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Surf Forecasts:

Llanddwyn Island surfForecast / Wales – Anglesy / UK

information circle12 Day Weather and Surf, issued 11 am Sunday 08 Feb 2026 GMT
Forecast 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
7.4° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Llanddwyn Island this week:

The surf forecast for Llanddwyn Island over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Feb 10) at 3AM. The primary swell is predicted to be 0.6m and 8s period with a secondary swell of 0.2m and 21s. Another secondary swell of 0.4m and 4s 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 12 days are 2.1m 14s and forecast to arrive on Wednesday (Feb 11) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 4s period and expected on Friday (Feb 13) at 12PM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Tue 10th Feb)2ft (0.6m) 8s
Best Surf 3AM (Tue 10th Feb)2ft (0.6m) 8s
Most Powerful12PM (Wed 11th Feb)7ft (2.1m) 14s

Table - best surf conditions forecast for Llanddwyn Island over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 11mm), heaviest on Tue night. Mild temperatures (max 9°C on Sun morning, min 8°C on Sun morning). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 15mm), heaviest on Fri morning. Very mild (max 10°C on Wed morning, min 3°C on Fri morning). Winds increasing (light winds from the WSW on Wed night, strong winds from the N by Fri morning).

Sunday
08
Monday
09
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
1
1
0
0
0
1
0
0
0
1
0
0
1
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.6
SW
0.5
SW
1
S
0.3
WSW
0.4
SW
0.7
SW
0.8
SW
0.7
SW
0.8
SW
1.3
SW
2.1
SW
1.5
WSW
1.1
SW
1.7
WSW
1.3
WSW
0.9
SW
0.6
WSW
1.2
NW
0.4
SW
0.4
WSW
2
S
Period(s) (?)1010513129101091014141716151312611146
Wave
Graph
(?)Metric surfscale
Energy kJ (?)82484935367313411711934816178576551373740249941062982294
Wind
(km/h)
15
SSE
15
S
20
SSE
15
SE
20
ESE
15
ESE
10
SSE
15
SSE
15
S
30
SW
20
SW
10
WSW
30
WSW
30
SW
20
WSW
15
WNW
40
N
30
NNW
15
N
10
NNW
10
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
on		crosscross-
off		cross-
off		cross-
on		crosscross-
on		onononcross-
on		oncross-
on		crosscross-
off		cross-
off		cross-
off		cross-
off		cross
High Tide
/ height (m)
1:21PM
3.49
1:47AM
3.14
2:12PM
3.15
2:45AM
2.91
3:21PM
2.86
4:07AM
2.77
4:55PM
2.74
5:40AM
2.80
6:21PM
2.81
6:52AM
3.00
7:22PM
3.00
7:43AM
3.27
8:06PM
3.21
Low Tide
/ height (m)
8:06PM
1.01
8:19AM
1.22
8:51PM
1.34
9:16AM
1.48
9:58PM
1.58
10:49AM
1.63
11:40PM
1.63
12:31PM
1.52
1:00AM
1.44
1:34PM
1.26
1:50AM
1.17
2:17PM
0.95
2:28AM
0.88
Sunday
08
Monday
09
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunrise7:50--7:48--7:46--7:43--7:41--7:39--7:37--
Sunset-5:14--5:15--5:17--5:20--5:22--5:23--5:24-
cloud
light rain
light rain
cloud
cloud
light rain
cloud
light rain
rain showers
rain showers
rain showers
light rain
cloud
light rain
light rain
light rain
light rain
rain showers
clear
clear
light rain
Rain (mm)
-23--1-14111-11451--1
Temp. °C9999999991099999544663
Feels °C (?)5544456574462341-5-401-1
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

View detailed surf forecast for Llanddwyn Island at:
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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 12 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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