Llanddwyn Island Surf Break

Lat Long: 53.13° N 4.42° W

Llanddwyn Island 48 hour detailed Surf Forecast

Issued: 12 am 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's Llanddwyn Island sea temperature is
17.5°C
2.0° 

Llanddwyn Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Llanddwyn Island today (08 Sep):

  • Morning surf: Morning surf (08 Sep, local time) - 4.5ft (1.3m), 5s period with W swell.
  • Afternoon surf: Afternoon surf (08 Sep, local time) - 4.5ft (1.3m), 5s period with W swell.
  • Evening surf: Evening surf (08 Sep, local time) - 4.5ft (1.3m), 5s period with NW swell.

The current surf forecast for Llanddwyn Island at 4AM is: 1.4m 7s primary swell from a West-southwest direction and 0.2m 12s secondary swell from a West-southwest direction (forecast issued at 12:00am September 08). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (08 Sep)4.5ft (1.3m)5s
Afternoon (08 Sep)4.5ft (1.3m)5s
Evening (08 Sep)4.5ft (1.3m)5s

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


Short Range Forecast

Moderate rain (total 15mm), heaviest on Thu afternoon. Very mild (max 16°C on Mon night, min 12°C on Tue night). Winds decreasing (fresh winds from the SW on Mon night, light winds from the WSW by Wed afternoon).

Tuesday
8
Wednesday
9
Thursday
10
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
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
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
WSW
7
1.4
WSW
7
1.3
WSW
6
1.3
W
5
1.3
W
5
1.3
W
5
1.1
W
5
1.3
NW
5
1.2
NW
6
1.2
NW
6
1.1
NW
5
0.9
NW
5
0.4
SW
8
0.4
SW
8
0.5
SW
8
0.3
SW
8
0.5
SW
4
0.8
SW
4
0.9
SW
4
1.1
SW
5
1.3
SSW
5
1.6
SW
6
1.7
SW
6
1.6
SW
6
Wave Graph
Metric surfscale
Energy kJ
306
180
106
83
90
90
60
87
89
89
62
35
16
15
28
9
6
17
28
49
83
150
212
190
Wind (km/h)
25
WSW
25
WSW
25
W
30
W
30
W
30
WNW
30
WNW
30
NW
30
NW
30
NW
15
NNW
25
WNW
15
WNW
15
WSW
15
SSW
15
SSW
15
SSW
20
SSW
20
S
30
S
35
SSW
35
SSW
30
SSW
25
SW
Wind State
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross-off
cross
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
High Tide
7:58AM3.37m
8:11PM3.77m
8:48AM3.63m
8:58PM4.11m
9:29AM3.86m
9:39PM4.37m
Low Tide
2:07AM0.62m
2:30PM0.70m
3:02AM0.22m
3:19PM0.38m
3:49AM-0.10m
4:02PM0.12m
light rain
part cloud
clear
clear
cloud
rain showers
rain showers
clear
clear
part cloud
part cloud
part cloud
clear
clear
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
light rain
mod rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:37
6:39
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:51
7:49
7:45
 mm
2
1
1
1
7
3
Temp °C
15
13
13
13
14
15
15
14
13
13
12
13
13
14
14
14
14
14
14
15
16
15
15
16
Feels °C
10
8
8
7
7
9
9
8
7
7
8
8
10
11
11
11
11
10
10
10
10
9
10
13
  • 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
How to use the Wavefinder 

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