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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 Saturday 28 Mar 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
8.8° 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: 0.8m 4s primary swell from a West-northwest direction and 0.2m 5s secondary swell from a West-southwest direction, 0.1m 11s secondary swell from a West direction (forecast issued at 05:00pm March 28). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Mar) | 5ft (1.5m) | 5s |
| Afternoon (29 Mar) | 7ft (2.2m) | 7s |
| Evening (29 Mar) | 5ft (1.6m) | 7s |
Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 28 | Sunday 29 | Monday 30 | Tuesday 31 | |||||||||||||||||||||
| 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) (?) | 6 | 5 | 5 | 4 | 4 | 5 | 5 | 7 | 7 | 7 | 8 | 5 | 6 | 6 | 6 | 6 | 5 | 6 | 6 | 6 | 6 | 4 | 4 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 119 | 78 | 28 | 22 | 26 | 48 | 133 | 421 | 504 | 329 | 256 | 124 | 160 | 179 | 135 | 91 | 43 | 28 | 20 | 14 | 14 | 7 | 8 | 13 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- on | on | on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | on | on | cross- on | cross- on | cross- on |
High Tide / height (m) | 6:35PM 3.14 | 6:41AM 3.52 | 7:27PM 3.38 | 7:29AM 3.81 | 8:04PM 3.61 | 8:08AM 4.04 | ||||||||||||||||||
Low Tide / height (m) | 12:25PM 0.80 | 12:50AM 0.99 | 1:26PM 0.48 | 1:43AM 0.68 | 2:14PM 0.20 | 2:28AM 0.42 | ||||||||||||||||||
Saturday 28 | Sunday 29 | Monday 30 | Tuesday 31 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 5:58 | - | - | - | - | - | - | - | 5:56 | - | - | - | - | - | - | - | 5:54 | - | - |
| Sunset | - | 6:44 | - | - | - | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:47 | - | - | - | - | - | - |
 |  |  |  | |  | |  | | | | |  | | | | | | | | | | | | |
Rain (mm) | - | 1 | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 8 | 9 | 11 | 9 | 8 | 7 | 7 | 8 | 9 | 9 | 10 | 9 | 10 | 11 | 10 | 10 | 11 |
| Feels °C (?) | 0 | 1 | 3 | 2 | 2 | 0 | -2 | -2 | 1 | 6 | 2 | 1 | 0 | 0 | 1 | 2 | 3 | 5 | 5 | 7 | 9 | 8 | 7 | 8 |
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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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