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Surf Forecasts:

Llanddwyn Island surfForecast / Wales – Anglesy / UK

information circle48hr Weather and Surf, issued 5 pm Tuesday 13 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 8PM is: 0.6m 10s primary swell from a Southwest direction and 0.5m 4s secondary swell from a Northwest direction (forecast issued at 05:00pm January 13). The wind direction is predicted to be cross-shore.

Time (GMT) & DateWave HeightWave Period
Morning (13 Jan)--
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
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
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
1
0
1
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.9
SW
0.8
SW
0.6
SW
0.6
SW
0.6
SW
0.6
SW
0.8
SW
1.1
SW
1.3
SSW
1.6
SSW
1.8
SSW
1.9
SW
1.6
SW
1.4
SW
1.1
SW
1
SW
0.9
SW
0.8
SW
0.3
WSW
0.6
SW
0.9
S
1.1
S
1.1
SSW
1
S
Period(s) (?)11101010101010456678888881884555
Wave
Graph
(?)Metric surfscale
Energy kJ (?)16312780796161117408515126537229122113512510284614228597451
Wind
(km/h)
20
NW
20
NW
10
NW
15
W
10
WSW
15
SW
20
S
30
S
35
S
35
S
40
S
20
SW
20
WSW
20
SW
15
SW
10
SSE
5
SE
5
ESE
10
SSE
20
S
20
SSE
25
SSE
25
S
25
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscross-
on		ononcross-
on		cross-
on		cross-
on		cross-
on		cross-
on		ononononcross-
on		crosscross-
off		cross-
on		cross-
on		crosscrosscross-
on		cross-
on
High Tide
/ height (m)
5:35PM
2.97
6:12AM
3.02
6:38PM
3.03
7:07AM
3.17
7:32PM
3.16
7:54AM
3.36
Low Tide
/ height (m)
12:28AM
1.34
1:02PM
1.32
1:26AM
1.21
1:54PM
1.10
2:11AM
1.03
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Sunrise------8:25-------8:23-------8:22-
Sunset4:25-------4:28-------4:29-------
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
light rain
light rain
rain showers
clear
rain showers
cloud
cloud
cloud
rain showers
clear
part cloud
cloud
light rain
light rain
part cloud
Rain (mm)
---------134-1---1---11-
Temp. °C766666667668777777666678
Feels °C (?)2022210-1-1-2-33223454210012
  • 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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