Llanddwyn Island surfForecast / Wales – Anglesy / UK

information circle48hr Weather and Surf, issued 11 pm Saturday 31 Jan 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
7.6° 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 8AM is: 0.7m 11s primary swell from a Southwest direction and 0.4m 4s secondary swell from a West-southwest direction (forecast issued at 11:00pm January 31). The wind direction is predicted to be onshore.

Time (GMT) & DateWave HeightWave Period
Morning (01 Feb)2.5ft (0.7m)11s
Afternoon (01 Feb)2ft (0.6m)9s
Evening (01 Feb)2.5ft (0.7m)11s

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

Updates in  hr  min  s Forecast update imminent
Sunday
01
Monday
02
Tuesday
03
9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM
Rating
(10 max)
1
0
0
0
0
0
0
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
1
2
Swell
Height Map
Wave Height (m) & direction (?)
1.2
WSW
1.1
SW
0.9
SW
0.7
SW
0.7
SW
0.6
SW
0.6
SW
0.7
SW
0.7
SW
0.4
SW
0.3
WSW
0.3
WSW
0.5
SW
0.4
SW
0.4
SW
0.3
SW
0.3
SW
0.3
SW
0.3
SW
0.2
WSW
0.3
WSW
0.5
WSW
0.6
WSW
0.7
WSW
Period(s) (?)15141413111091211171716988888101615171616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)6004762801831267670147130775551362416999162444160177223
Wind
(km/h)
10
SSW
15
SSW
15
S
10
S
10
WSW
25
WNW
15
WNW
15
NNW
10
NNW
10
ENE
10
E
15
E
20
E
30
E
30
E
30
E
30
E
30
E
35
E
35
E
35
E
25
E
15
E
15
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
cross-
on
cross-
on
oncrosscrosscross-
off
cross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
8:20PM
3.71
8:37AM
4.10
9:08PM
3.87
9:22AM
4.34
9:51PM
3.96
10:03AM
4.48
Low Tide
/ height (m)
3:02AM
0.30
3:31PM
-0.09
3:47AM
0.10
4:16PM
-0.28
4:28AM
0.01
4:58PM
-0.32
Sunday
01
Monday
02
Tuesday
03
Sunrise----8:02-------8:00-------7:58---
Sunset------5:00-------5:01-------5:04-
part cloud
cloud
cloud
rain showers
cloud
light rain
light rain
light rain
light rain
cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
part cloud
cloud
light rain
light rain
light rain
cloud
cloud
Rain (mm)
---1-1431----------221--
Temp. °C888787666777788776655554
Feels °C (?)544451223443211-1-1-2-2-4-3-200
  • 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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