Llanddwyn Island surfForecast / Wales – Anglesy / UK

information circle48hr Weather and Surf, issued 5 am Monday 17 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
12.6° C
(Which is slightly warmer than usual)


How big are the waves at Llanddwyn Island today?

The current surf forecast for Llanddwyn Island at 9AM is: 0.3m 9s primary swell from a Southwest direction (forecast issued at 05:00am November 17). An open ocean swell of 0.2m 5s is not directed at the surf break, a second open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (GMT) & DateWave HeightWave Period
Morning (17 Nov)1ft (0.3m)9s
Afternoon (17 Nov)1ft (0.3m)9s
Evening (17 Nov)1ft (0.3m)9s

Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent
Monday
17
Tuesday
18
Wednesday
19
Thu
20
3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.4
SW
0.3
SW
0.3
SW
0.3
SW
0.3
SW
0.3
SW
0.3
SW
0.1
W
0.1
W
0.5
WNW
0.8
W
1
WNW
1.4
WNW
1.5
WNW
1.6
WNW
1.7
NW
1.7
NNW
0.1
SW
0.1
W
0.1
W
1.1
NNW
1.2
NNW
1.3
NNW
1
NNW
Period(s) (?)1099999913133455666751286677
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3313131313131233619459913116621701310000
Wind
(km/h)
25
NNE
25
NNE
15
NE
15
NE
10
N
5
NNW
5
W
15
WNW
15
WNW
20
W
25
W
25
WNW
30
WNW
25
WNW
35
NW
45
N
50
N
40
N
40
N
35
N
30
N
30
N
30
N
25
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffoffcross-
off
glasscross-
on
crosscross-
on
cross-
on
cross-
on
crosscross-
on
crosscrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
7:24AM
3.50
7:31PM
3.66
7:55AM
3.66
8:07PM
3.73
8:26AM
3.77
8:41PM
3.77
Low Tide
/ height (m)
1:58PM
0.73
2:18AM
0.50
2:36PM
0.59
2:52AM
0.47
3:11PM
0.49
Monday
17
Tuesday
18
Wednesday
19
Thu
20
Sunrise--7:43-------7:46-------7:48-----
Sunset----4:19-------4:17-------4:16---
clear
clear
clear
clear
clear
clear
cloud
cloud
part cloud
cloud
light rain
rain showers
light rain
light rain
light rain
light rain
light rain
light rain
clear
clear
clear
part cloud
clear
clear
Rain (mm)
----------11121211------
Temp. °C876777777778999545566555
Feels °C (?)201244422101221-5-7-5-5-3-3-3-3-3
  • 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

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.


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