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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 Sunday 05 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 1AM is: 0.9m 6s primary swell from a Southwest direction and 0.4m 10s secondary swell from a Southwest direction, 0.3m 4s secondary swell from a Northwest direction (forecast issued at 06:00pm April 05). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (06 Apr) | 3ft (0.9m) | 5s |
| Afternoon (06 Apr) | 3.5ft (1.0m) | 6s |
| Evening (06 Apr) | 3ft (0.9m) | 7s |
Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 05 | Monday 06 | Tuesday 07 | Wednesday 08 | |||||||||||||||||||||
| 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) (?) | 6 | 11 | 10 | 6 | 7 | 10 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 19 | 17 | 16 | 8 | 8 | 8 | 8 | 11 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 160 | 397 | 265 | 70 | 63 | 115 | 37 | 70 | 78 | 81 | 62 | 72 | 80 | 93 | 119 | 107 | 50 | 23 | 23 | 28 | 55 | 35 | 34 | 33 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | glass | glass | glass | cross- on | cross- off | glass | cross | cross- on | on |
High Tide / height (m) | 12:10AM 3.81 | 12:31PM 3.67 | 12:44AM 3.59 | 1:07PM 3.37 | 1:20AM 3.33 | |||||||||||||||||||
Low Tide / height (m) | 6:42PM 0.51 | 6:58AM 0.53 | 7:14PM 0.79 | 7:33AM 0.79 | 7:49PM 1.07 | 8:14AM 1.07 | ||||||||||||||||||
Sunday 05 | Monday 06 | Tuesday 07 | Wednesday 08 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:35 | - | - |
| Sunset | - | 7:58 | - | - | - | - | - | - | - | 8:00 | - | - | - | - | - | - | - | 8:01 | - | - | - | - | - | - |
 | |  |  | |  | | | | | | | |  | | | | |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 8 | 9 | 8 | 8 | 7 | 7 | 8 | 10 | 12 | 12 | 11 | 11 | 12 | 12 | 14 | 16 | 18 | 17 | 15 | 15 | 16 | 15 | 15 | 13 |
| Feels °C (?) | 1 | 3 | 4 | 4 | 3 | 2 | 2 | 3 | 7 | 9 | 8 | 8 | 9 | 9 | 11 | 14 | 17 | 17 | 13 | 12 | 14 | 13 | 12 | 10 |
- 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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