Llanddwyn Island Surf Break

Lat Long: 53.13° N 4.42° W

Llanddwyn Island 48 hour detailed Surf Forecast

Issued: 12 pm 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's Llanddwyn Island sea temperature is
18.1° C
2.5° 

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 (11 Aug):

  • Morning surf: Morning surf (11 Aug, local time) - 0.5ft (0.1m), 6s period with SW swell.
  • Afternoon surf: Afternoon surf (11 Aug, local time) - 0.5ft (0.1m), 6s period with SW swell.
  • Evening surf: Evening surf (11 Aug, local time) - 0.5ft (0.1m), 6s period with SW swell.

The current surf forecast for Llanddwyn Island at 7PM is: 0.1m 6s primary swell from a Southwest direction (forecast issued at 12:00pm August 11). The wind direction is predicted to be glassy.

Time (BST) & DateWave HeightWave Period
Morning (11 Aug)0.5ft (0.1m)6s
Afternoon (11 Aug)0.5ft (0.1m)6s
Evening (11 Aug)0.5ft (0.1m)6s

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


Short Range Forecast

Mostly dry. Warm (max 26°C on Wed afternoon, min 17°C on Thu night). Wind will be generally light.

Tue
11
Wednesday
12
Thursday
13
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.1
W
11
0.1
W
11
0.1
W
11
0.1
SW
10
0.1
W
10
0.1
W
10
0.1
SW
10
0.1
SW
9
0.1
W
11
0.2
WSW
9
0.2
WSW
8
0.2
WSW
8
0.2
WSW
8
0.2
WSW
7
0.2
WSW
7
0.6
SW
4
Wave Graph
Metric surfscale
Energy kJ
2
1
1
1
1
3
2
2
4
2
2
4
3
3
8
7
6
6
5
5
11
Wind (km/h)
10
S
15
SSW
10
WSW
5
SSW
5
SE
5
SE
5
SSE
10
SSE
15
S
10
SSW
10
W
5
N
5
ENE
10
S
10
SSE
5
S
5
SW
10
WSW
10
WSW
10
SW
10
SSE
Wind State
cross-on
cross-on
on
glassy
glassy
glassy
cross-on
cross-on
cross-on
cross-on
cross-on
cross-off
glassy
cross-on
cross-on
cross-on
on
on
on
on
cross-on
High Tide
8:49AM3.66m
9:07PM4.05m
9:40AM3.86m
9:54PM4.35m
10:25AM4.00m
Low Tide
3:34PM0.38m
4:04AM-0.04m
4:20PM0.13m
4:50AM-0.29m
5:04PM-0.02m
clear
clear
part cloud
part cloud
clear
part cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
clear
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:53
8:52
8:50
 mm
Temp °C
19
22
22
21
20
20
20
20
21
24
26
25
23
22
21
21
22
23
23
21
19
Feels °C
17
19
20
21
20
20
19
18
18
21
24
24
22
21
20
20
21
22
22
21
19
  • 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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