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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 Thursday 14 May 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
11.6° C
(Which is 1.1°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 11PM is: 0.1m 14s primary swell from a West direction and 0.1m 7s secondary swell from a West direction (forecast issued at 06:00pm May 14). An open ocean swell of 1.2m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 May) | - | - |
| Afternoon (14 May) | 0.5ft (0.1m) | 15s |
| Evening (14 May) | 0.5ft (0.1m) | 14s |
Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 6mm), mostly falling on Sat afternoon. Very mild (max 10°C on Thu afternoon, min 7°C on Thu night). Winds decreasing (fresh winds from the N on Thu afternoon, calm by Fri night). | ||||||||||||||||||||||||
Thu 14 | Friday 15 | Saturday 16 | Sun 17 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 14 | SW 14 | SW 14 | W 14 | W 14 | W 14 | SW 14 | W 14 | W 14 | W 13 | NW 4 | W 13 | W 13 | W 13 | W 13 | SW 3 | SW 4 | SW 4 | WSW 4 | WSW 4 | SW 4 | SW 5 | SW 5 | SW 4 | |
8 | 8 | 8 | 4 | 4 | 4 | 8 | 4 | 4 | 4 | 5 | 3 | 3 | 3 | 3 | 5 | 11 | 15 | 11 | 11 | 7 | 7 | 10 | 8 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-on | glassy | glassy | on | cross-on | on | cross-on | cross-on | cross | cross-on | on | on | on | |
High Tide | 8:21PM3.75m | 8:32AM4.03m | 9:00PM4.00m | 9:16AM4.22m | 9:42PM4.19m | 10:02AM4.30m | ||||||||||||||||||
Low Tide | 2:43PM0.34m | 3:03AM0.52m | 3:29PM0.12m | 3:50AM0.23m | 4:14PM-0.01m | 4:37AM0.01m | ||||||||||||||||||
 | |  |  | |  |  |  | | | |  | | | | |  | | | | | | | | |
 | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:16 | — | — | — |
 | — | 9:07 | — | — | — | — | — | — | — | 9:08 | — | — | — | — | — | — | — | 9:09 | — | — | — | — | — | 9:12 |
1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — | — | — | — | |
Temp °C | 10 | 10 | 8 | 8 | 7 | 8 | 9 | 9 | 10 | 9 | 9 | 8 | 8 | 8 | 10 | 9 | 10 | 10 | 10 | 9 | 8 | 8 | 9 | 10 |
3 | 3 | 3 | 4 | 1 | 1 | 1 | 2 | 3 | 4 | 6 | 5 | 6 | 6 | 6 | 5 | 6 | 7 | 7 | 5 | 4 | 5 | 4 | 4 | |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | W 14 | W 14 | W 14 | SW 14 | W 14 | W 14 | W 13 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | — | — | — | W 13 | WSW 4 | — | SW 4 | SW 5 | NW 4 | WNW 4 |
 kJ | 8 | 8 | 8 | 4 | 4 | 4 | 8 | 4 | 4 | 4 | 6 | 3 | 3 | 2 | — | — | — | 3 | 11 | — | 7 | 7 | 2 | 1 |
Swell 2 Height (m) Direction Period (s) | — | SW 14 | W 7 | W 5 | W 7 | W 7 | — | — | — | W 6 | W 4 | WNW 3 | — | W 13 | W 13 | W 13 | W 13 | — | — | — | — | W 13 | W 12 | W 12 |
| kJ | — | 8 | 1 | 1 | 1 | 1 | — | — | — | 1 | 1 | 1 | — | 3 | 3 | 3 | 3 | — | — | — | — | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 14 | — | — | — | — | — | — | W 13 | W 13 | W 13 | W 5 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 4 | — | — | — | — | — | — | 3 | 3 | 3 | 1 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 6 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | NW 6 | NW 6 | NW 5 | NNW 4 | NW 4 | NW 4 | — | — | — | WSW 2 | SW 3 | SW 4 | SW 4 | NNW 3 | WSW 4 | NW 4 | NW 4 | SW 5 | SW 4 |
| kJ | 75 | 111 | 120 | 99 | 76 | 83 | 92 | 61 | 34 | 13 | 5 | — | — | — | 1 | 5 | 11 | 15 | 1 | 11 | 3 | 4 | 10 | 8 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1752 | 883 | 314 | 49 | 49 | 330 | 330 | 286 | 286 | 273 | 273 | 273 | 273 | 270 | 273 | 267 | 278 | 278 | 278 | 272 | 176 | 175 | 177 | 273 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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