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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 am Tuesday 07 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
9.1° 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 12PM is: 0.4m 17s primary swell from a West-southwest direction and 0.6m 8s secondary swell from a South-southwest direction (forecast issued at 06:00am April 07). An open ocean swell of 0.4m 4s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 Apr) | 1.5ft (0.4m) | 18s |
| Afternoon (07 Apr) | 1ft (0.3m) | 16s |
| Evening (07 Apr) | 1.5ft (0.4m) | 8s |
Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 07 | Wednesday 08 | Thursday 09 | Fri 10 | |||||||||||||||||||||
| 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 | 4 PM | 7 PM | 10 PM | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 19 | 17 | 16 | 8 | 8 | 8 | 11 | 11 | 11 | 10 | 10 | 10 | 8 | 8 | 8 | 4 | 5 | 6 | 5 | 5 | 5 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 76 | 92 | 119 | 105 | 50 | 23 | 21 | 23 | 56 | 71 | 50 | 47 | 33 | 25 | 23 | 16 | 17 | 71 | 92 | 75 | 60 | 23 | 31 | 26 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- on | glass | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross- on |
High Tide / height (m) | 1:07PM 3.37 | 1:20AM 3.33 | 1:47PM 3.06 | 2:04AM 3.06 | 2:42PM 2.77 | |||||||||||||||||||
Low Tide / height (m) | 7:33AM 0.79 | 7:49PM 1.07 | 8:14AM 1.07 | 8:31PM 1.34 | 9:06AM 1.34 | 9:26PM 1.56 | ||||||||||||||||||
Tuesday 07 | Wednesday 08 | Thursday 09 | Fri 10 | |||||||||||||||||||||
| Sunrise | - | 6:37 | - | - | - | - | - | - | - | 6:35 | - | - | - | - | - | - | - | 6:33 | - | - | - | - | - | - |
| Sunset | - | - | - | - | - | 8:01 | - | - | - | - | - | - | - | 8:04 | - | - | - | - | - | - | - | 8:05 | - | - |
 |  |  | | |  |  |  | | | | | | | | | | |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | - | - | - | - | - |
| Temp. °C | 13 | 13 | 15 | 18 | 17 | 17 | 15 | 13 | 12 | 11 | 13 | 14 | 14 | 13 | 11 | 9 | 9 | 8 | 8 | 8 | 9 | 8 | 8 | 7 |
| Feels °C (?) | 9 | 10 | 12 | 16 | 16 | 16 | 13 | 11 | 10 | 10 | 12 | 13 | 12 | 11 | 8 | 5 | 4 | 2 | 1 | 0 | 1 | 3 | 3 | 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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