Llanddwyn Island Surf Break

Lat Long: 53.13° N 4.42° W

Llanddwyn Island 48 hour detailed Surf Forecast

Issued: 12 am 21 Jul 2026 (local time)

Forecast update in  hr  min

Today's Llanddwyn Island sea temperature is
17.8° C
2.6° 

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 (21 Jul):

  • Morning surf: Morning surf (21 Jul, local time) - 0.5ft (0.1m), 4s period with NW swell.

The current surf forecast for Llanddwyn Island at 3AM is: 0.1m 5s primary swell from a Northwest direction (forecast issued at 12:00am July 21). An open ocean swell of 0.2m 5s is not directed at the surf break, a second open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (BST) & DateWave HeightWave Period
Morning (21 Jul)0.5ft (0.1m)4s
Afternoon (21 Jul)--
Evening (21 Jul)--

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


Short Range Forecast

Mostly dry. Very mild (max 19°C on Thu afternoon, min 11°C on Tue night). Wind will be generally light.

Tuesday
21
Wednesday
22
Thursday
23
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)
0.4
NNW
5
0.1
NW
5
0.3
NNW
5
0.3
NNW
5
0.4
NNW
3
0.5
NNW
3
0.4
NNW
3
0.5
N
3
0.1
W
16
0.1
W
16
0.8
NNW
7
0.1
NW
6
0.7
NW
6
0.7
NW
4
0.6
NNW
4
0.5
NNW
3
0.4
NNW
5
0.4
NNW
6
0.4
NNW
6
0.4
NNW
5
0.4
NNW
5
0.4
NNW
3
0.3
NNW
3
0.2
NNW
3
Wave Graph
Metric surfscale
Energy kJ
0
1
0
0
0
0
0
0
5
5
0
2
0
0
0
0
0
0
0
0
0
0
0
0
Wind (km/h)
10
N
10
N
10
N
15
NNW
20
NNW
20
NNW
20
N
15
NNE
15
N
15
N
15
NNW
20
NNW
20
NNW
20
NNW
20
NNW
15
N
15
N
10
N
10
N
15
NNW
15
NNW
15
NNW
15
N
10
NE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
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
cross-off
cross-off
off
High Tide
2:51AM3.65m
3:28PM3.18m
3:49AM3.33m
4:30PM3.04m
4:56AM3.09m
5:37PM2.97m
Low Tide
9:44AM0.78m
9:59PM1.11m
10:38AM1.10m
11:03PM1.32m
11:45AM1.31m
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
part cloud
cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:16
5:18
5:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:30
9:28
9:27
 mm
Temp °C
13
13
12
14
15
16
15
13
12
11
11
14
17
18
18
15
14
13
13
15
17
18
19
17
Feels °C
11
12
11
12
12
13
12
11
10
8
8
11
14
15
15
13
12
12
12
13
15
16
17
16
  • 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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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.


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