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Surf Forecasts:

Llanddwyn Island surfForecast / Wales – Anglesy / UK

information circle48hr Weather and Surf, issued 5 am Monday 19 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 9AM is: 0.6m 5s primary swell from a Southwest direction and 0.3m 3s secondary swell from a Southeast direction (forecast issued at 05:00am January 19). The wind direction is predicted to be cross-shore.

Time (GMT) & DateWave HeightWave Period
Morning (19 Jan)2ft (0.6m)5s
Afternoon (19 Jan)2.5ft (0.8m)6s
Evening (19 Jan)4.5ft (1.4m)6s

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
19
Tuesday
20
Wednesday
21
Thu
22
3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.7
SSW
0.7
SSW
0.6
SW
0.7
SW
0.8
SW
0.9
SSW
1.4
SSW
1.3
SSW
1
SSW
0.8
SW
0.7
SW
1.4
SE
1.4
SW
2.2
S
1.9
SSW
1.8
SW
1.6
SW
1.5
SW
1.1
SW
0.8
SW
0.6
SW
0.5
SW
1.1
SE
0.6
SW
Period(s) (?)445566665555966999998859
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1618192839691601055832299428128722151942135919910457334746
Wind
(km/h)
15
SSE
15
SSE
10
SE
15
SSE
15
SE
15
SE
25
S
20
SSW
20
SSE
15
ESE
30
SE
45
SE
45
SE
45
SE
25
SSE
35
SSE
25
SSE
15
ESE
15
E
20
ESE
30
E
30
ESE
25
ESE
20
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		crosscrosscrosscrosscrosscross-
on		cross-
on		cross-
on		cross-
off		crosscrosscrosscrosscrosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
9:43AM
3.93
10:01PM
3.63
10:13AM
4.06
10:31PM
3.67
10:44AM
4.14
11:03PM
3.68
Low Tide
/ height (m)
4:27PM
0.30
4:35AM
0.37
5:03PM
0.20
5:10AM
0.34
5:39PM
0.17
Monday
19
Tuesday
20
Wednesday
21
Thu
22
Sunrise--8:19-------8:18-------8:18-----
Sunset----4:36-------4:37-------4:39---
clear
part cloud
clear
clear
clear
cloud
light rain
cloud
clear
cloud
cloud
cloud
cloud
cloud
rain showers
cloud
part cloud
clear
clear
part cloud
cloud
light rain
light rain
rain showers
Rain (mm)
------1-------3------111
Temp. °C666898766468988775577899
Feels °C (?)222453100-1-2-2-1-22-11111-1144
  • 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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