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Surf Forecasts:

Llanddwyn Island surfForecast / Wales – Anglesy / UK

information circle48hr Weather and Surf, issued 5 pm Monday 12 Jan 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
7.9° C
 (Which is slightly cooler than normal)

How big are the waves at Llanddwyn Island today?

The current surf forecast for Llanddwyn Island at 1AM is: 1.8m 11s primary swell from a Southwest direction (forecast issued at 05:00pm January 12). The wind direction is predicted to be onshore.

Time (GMT) & DateWave HeightWave Period
Morning (13 Jan)4.5ft (1.4m)11s
Afternoon (13 Jan)3ft (0.9m)11s
Evening (13 Jan)2ft (0.6m)10s

Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.1
SW
2.1
SW
2.1
SW
1.8
SW
1.8
SW
1.5
SW
1.4
SW
1.1
SW
0.9
SW
0.8
SW
0.6
SW
0.6
SW
0.6
SW
0.6
SW
0.9
SW
1.1
SW
1.4
SSW
1.7
SSW
2.1
SSW
2.2
SW
1.8
SW
1.3
SW
1.2
SW
0.9
SW
Period(s) (?)1177111111111111101010101010456788888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1112410374792729515462254163127827961611423791197373530406227187112
Wind
(km/h)
35
SSW
35
SSW
35
SW
35
SW
25
SSW
25
SSW
20
WSW
25
NNW
20
NW
20
NW
15
WNW
15
W
10
W
15
SW
20
SSW
30
SSW
35
S
35
S
40
S
30
SW
20
SW
15
SW
15
SW
15
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononononcross-
on		cross-
on		oncross-
off		crosscrosscrosscross-
on		cross-
on		ononcross-
on		cross-
on		cross-
on		cross-
on		ononononon
High Tide
/ height (m)
4:24PM
3.03
5:09AM
2.93
5:35PM
2.97
6:12AM
3.02
6:38PM
3.03
7:07AM
3.17
Low Tide
/ height (m)
11:15PM
1.35
11:52AM
1.46
12:28AM
1.34
1:02PM
1.32
1:26AM
1.21
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Sunrise------8:26-------8:25-------8:23-
Sunset4:24-------4:25-------4:28-------
rain showers
rain showers
cloud
part cloud
cloud
light rain
light rain
light rain
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
light rain
rain showers
cloud
rain showers
clear
cloud
Rain (mm)
11---123----------11-1--
Temp. °C1010101099877666666776587778
Feels °C (?)3333343110112100-1-3-422334
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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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.

View detailed surf forecast for Llanddwyn Island at:
surf-forecast.com

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