Llanddwyn Island Surf Break

Lat Long: 53.13° N 4.42° W

Llanddwyn Island 48 hour detailed Surf Forecast

Issued: 12 am 04 Aug 2026 (local time)

Forecast update in  hr  min

Today's Llanddwyn Island sea temperature is
17.3° 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 (04 Aug):

  • Morning surf: Morning surf (04 Aug, local time) - 3.5ft (1.0m), 5s period with SSW swell.
  • Afternoon surf: Afternoon surf (04 Aug, local time) - 3.5ft (1.0m), 5s period with SW swell.
  • Evening surf: Evening surf (04 Aug, local time) - 3.5ft (1.1m), 5s period with SW swell.

The current surf forecast for Llanddwyn Island at 6AM is: 0.4m 8s primary swell from a Southwest direction and 0.6m 4s secondary swell from a South direction (forecast issued at 12:00am August 04). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (04 Aug)3.5ft (1.0m)5s
Afternoon (04 Aug)3.5ft (1.0m)5s
Evening (04 Aug)3.5ft (1.1m)5s

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


Short Range Forecast

Light rain (total 4mm), mostly falling on Mon night. Warm (max 20°C on Tue morning, min 13°C on Wed night). Winds increasing (light winds from the SE on Mon night, fresh winds from the W by Wed morning).

Tuesday
4
Wednesday
5
Thursday
6
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
SW
8
0.4
SW
8
0.4
SW
8
1
SSW
5
1.1
SW
6
1
SW
5
1.1
SW
5
1.2
SW
6
1.1
SW
6
0.8
SW
6
1.2
W
5
1.4
W
5
1.3
W
5
1.1
WSW
5
1
WSW
5
1.1
W
5
1.3
W
5
1.3
WNW
6
1.3
WNW
6
1.2
W
6
0.8
NW
5
0.6
NW
5
0.4
SW
6
0.4
SW
5
Wave Graph
Metric surfscale
Energy kJ
23
17
16
54
69
51
55
86
79
46
67
104
99
66
51
56
86
106
109
88
34
15
11
10
Wind (km/h)
10
SE
10
S
20
SSE
20
SSE
25
S
25
SSW
30
SSW
25
SSW
15
W
25
W
30
W
35
W
30
W
30
W
25
W
30
W
30
W
30
WNW
25
WNW
25
WNW
20
WNW
15
W
15
SW
15
S
Wind State
cross
cross-on
cross
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross-on
on
cross-on
High Tide
1:07AM3.94m
1:32PM3.51m
1:48AM3.77m
2:18PM3.37m
2:39AM3.55m
3:15PM3.22m
Low Tide
8:12AM0.50m
8:22PM0.79m
8:55AM0.70m
9:10PM0.99m
9:47AM0.92m
cloud
cloud
light rain
light rain
cloud
part cloud
clear
clear
rain showers
part cloud
cloud
cloud
part cloud
part cloud
clear
clear
cloud
cloud
cloud
part cloud
part cloud
clear
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:37
5:39
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:07
9:05
9:04
 mm
1
1
1
Temp °C
18
17
17
18
20
19
19
17
16
14
14
14
15
17
17
15
14
13
13
13
14
16
16
15
Feels °C
18
16
15
17
18
16
15
14
15
10
9
8
9
11
12
9
8
8
8
9
10
13
13
12
  • 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