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Surf Forecasts:

Llanddwyn Island surfForecast / Wales – Anglesy / UK

information circle48hr Weather and Surf, issued 5 am Friday 21 Nov 2025 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
12.1° C
 (Which is slightly warmer than usual)

How big are the waves at Llanddwyn Island today?

The current surf forecast for Llanddwyn Island at 10AM is: 0.2m 4s primary swell from a West-northwest direction and 0.1m 4s secondary swell from a Northwest direction (forecast issued at 05:00am November 21). The wind direction is predicted to be cross-onshore.

Time (GMT) & DateWave HeightWave Period
Morning (21 Nov)0.5ft (0.2m)4s
Afternoon (21 Nov)1.5ft (0.4m)3s
Evening (21 Nov)4.5ft (1.3m)5s

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
21
Saturday
22
Sunday
23
Mon
24
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
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.1
W
0.2
WNW
0.2
WNW
0.1
W
0.4
WSW
0.9
SW
1.3
SW
1.9
SW
2.1
SW
1.5
SW
1.1
SW
0.8
SW
0.7
SW
0.5
SW
0.6
SW
1.1
SSW
2
SW
2.2
WSW
2.3
WSW
3
WSW
3.5
WSW
2
WSW
1.9
NW
1.1
WSW
Period(s) (?)12441534567777777477789979
Wave
Graph
(?)Metric surfscale
Energy kJ (?)311432889244403200102554523365035242155712561704630362212
Wind
(km/h)
10
NNE
5
N
5
SSE
10
SSW
25
SW
30
SW
35
SSW
40
SSW
35
SSW
10
NW
10
NNW
15
WNW
10
SW
15
SSW
20
S
30
SSW
40
WSW
40
W
40
W
40
W
45
WSW
50
WSW
55
W
50
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		glassononononcross-
on		oncrosscross-
off		cross-
on		ononcross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		oncross-
on		cross-
on
High Tide
/ height (m)
9:30AM
3.86
9:49PM
3.71
10:02AM
3.82
10:23PM
3.59
10:36AM
3.74
10:56PM
3.44
Low Tide
/ height (m)
4:19PM
0.43
4:33AM
0.59
4:55PM
0.49
5:08AM
0.69
5:33PM
0.61
Friday
21
Saturday
22
Sunday
23
Mon
24
Sunrise--7:50-------7:52-------7:54-----
Sunset----4:14-------4:13-------4:12---
clear
clear
part cloud
cloud
cloud
cloud
cloud
light rain
mod rain
rain showers
rain showers
clear
part cloud
cloud
cloud
light rain
rain showers
light rain
light rain
part cloud
cloud
cloud
light rain
light rain
Rain (mm)
-------5751----4611---12
Temp. °C6667888810999109910119899988
Feels °C (?)233320-103665754430-10-1-2-3-3
  • 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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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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