- Forecast
- Maps
- Live
- Weather State
- Spot Information
Llanddwyn Island Surf Forecast
/ Wales – Anglesy (10 surf breaks) /
Surf Forecasts:
Llanddwyn Island surfForecast / Wales – Anglesy / UK
48hr Weather and Surf, issued 6 pm Tuesday 21 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
10.1° C
(Which is 1.3°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 13s primary swell from a West direction and 0.1m 9s secondary swell from a West direction (forecast issued at 06:00pm April 21). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Apr) | - | - |
| Afternoon (21 Apr) | 0.5ft (0.1m) | 13s |
| Evening (21 Apr) | 0.5ft (0.1m) | 13s |
Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||||||||
| 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) (?) | 18 | 13 | 13 | 13 | 4 | 9 | 8 | 3 | 16 | 4 | 12 | 4 | 4 | 4 | 11 | 12 | 11 | 10 | 10 | 10 | 10 | 10 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 6 | 3 | 3 | 3 | 1 | 1 | 1 | 0 | 5 | 0 | 3 | 0 | 0 | 2 | 2 | 13 | 30 | 52 | 60 | 60 | 59 | 59 | 90 | 103 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | glass | cross- off | cross- off | cross- off | cross- off | glass | glass | cross- on |
High Tide / height (m) | 12:56AM 3.92 | 1:31PM 3.60 | 1:52AM 3.65 | 2:41PM 3.23 | 3:06AM 3.40 | |||||||||||||||||||
Low Tide / height (m) | 7:37PM 0.47 | 8:07AM 0.36 | 8:32PM 0.80 | 9:09AM 0.63 | 9:36PM 1.08 | 10:24AM 0.82 | ||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:03 | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:00 | - | - |
| Sunset | - | 8:27 | - | - | - | - | - | - | - | 8:29 | - | - | - | - | - | - | - | 8:30 | - | - | - | - | - | - |
 |  |  | | | |  | | | |  |  | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 11 | 8 | 7 | 6 | 6 | 8 | 12 | 15 | 14 | 11 | 9 | 9 | 10 | 11 | 15 | 16 | 16 | 15 | 13 | 12 | 12 | 13 | 15 |
| Feels °C (?) | 6 | 4 | 1 | 0 | -1 | 0 | 1 | 5 | 9 | 10 | 7 | 5 | 5 | 6 | 8 | 13 | 15 | 14 | 13 | 11 | 10 | 10 | 12 | 13 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Llanddwyn Island surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest