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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 6 pm Wednesday 08 Apr 2026 BSTForecast 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
9.2° C
(Which is 1.0°C warmer than normal for this time of year)How big are the waves at Llanddwyn Island today?
The current surf forecast for Llanddwyn Island at 2AM is: 0.4m 8s primary swell from a Southwest direction and 0.6m 3s secondary swell from a South-southwest direction (forecast issued at 06:00pm April 08). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Apr) | 4.5ft (1.3m) | 6s |
| Afternoon (09 Apr) | 4ft (1.2m) | 5s |
| Evening (09 Apr) | 4ft (1.2m) | 6s |
Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 08 | Thursday 09 | Friday 10 | Saturday 11 | |||||||||||||||||||||
| 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 8 | 8 | 8 | 4 | 5 | 6 | 6 | 5 | 5 | 6 | 6 | 6 | 5 | 6 | 4 | 5 | 6 | 7 | 8 | 8 | 8 | 8 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 33 | 24 | 17 | 16 | 19 | 61 | 108 | 84 | 67 | 94 | 81 | 75 | 43 | 19 | 19 | 29 | 69 | 154 | 317 | 639 | 542 | 256 | 162 | 159 |
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 | on | cross- on | cross- on | cross- on | cross | cross- on | cross | glass | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross | on | on | on |
High Tide / height (m) | 1:47PM 3.06 | 2:04AM 3.06 | 2:42PM 2.77 | 3:15AM 2.84 | 4:27PM 2.59 | 5:12AM 2.80 | ||||||||||||||||||
Low Tide / height (m) | 8:31PM 1.34 | 9:06AM 1.34 | 9:26PM 1.56 | 10:17AM 1.53 | 10:45PM 1.66 | 11:50AM 1.51 | ||||||||||||||||||
Wednesday 08 | Thursday 09 | Friday 10 | Saturday 11 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:33 | - | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:28 | - | - |
| Sunset | - | 8:04 | - | - | - | - | - | - | - | 8:05 | - | - | - | - | - | - | - | 8:07 | - | - | - | - | - | - |
 | |  |  | |  |  | | |  | | | | | | | | |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | 1 | - | 1 | - | - | - | - | - | - | - | - | 1 | 1 | 2 | 3 | 1 | - | - |
| Temp. °C | 14 | 12 | 11 | 10 | 8 | 8 | 9 | 7 | 8 | 8 | 7 | 6 | 6 | 6 | 6 | 7 | 8 | 6 | 7 | 8 | 4 | 3 | 6 | 6 |
| Feels °C (?) | 13 | 10 | 8 | 6 | 3 | 2 | 4 | -1 | 0 | 1 | 0 | 0 | 1 | 3 | 1 | 0 | 0 | -1 | -3 | -2 | 0 | 0 | 0 | -3 |
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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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