Llanddwyn Island surfForecast / Wales – Anglesy / UK

information circle48hr Weather and Surf, issued 5 am Friday 13 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
7.7° 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 12PM is: 0.9m 12s primary swell from a West-southwest direction (forecast issued at 05:00am February 13). An open ocean swell of 0.8m 3s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (GMT) & DateWave HeightWave Period
Morning (13 Feb)3.5ft (1.1m)13s
Afternoon (13 Feb)2.5ft (0.7m)12s
Evening (13 Feb)1.5ft (0.5m)12s

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

Updates in  hr  min  s Forecast update imminent
Friday
13
Saturday
14
Sunday
15
Mon
16
3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM
Rating
(10 max)
3
3
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.5
SW
1.4
SW
1.1
SW
0.9
WSW
0.7
SW
0.6
WSW
0.5
SW
0.4
WSW
0.4
SW
0.3
SW
0.4
SW
0.4
SW
0.4
SW
0.9
SSW
1.5
S
2.4
SSW
2.2
SW
1.6
SW
1.4
SW
1.7
SW
1.9
SW
1.7
WSW
1.8
WSW
2
WSW
Period(s) (?)1313131212121212101013131345788856766
Wave
Graph
(?)Metric surfscale
Energy kJ (?)792623382255142916854281844434219119509587306226154303254229309
Wind
(km/h)
10
E
20
ENE
35
NE
40
NE
40
NE
30
NNE
25
NNE
15
NNE
15
N
10
N
5
N
10
SSW
20
SSW
35
S
40
SSE
50
S
25
SSW
25
WSW
25
SW
30
SW
30
WSW
30
WSW
35
WSW
40
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offoffoffoffoffoffcross-
off
cross-
off
cross-
off
glassoncross-
on
cross-
on
cross-
on
cross-
on
oncross-
on
onononcross-
on
cross-
on
cross-
on
High Tide
/ height (m)
6:52AM
3.00
7:22PM
3.00
7:43AM
3.27
8:06PM
3.21
8:21AM
3.56
8:40PM
3.42
Low Tide
/ height (m)
1:34PM
1.26
1:50AM
1.17
2:17PM
0.95
2:28AM
0.88
2:54PM
0.64
Friday
13
Saturday
14
Sunday
15
Mon
16
Sunrise--7:39-------7:37-------7:35-----
Sunset----5:23-------5:24-------5:27---
part cloud
cloud
light rain
light rain
cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
light rain
light rain
rain showers
cloud
clear
light rain
light rain
light rain
light rain
light rain
Rain (mm)
--11----------242--12211
Temp. °C664344333445542377789876
Feels °C (?)31-4-6-5-4-4-2-2011-1-5-8-8111221-1-4
  • 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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