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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 12 am Thursday 30 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
11.1° C
(Which is 1.7°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 8AM is: 0.1m 12s primary swell from a West direction (forecast issued at 12:00am April 30). An open ocean swell of 0.5m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 0.5ft (0.1m) | 11s |
| Afternoon (30 Apr) | 2.5ft (0.8m) | 4s |
| Evening (30 Apr) | 1.5ft (0.5m) | 4s |
Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 19°C on Thu afternoon, min 9°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 30 | Friday 1 | Saturday 2 | ||||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
W 12 | W 12 | W 12 | W 11 | SE 4 | SE 4 | SSE 4 | SSE 4 | SE 3 | W 11 | W 10 | W 10 | W 10 | W 10 | W 12 | SW 3 | SSW 3 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SW 5 | SW 5 | SW 6 | |
3 | 3 | 3 | 3 | 24 | 27 | 16 | 7 | 3 | 2 | 2 | 2 | 2 | 2 | 3 | 2 | 5 | 7 | 11 | 19 | 17 | 28 | 28 | 30 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | |
High Tide | 9:14AM3.92m | 9:36PM3.84m | 9:49AM3.96m | 10:07PM3.92m | 10:23AM3.94m | |||||||||||||||||||
Low Tide | 3:43AM0.44m | 4:04PM0.23m | 4:20AM0.34m | 4:38PM0.27m | 4:55AM0.31m | 5:12PM0.35m | ||||||||||||||||||
 | |  | | | |  | | |  | |  | | | |  | | | | | | | | | |
 | — | 5:47 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:43 | — | — | — | — | — | — | — | 8:45 | — | — | — | — | — | — | — | 8:46 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 10 | 10 | 10 | 15 | 18 | 19 | 18 | 15 | 13 | 14 | 14 | 14 | 12 | 13 | 13 | 11 | 10 | 10 | 9 | 11 | 13 | 13 | 12 | 11 |
4 | 5 | 5 | 11 | 12 | 14 | 15 | 13 | 10 | 11 | 11 | 11 | 9 | 11 | 10 | 8 | 7 | 7 | 5 | 6 | 8 | 8 | 8 | 9 | |
Swell 1 Height (m) Direction Period (s) | — | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | S 4 | S 3 | SW 4 | SW 4 | SW 4 | W 10 | W 12 | W 11 | W 11 | W 11 | W 10 | W 8 | SW 7 | SW 5 | SW 5 | SW 6 |
 kJ | — | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 3 | 2 | 2 | 2 | 2 | 1 | 2 | 28 | 28 | 30 |
Swell 2 Height (m) Direction Period (s) | W 12 | — | — | — | — | — | — | — | W 11 | — | W 10 | W 10 | W 10 | SW 4 | SW 4 | — | — | — | — | — | — | — | — | — |
| kJ | 3 | — | — | — | — | — | — | — | 2 | — | 2 | 2 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 3 | E 3 | ESE 4 | SE 4 | SE 4 | SE 4 | SSE 4 | SSE 4 | SE 3 | ESE 2 | SSE 3 | SSE 3 | S 3 | SSW 4 | SSW 4 | SW 3 | SSW 3 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | — | — | — |
| kJ | 3 | 4 | 11 | 9 | 24 | 27 | 16 | 7 | 3 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 5 | 7 | 11 | 19 | 17 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 269 | 269 | 270 | 272 | 272 | 295 | 110 | 211 | 211 | 232 | 222 | 222 | 172 | 267 | 267 | 267 | 261 | 254 | 172 | 172 | 174 | 281 | 297 | 269 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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