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Llanddwyn Island Surf Forecast
/ Wales – Anglesy (10 surf breaks) /
Surf Forecasts:
Llanddwyn Island surfForecast / Wales – Anglesy / UK
16 Day Weather and Surf, issued 12 pm Thursday 28 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
13.0° C
(Which is 1.6°C warmer than normal for this time of year)Llanddwyn Island surf forecast from 28 May 2026:
- Best quality surf: Monday 1 Jun, 7PM (local time) - 3.5ft (1.0m), 5s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 3 Jun, 4PM (local time) - 6ft (1.9m), 11s period, WSW swell with 784 kJ wave energy.
- Next surfable swell (1★+): Monday 1 Jun, 7PM (local time) - 3.5ft (1.0m), 5s period with SSW swell.
Best Forecast Surf Conditions for Llanddwyn Island this week:
The surf forecast for Llanddwyn Island over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jun 01) at 7PM. The primary swell is predicted to be 1.0m and 5s period with a secondary swell of 0.2m and 10s. Another secondary swell of 0.1m and 14s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Llanddwyn Island in the next 16 days are 1.9m 11s and forecast to arrive on Wednesday (Jun 03) at 4PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Mon 1st Jun) | 3.5ft (1.0m) 5s |
| Best Surf | 7PM (Mon 1st Jun) | 3.5ft (1.0m) 5s |
| Most Powerful | 4PM (Wed 3rd Jun) | 6ft (1.9m) 11s |
Table - best surf conditions forecast for Llanddwyn Island over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 20°C on Thu morning, min 12°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 11mm), heaviest on Mon night. Very mild (max 15°C on Sun afternoon, min 12°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 28 | Friday 29 | Saturday 30 | Sunday 31 | Monday 1 | Tuesday 2 | Wednesday 3 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
W 16 | W 16 | SSW 5 | SW 5 | SW 5 | SW 5 | SSW 4 | SW 4 | SW 4 | SW 12 | SW 12 | SW 5 | SW 6 | SSW 5 | SW 6 | SW 6 | SW 7 | SW 6 | SW 6 | WSW 11 | WSW 6 | |
5 | 5 | 39 | 28 | 22 | 37 | 12 | 8 | 28 | 35 | 34 | 35 | 34 | 35 | 102 | 47 | 123 | 85 | 253 | 784 | 137 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | on | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | on | cross-on | |
High Tide | 8:33PM3.55m | 8:47AM3.60m | 9:08PM3.66m | 9:25AM3.63m | 9:43PM3.74m | 10:03AM3.65m | 10:18PM3.78m | 10:40AM3.62m | 10:54PM3.79m | 11:17AM3.55m | 11:31PM3.75m | 11:54AM3.43m | 00:08AM3.67m | ||||||||
Low Tide | 2:58PM0.62m | 3:19AM0.69m | 3:37PM0.59m | 3:58AM0.59m | 4:14PM0.59m | 4:35AM0.52m | 4:50PM0.60m | 5:12AM0.49m | 5:25PM0.63m | 5:48AM0.50m | 6:00PM0.69m | 6:26AM0.57m | 6:37PM0.77m | ||||||||
 | |  |  | | | | | | | |  |  |  |  | | | |  | |  | |
 | 5:01 | — | — | 5:00 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 4:56 | — | — | 4:56 | — | — |
 | — | — | 9:28 | — | — | 9:29 | — | — | 9:30 | — | — | 9:31 | — | — | 9:32 | — | — | 9:34 | — | — | 9:35 |
— | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 9 | — | — | — | 4 | — | 7 | |
Temp °C | 20 | 17 | 14 | 15 | 15 | 13 | 15 | 14 | 13 | 14 | 15 | 13 | 15 | 15 | 14 | 13 | 14 | 14 | 14 | 14 | 12 |
19 | 15 | 9 | 12 | 12 | 10 | 11 | 10 | 10 | 10 | 11 | 10 | 11 | 12 | 13 | 11 | 11 | 13 | 10 | 8 | 6 | |
Swell 1 Height (m) Direction Period (s) | W 16 | W 16 | W 16 | SW 15 | SW 15 | SW 5 | WSW 9 | WSW 8 | WSW 12 | SW 12 | SW 12 | SW 5 | WSW 11 | WSW 11 | — | WNW 4 | — | SW 6 | — | — | — |
 kJ | 5 | 5 | 5 | 8 | 8 | 37 | 9 | 7 | 15 | 35 | 34 | 35 | 12 | 11 | — | 1 | — | 85 | — | — | — |
Swell 2 Height (m) Direction Period (s) | W 16 | — | — | — | W 12 | SW 11 | SW 16 | SW 14 | SW 8 | — | — | WSW 11 | — | SW 14 | — | SW 13 | — | W 13 | — | — | — |
| kJ | 5 | — | — | — | 3 | 5 | 10 | 8 | 2 | — | — | 25 | — | 8 | — | 7 | — | 3 | — | — | — |
Swell 3 Height (m) Direction Period (s) | W 6 | W 6 | — | — | — | SW 15 | SW 16 | SW 14 | — | — | — | — | SW 14 | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | — | — | — | 9 | 10 | 8 | — | — | — | — | 8 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 3 | SSW 3 | SSW 5 | SW 5 | SW 5 | — | SSW 4 | SW 4 | SW 4 | SW 5 | SW 5 | — | SW 6 | SSW 5 | SW 6 | SW 6 | SW 7 | SSE 4 | SW 6 | WSW 11 | WSW 6 |
| kJ | 2 | 4 | 39 | 28 | 22 | — | 12 | 8 | 28 | 29 | 25 | — | 34 | 35 | 102 | 47 | 123 | 11 | 253 | 784 | 137 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 391 | 573 | 286 | 334 | 291 | 162 | 191 | 291 | 95 | 35 | 327 | 78 | 269 | 216 | 269 | 164 | 38 | 269 | 295 | 267 | 296 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.
Information about the Llanddwyn Island Surf forecast
The above surf forecast table for Llanddwyn Island provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Llanddwyn Island can be found by selecting the local surf guide option on the grey menu. Our Llanddwyn Island surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Llanddwyn Island) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Llanddwyn Island may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a holiday in Anglesy? If you are looking for accommodation near Llanddwyn Island, camping, hotels and holiday cottages in Anglesy, consider staying in Anglesey which is 15 km (9 miles) away. Other places in and around Anglesy where you can find information about places to rent, and car hire include Holyhead which is 25 km (16 miles) away, Bangor, Porthmadog and Llandudno.
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