Llanddwyn Island Surf Break

Lat Long: 53.13° N 4.42° W

Llanddwyn Island 48 hour detailed Surf Forecast

Issued: 6 pm 01 Aug 2026 (local time)

Forecast update in  hr  min

Today's Llanddwyn Island sea temperature is
17.0° C
1.5° 

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 (02 Aug):

  • Morning surf: Morning surf (02 Aug, local time) - 1ft (0.3m), 4s period with SW swell.
  • Afternoon surf: Afternoon surf (02 Aug, local time) - 0.5ft (0.1m), 8s period with W swell.
  • Evening surf: Evening surf (02 Aug, local time) - 0.5ft (0.1m), 10s period with W swell.

The current surf forecast for Llanddwyn Island at 1AM is: 0.4m 4s primary swell from a Southwest direction and 0.1m 9s secondary swell from a West direction (forecast issued at 06:00pm August 01). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (02 Aug)1ft (0.3m)4s
Afternoon (02 Aug)0.5ft (0.1m)8s
Evening (02 Aug)0.5ft (0.1m)10s

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


Short Range Forecast

Some drizzle, heaviest during Mon night. Warm (max 23°C on Mon morning, min 14°C on Sat night). Wind will be generally light.

Sat
1
Sunday
2
Monday
3
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
5
0.3
SW
4
0.3
SW
4
0.4
SW
4
0.4
SW
4
0.3
SW
4
0.3
SW
4
0.2
SSW
4
0.1
SW
8
0.1
SW
8
0.1
W
10
0.1
W
10
0.2
WSW
9
0.2
WSW
9
0.2
WSW
9
0.2
WSW
9
0.4
SW
8
0.4
SW
8
0.4
SW
8
Wave Graph
Metric surfscale
Energy kJ
3
3
2
4
4
2
2
1
3
3
3
3
8
8
8
7
18
18
18
Wind (km/h)
15
SW
10
SW
10
S
10
SSE
5
SE
5
E
5
ESE
5
WSW
15
N
20
NE
20
NE
15
NE
10
E
10
E
5
SE
5
SSW
15
NW
10
N
5
NW
Wind State
on
on
cross-on
cross-on
cross
cross-off
glassy
glassy
cross-off
off
off
off
cross-off
cross-off
cross
on
cross
cross-off
cross
High Tide
00:00AM4.10m
12:20PM3.64m
00:32AM4.05m
12:54PM3.59m
Low Tide
6:28PM0.40m
6:57AM0.24m
7:04PM0.48m
7:33AM0.34m
7:41PM0.62m
clear
clear
part cloud
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:35
5:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:13
9:10
9:08
 mm
Temp °C
16
16
15
14
14
14
17
18
17
16
16
15
16
17
21
23
21
16
17
Feels °C
13
14
13
12
13
13
16
17
14
13
13
13
15
16
20
22
19
14
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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