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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 pm Thursday 19 Feb 2026 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
7.4° 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 10PM is: 0.6m 10s primary swell from a Southwest direction and 0.3m 3s secondary swell from a West-northwest direction (forecast issued at 05:00pm February 19). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Feb) | - | - |
| Afternoon (19 Feb) | 2.5ft (0.7m) | 13s |
| Evening (19 Feb) | 2ft (0.6m) | 10s |
Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | |||||||||||||||||||||
| 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 | 3 AM | 6 AM | 9 AM | 12 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 12 | 10 | 4 | 5 | 5 | 7 | 8 | 8 | 9 | 9 | 6 | 6 | 7 | 7 | 6 | 7 | 8 | 8 | 8 | 8 | 7 | 5 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 183 | 144 | 79 | 29 | 45 | 102 | 427 | 735 | 771 | 500 | 459 | 148 | 261 | 261 | 248 | 175 | 537 | 655 | 636 | 477 | 350 | 255 | 115 | 163 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- on | cross- on | on | cross- on | cross- on | on | cross- on | cross- on | on | on | on | on | on | on | on | on | on | on | on | on | on | on |
High Tide / height (m) | 10:39PM 3.98 | 10:51AM 4.41 | 11:13PM 3.98 | 11:27AM 4.33 | 11:49PM 3.89 | |||||||||||||||||||
Low Tide / height (m) | 5:13PM -0.12 | 5:22AM 0.12 | 5:49PM -0.06 | 5:59AM 0.21 | 6:27PM 0.11 | 6:40AM 0.39 | ||||||||||||||||||
Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 7:26 | - | - | - | - | - | - | - | 7:22 | - | - | - | - | - | - | - | 7:20 | - |
| Sunset | 5:35 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:38 | - | - | - | - | - | - | - |
 |  |  | | | |  | |  | | | | | |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | 4 | 4 | 3 | - | - | - | - | - | - | 1 | 3 | - | - | - | - | - | - | 1 |
| Temp. °C | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 10 | 10 | 10 | 9 | 9 | 10 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 10 |
| Feels °C (?) | 2 | 3 | 3 | 1 | 1 | -1 | 0 | 3 | 3 | 4 | 3 | 3 | 3 | 3 | 4 | 3 | 3 | 3 | 3 | 5 | 4 | 3 | 3 | 3 |
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