8:07 | - | - | - | - | - | - | - | 8:08 | - | - | - | - | - |
| Sunset | - | - | - | - | 4:05 | - | - | - | - | - | - | - | 4:04 | - | - | - | - | - | - | - | 4:04 | - | - | - |
 |  |  | |  |  |  | |  | |  |  | | | | | | |  |  | |  | | | |
Rain (mm) | - | - | - | - | - | - | 1 | 3 | 7 | 7 | 7 | 5 | 3 | 1 | - | - | - | - | - | 1 | 1 | 1 | - | 1 |
| Temp. °C | 8 | 7 | 7 | 8 | 8 | 9 | 9 | 10 | 11 | 13 | 13 | 13 | 13 | 11 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 9 |
| Feels °C (?) | 0 | 0 | 1 | 3 | 3 | 3 | 0 | 0 | 1 | 6 | 4 | 3 | 3 | 2 | 0 | 1 | 2 | 2 | 3 | 2 | 2 | 3 | 2 | 3 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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