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Surf Forecasts:

Llanddwyn Island surfForecast / Wales – Anglesy / UK

information circle48hr Weather and Surf, issued 11 am Tuesday 17 Feb 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 normal for this time of year)

How big are the waves at Llanddwyn Island today?

The current surf forecast for Llanddwyn Island at 3PM is: 0.5m 8s primary swell from a Southwest direction and 0.4m 5s secondary swell from a Northwest direction (forecast issued at 11:00am February 17). The wind direction is predicted to be cross-offshore.

Time (GMT) & DateWave HeightWave Period
Morning (17 Feb)1.5ft (0.5m)9s
Afternoon (17 Feb)1.5ft (0.5m)8s
Evening (17 Feb)1.5ft (0.5m)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
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
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
1
0
0
0
0
0
0
0
0
0
0
0
1
2
2
1
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.5
SW
0.5
SW
0.5
SW
0.5
SW
0.5
SW
1
SE
1.3
SSE
1.5
SSE
1.6
SSE
1.6
SSE
1.3
SSE
0.6
SW
0.6
SW
0.6
SW
0.6
WSW
0.7
SW
0.9
WSW
0.8
WSW
0.9
WSW
1.3
W
1.4
W
1.2
W
1.1
SW
1.3
SW
Period(s) (?)99888455555101011121413141255565
Wave
Graph
(?)Metric surfscale
Energy kJ (?)37363534323573114125125837682968820628225026490109786978
Wind
(km/h)
10
NNE
10
ENE
15
E
20
ESE
25
ESE
30
ESE
25
ESE
30
SE
30
SE
35
SE
30
ESE
30
E
25
ENE
25
ENE
20
NE
15
NE
10
NE
10
WNW
15
W
20
WNW
20
W
20
WSW
20
SSW
35
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscrosscrosscross-
off		cross-
off		cross-
off		offoffoffoffcrosscross-
on		crosscross-
on		oncross-
on		cross-
on
High Tide
/ height (m)
9:20AM
4.08
9:39PM
3.78
9:49AM
4.27
10:08PM
3.91
10:19AM
4.39
10:39PM
3.98
Low Tide
/ height (m)
4:03PM
0.11
4:11AM
0.21
4:37PM
-0.05
4:46AM
0.12
5:13PM
-0.12
5:22AM
0.12
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Sunrise7:31-------7:30-------7:28-------
Sunset--5:30-------5:32-------5:35-----
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
cloud
cloud
cloud
part cloud
cloud
cloud
light rain
Rain (mm)
-------------2431------1
Temp. °C555432334454432234577679
Feels °C (?)110-2-4-6-4-5-4-4-3-4-3-4-4-301121122
  • 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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