Llanddwyn Island surfForecast / Wales – Anglesy / UK

information circle48hr Weather and Surf, issued 5 pm Monday 23 Mar 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
9.1° C
(Which is 1.4°C warmer than normal for this time of year)

How big are the waves at Llanddwyn Island today?

The current surf forecast for Llanddwyn Island at 1AM is: 1.6m 6s primary swell from a Southwest direction (forecast issued at 05:00pm March 23). The wind direction is predicted to be onshore.

Time (GMT) & DateWave HeightWave Period
Morning (24 Mar)6ft (1.8m)6s
Afternoon (24 Mar)8ft (2.5m)8s
Evening (24 Mar)8ft (2.4m)8s

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


Updates in  hr  min  s Forecast update imminent
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM
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
SSW
0.8
SSW
1.2
SW
1.6
SW
1.6
SW
1.5
SW
1.8
SW
2.2
SW
2.5
SW
2.4
WSW
2.4
WSW
2.5
W
2.1
NW
2.5
WNW
2.4
WNW
2.2
WNW
1.9
WNW
1.7
WNW
1.6
NW
1.4
NW
1.1
NW
0.8
NW
0.6
NW
0.4
WNW
Period(s) (?)945666678887777766676544
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3218701491711612634758227507517873936866044713002311771738531155
Wind
(km/h)
25
SSW
30
SSW
30
SSW
35
SSW
30
SSW
25
SW
35
SSW
40
SSW
50
SSW
30
W
50
W
50
WNW
40
NNW
55
NW
40
WNW
40
NW
40
NW
40
NW
35
NW
25
NNW
25
NNW
20
NNW
20
NW
20
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
ononononononcross-
on
cross-
on
cross-
on
cross-
off
crosscrosscrosscrosscrosscrosscross-
off
cross-
off
cross-
off
crosscross-
on
High Tide
/ height (m)
12:09AM
3.85
12:37PM
3.74
1:00AM
3.55
1:38PM
3.33
2:07AM
3.26
Low Tide
/ height (m)
6:49PM
0.41
7:12AM
0.49
7:41PM
0.79
8:12AM
0.80
8:46PM
1.13
9:30AM
1.03
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Sunrise------6:11-------6:09-------6:07-
Sunset-6:35-------6:37-------6:38------
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
clear
rain showers
light rain
light rain
rain showers
rain showers
clear
clear
part cloud
clear
Rain (mm)
---------21111-11111----
Temp. °C99991010101010977445666666667
Feels °C (?)4322453203-4-4-6-9-5-4-4-4-3-10111
  • 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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