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Surf Forecasts:

Llanddwyn Island surfForecast / Wales – Anglesy / UK

information circle48hr Weather and Surf, issued 11 am Thursday 20 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
12.4° C
 (Which is slightly warmer than usual)

How big are the waves at Llanddwyn Island today?

The current surf forecast for Llanddwyn Island at 3PM is: 0.1m 12s primary swell from a West direction (forecast issued at 11:00am November 20). An open ocean swell of 0.9m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (GMT) & DateWave HeightWave Period
Morning (20 Nov)0.5ft (0.1m)12s
Afternoon (20 Nov)0.5ft (0.1m)12s
Evening (20 Nov)0.5ft (0.1m)12s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Thursday
20
Friday
21
Saturday
22
Sunday
23
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
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
See all maps
Wave Height (m) & direction (?)
0.1
W
0.1
W
0.1
W
0.1
W
0.1
W
0.1
W
0.1
W
0.3
WNW
0.2
WNW
0.1
W
0.6
W
0.9
WSW
1.3
SW
1.7
SW
2.1
SW
1.3
SW
1
SW
1
WSW
0.9
SW
1.1
SW
1.1
SW
2.4
SW
2.5
WSW
2.5
WSW
Period(s) (?)12121212121212441534567777755788
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3333333314731761783961558696754965579785795
Wind
(km/h)
25
N
25
N
25
N
20
N
20
N
15
NNE
10
N
5
N
5
SSW
10
SW
25
SW
30
SW
35
SSW
40
SSW
40
SW
20
NW
15
WNW
15
WSW
20
SW
20
SSW
30
SSW
45
S
45
SW
40
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		glassononononononcrosscrosscross-
on		ononcross-
on		cross-
on		oncross-
on
High Tide
/ height (m)
8:58AM
3.85
9:15PM
3.77
9:30AM
3.86
9:49PM
3.71
10:02AM
3.82
10:23PM
3.59
Low Tide
/ height (m)
3:45PM
0.43
3:59AM
0.52
4:19PM
0.43
4:33AM
0.59
4:55PM
0.49
5:08AM
0.69
Thursday
20
Friday
21
Saturday
22
Sunday
23
Sunrise7:48-------7:50-------7:52-------
Sunset--4:15-------4:14-------4:13-----
clear
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
part cloud
cloud
cloud
light rain
mod rain
rain showers
clear
part cloud
light rain
rain showers
light rain
light rain
thunderstorm
rain showers
Rain (mm)
-------------172--112341
Temp. °C56666666677799101091010101010129
Feels °C (?)-2-1-1-10123330-1112556664140
  • 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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View detailed surf forecast for Llanddwyn Island at:
surf-forecast.com

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