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Surf Forecasts:

Llanddwyn Island surfForecast / Wales – Anglesy / UK

information circle48hr Weather and Surf, issued 11 am Thursday 15 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
7.8° C
 (Which is slightly cooler than normal)

How big are the waves at Llanddwyn Island today?

The current surf forecast for Llanddwyn Island at 6PM is: 0.8m 9s primary swell from a Southwest direction and 0.3m 18s secondary swell from a West-southwest direction (forecast issued at 11:00am January 15). The wind direction is predicted to be glassy.

Time (GMT) & DateWave HeightWave Period
Morning (15 Jan)4ft (1.2m)8s
Afternoon (15 Jan)3ft (0.9m)9s
Evening (15 Jan)2.5ft (0.7m)8s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Thursday
15
Friday
16
Saturday
17
Sunday
18
9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM
Rating
(10 max)
0
0
0
1
0
0
0
0
0
0
0
0
0
2
1
1
1
0
1
1
1
0
1
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.2
SW
1
SW
0.9
SW
0.8
SW
0.7
SW
0.6
SW
0.6
SW
0.5
SW
0.9
SSW
1.2
SSW
1.6
SSW
1.3
SW
1.2
SW
1.2
SW
1.1
SW
0.9
SW
0.9
SW
1
SSW
0.9
SSW
0.8
SSW
0.7
SSW
0.7
SSW
0.7
SW
0.7
SSW
Period(s) (?)889988885568888888888777
Wave
Graph
(?)Metric surfscale
Energy kJ (?)19213612993714342333570210200173182151112981251037352474738
Wind
(km/h)
15
SSW
15
SSE
5
S
5
S
10
S
15
S
15
SSE
20
SSE
20
SSE
30
SSE
30
SSE
20
SSE
20
SE
15
ESE
10
ESE
15
ESE
10
ESE
10
SE
10
ESE
10
ESE
10
ESE
10
SE
10
ESE
10
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on		cross-
on		glasscross-
on		cross-
on		crosscross-
on		cross-
on		cross-
on		cross-
on		crosscrosscross-
off		cross-
off		cross-
off		cross-
off		crosscross-
off		cross-
off		cross-
off		crosscross-
off		cross
High Tide
/ height (m)
7:07AM
3.17
7:32PM
3.16
7:54AM
3.36
8:17PM
3.31
8:34AM
3.57
8:55PM
3.44
Low Tide
/ height (m)
1:54PM
1.10
2:11AM
1.03
2:37PM
0.87
2:50AM
0.82
3:15PM
0.65
3:26AM
0.63
Thursday
15
Friday
16
Saturday
17
Sunday
18
Sunrise8:23-------8:22-------8:22-------
Sunset--4:29-------4:30-------4:32-----
clear
cloud
light rain
clear
clear
part cloud
cloud
cloud
clear
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
part cloud
cloud
part cloud
clear
cloud
Rain (mm)
--1---------------------
Temp. °C788766666888766668978778
Feels °C (?)356532210113222225635435
  • 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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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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