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Surf Forecasts:

Llanddwyn Island surfForecast / Wales – Anglesy / UK

information circle48hr Weather and Surf, issued 5 am Friday 16 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
7.5° C
 (Which is 1.0°C colder than average for this time of year)

How big are the waves at Llanddwyn Island today?

The current surf forecast for Llanddwyn Island at 8AM is: 1.0m 5s primary swell from a South-southwest direction and 0.4m 8s secondary swell from a Southwest direction, 0.2m 16s secondary swell from a West-southwest direction (forecast issued at 05:00am January 16). The wind direction is predicted to be cross-onshore.

Time (GMT) & DateWave HeightWave Period
Morning (16 Jan)3.5ft (1.0m)5s
Afternoon (16 Jan)3.5ft (1.1m)6s
Evening (16 Jan)3.5ft (1.1m)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
Friday
16
Saturday
17
Sunday
18
Mon
19
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
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.5
SW
0.9
SSW
1
SSW
1
SSW
1.1
SW
1.1
SW
1.1
SW
1
SW
1
SW
0.9
SW
1
SSW
0.9
SSW
0.9
SSW
0.8
SSW
0.7
SW
0.6
SW
0.6
SW
0.6
SW
0.5
SW
0.5
SW
0.5
SW
0.4
SW
0.4
SW
0.3
SW
Period(s) (?)855567888888887777766666
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3337475372137147125132109130112100805442413822201914117
Wind
(km/h)
20
SSE
20
SSW
25
SSE
30
SSE
30
SSE
20
SE
20
SE
15
SE
15
SE
10
ESE
10
ESE
5
ESE
5
ESE
10
ESE
10
ESE
10
ESE
10
ESE
10
ESE
10
ESE
5
SE
5
E
5
SE
5
S
5
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on		cross-
on		cross-
on		cross-
on		crosscrosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crossglasscrosscross-
on		cross
High Tide
/ height (m)
7:54AM
3.36
8:17PM
3.31
8:34AM
3.57
8:55PM
3.44
9:10AM
3.76
9:29PM
3.55
Low Tide
/ height (m)
2:37PM
0.87
2:50AM
0.82
3:15PM
0.65
3:26AM
0.63
3:52PM
0.45
Friday
16
Saturday
17
Sunday
18
Mon
19
Sunrise--8:22-------8:22-------8:21-----
Sunset----4:30-------4:32-------4:34---
light rain
rain showers
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
clear
part cloud
cloud
cloud
light rain
light rain
Rain (mm)
11--------------------11
Temp. °C677897666668977777788877
Feels °C (?)121122112235744344456655
  • 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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