Llanddwyn Island Surf Break

Lat Long: 53.13° N 4.42° W

Llanddwyn Island 48 hour detailed Surf Forecast

Issued: 6 pm 10 Aug 2026 (local time)

Forecast update in  hr  min

Today's Llanddwyn Island sea temperature is
17.9° C
2.3° 

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 2AM is: 0.1m 6s primary swell from a Southwest direction (forecast issued at 06:00pm August 10). The wind direction is predicted to be cross-offshore.

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 25°C on Wed afternoon, min 15°C on Mon night). Wind will be generally light.

Mon
10
Tuesday
11
Wednesday
12
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)
0.3
SW
6
0.3
SW
6
0.3
SW
6
0.2
WSW
6
0.1
SW
6
0.1
SW
6
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
Wave Graph
Metric surfscale
Energy kJ
5
5
6
4
2
2
2
2
1
1
1
3
2
2
4
2
2
4
3
Wind (km/h)
15
N
15
NNE
15
NE
10
ENE
10
ENE
5
ESE
10
S
15
SSW
10
SW
5
SW
5
ESE
5
SE
10
SSE
10
S
10
S
5
SW
10
NW
5
N
5
ENE
Wind State
cross-off
off
off
cross-off
cross-off
cross-off
cross-on
cross-on
on
glassy
glassy
glassy
cross-on
cross-on
cross-on
on
cross
cross-off
cross-off
High Tide
8:14PM3.71m
8:49AM3.66m
9:07PM4.05m
9:40AM3.86m
9:54PM4.35m
Low Tide
2:42PM0.68m
3:13AM0.33m
3:34PM0.38m
4:04AM-0.04m
4:20PM0.13m
part cloud
cloud
part cloud
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:55
8:53
8:52
 mm
Temp °C
16
16
15
15
16
16
19
22
22
21
20
20
20
20
22
24
25
24
23
Feels °C
13
13
12
13
14
14
17
19
20
20
19
19
19
18
20
22
23
23
22
  • 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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