Surf Break

Lat Long: 53.13° N 4.42° W

Llanddwyn Island 48 hour detailed Surf Forecast

Issued: 12 am 25 Sep 2026 (local time)

Forecast update in  hr  min

Today's Llanddwyn Island sea temperature is
16.9°C
1.9° 

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 (25 Sep):

  • Morning surf: Morning surf (25 Sep, local time) - 2ft (0.6m), 5s period with SW swell.
  • Afternoon surf: Afternoon surf (25 Sep, local time) - 0.5ft (0.2m), 16s period with WSW swell.
  • Evening surf: Evening surf (25 Sep, local time) - 0.5ft (0.1m), 14s period with SW swell.

The current surf forecast for Llanddwyn Island at 8AM is: 0.7m 5s primary swell from a Southwest direction and 0.1m 17s secondary swell from a Southwest direction (forecast issued at 12:00am September 25). The wind direction is predicted to be cross-offshore.

Time (BST) & DateWave HeightWave Period
Morning (25 Sep)2ft (0.6m)5s
Afternoon (25 Sep)0.5ft (0.2m)16s
Evening (25 Sep)0.5ft (0.1m)14s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Sun afternoon. Very mild (max 17°C on Sun afternoon, min 13°C on Fri morning). Winds increasing (calm on Fri afternoon, fresh winds from the S by Sun morning).

Friday
25
Saturday
26
Sunday
27
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
1
1
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)
1
SW
5
0.9
SW
5
0.7
SW
5
0.6
SW
5
0.2
WSW
16
0.2
WSW
16
0.1
SW
15
0.1
SW
14
0.7
WSW
4
0.7
WSW
4
0.8
WSW
4
1
SW
5
1.1
SW
5
1.1
SW
5
1.1
SW
5
1.1
SW
6
1.1
SW
5
1.1
SW
5
1.2
SW
6
1.3
SSW
6
1.3
SSW
6
1.3
SSW
6
1.3
SW
6
0.9
SW
6
Wave Graph
Metric surfscale
Energy kJ
46
40
23
13
25
24
9
8
14
16
25
43
55
63
68
76
65
62
88
108
100
115
126
66
Wind (km/h)
20
SSW
20
SW
15
NW
5
NNW
5
NW
5
SW
10
SSW
15
SSW
15
SSW
15
SSW
20
SW
25
SW
30
SSW
25
SSW
20
SSW
20
S
20
S
20
S
25
S
30
S
30
S
25
S
10
SW
10
NNW
Wind State
cross-on
on
cross
cross-off
cross
glassy
cross-on
cross-on
on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-off
High Tide
9:23AM3.66m
9:29PM4.06m
9:50AM3.87m
9:58PM4.25m
10:18AM4.03m
Low Tide
3:39AM0.35m
3:48PM0.45m
4:12AM0.11m
4:23PM0.24m
4:46AM-0.05m
4:58PM0.11m
cloud
cloud
light rain
cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
mod rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
7:07
—
—
—
—
—
—
—
7:09
—
—
—
—
—
—
—
7:11
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
—
7:09
—
—
—
—
—
—
—
7:07
—
—
—
—
—
—
—
7:05
—
 mm
—
—
1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
9
3
Temp °C
16
16
14
13
14
14
13
13
14
14
13
15
15
16
15
14
14
13
13
13
15
17
14
13
Feels °C
13
14
12
11
12
13
10
10
11
11
9
11
10
12
12
11
11
9
8
7
9
13
13
11
  • 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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