Llanddwyn Island Surf Break

Lat Long: 53.13° N 4.42° W

Llanddwyn Island 48 hour detailed Surf Forecast

Issued: 6 pm 22 Sep 2026 (local time)

Forecast update in  hr  min

Today's Llanddwyn Island sea temperature is
16.8°C
1.8° 

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 (22 Sep):

  • Afternoon surf: Afternoon surf (22 Sep, local time) - 1.5ft (0.4m), 4s period with SW swell.
  • Evening surf: Evening surf (22 Sep, local time) - 0.5ft (0.1m), 18s period with W swell.

The current surf forecast for Llanddwyn Island at 11PM is: 0.1m 18s primary swell from a West direction and 0.1m 5s secondary swell from a West direction, 0.3m 3s secondary swell from a Southwest direction (forecast issued at 06:00pm September 22). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (22 Sep)--
Afternoon (22 Sep)1.5ft (0.4m)4s
Evening (22 Sep)0.5ft (0.1m)18s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Tue night. Very mild (max 17°C on Tue afternoon, min 12°C on Wed night). Wind will be generally light.

Tue
22
Wednesday
23
Thursday
24
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SW
4
0.1
W
12
0.1
W
18
0.1
W
17
0.5
SW
4
0.6
WSW
4
0.4
WSW
4
0.1
W
14
0.1
W
13
0.4
NW
4
0.2
WNW
3
0.1
SW
4
0.1
SW
4
0.3
SSE
3
0.5
S
3
0.9
SSW
4
0.9
SSW
5
0.9
SW
5
0.8
SW
5
Wave Graph
Metric surfscale
Energy kJ
3
3
6
6
6
12
8
4
3
4
1
1
1
1
5
26
36
36
35
Wind (km/h)
15
SSW
10
S
10
S
15
SSW
15
SW
15
WNW
20
NNW
20
NNW
15
N
5
NNE
5
E
10
E
10
SE
15
SSE
20
S
30
S
25
SSW
25
SSW
20
SSW
Wind State
cross-on
cross-on
cross-on
cross-on
on
cross
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
7:57PM3.28m
8:24AM3.18m
8:32PM3.56m
8:55AM3.43m
9:01PM3.83m
Low Tide
1:57PM1.28m
2:29AM0.97m
2:38PM0.99m
3:05AM0.65m
3:14PM0.70m
cloud
cloud
cloud
cloud
cloud
light rain
rain showers
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:03
7:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:16
7:15
7:12
 mm
1
1
Temp °C
17
16
16
16
17
14
13
14
14
13
12
12
12
12
13
15
17
16
16
Feels °C
16
16
15
15
15
12
9
10
11
12
11
10
10
9
9
9
13
13
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 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Llanddwyn Island surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Nearest locationNearest