Llanddwyn Island Surf Break

Lat Long: 53.13° N 4.42° W

Llanddwyn Island 48 hour detailed Surf Forecast

Issued: 12 pm 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Llanddwyn Island sea temperature is
17.7°C
2.1° 

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 Sep):

  • Morning surf: Morning surf (04 Sep, local time) - 5ft (1.6m), 6s period with WSW swell.
  • Afternoon surf: Afternoon surf (04 Sep, local time) - 4.5ft (1.4m), 6s period with WSW swell.
  • Evening surf: Evening surf (04 Sep, local time) - 4.5ft (1.4m), 5s period with WSW swell.

The current surf forecast for Llanddwyn Island at 8PM is: 1.3m 5s primary swell from a West-southwest direction (forecast issued at 12:00pm September 04). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (04 Sep)5ft (1.6m)6s
Afternoon (04 Sep)4.5ft (1.4m)6s
Evening (04 Sep)4.5ft (1.4m)5s

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


Short Range Forecast

Light rain (total 6mm), mostly falling on Sat night. Warm (max 20°C on Sun afternoon, min 13°C on Fri night). Mainly fresh winds.

Fri
4
Saturday
5
Sunday
6
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)
1.6
WSW
5
1.6
WSW
6
1.4
WSW
6
1.3
WSW
5
1.4
WSW
5
1.4
W
5
1.2
W
5
1.1
W
5
0.9
W
5
0.6
SW
5
0.6
SW
6
0.6
SW
4
0.6
SW
4
0.8
SSW
4
1
SSW
5
1.1
SW
5
1
SSW
5
1.1
SW
5
1.2
SW
6
1.3
SW
6
1.3
SW
6
Wave Graph
Metric surfscale
Energy kJ
140
154
122
95
94
102
77
62
40
21
20
8
11
18
46
62
61
67
92
128
116
Wind (km/h)
35
WSW
30
WSW
30
WSW
30
WSW
35
W
30
W
25
WNW
20
W
15
WSW
15
SW
20
SW
20
SSW
15
S
25
S
25
S
25
S
25
S
35
S
30
SSW
30
SSW
25
SSW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
2:44PM3.26m
3:24AM3.18m
4:06PM3.08m
5:04AM3.02m
5:48PM3.13m
Low Tide
9:25AM1.02m
9:57PM1.11m
10:40AM1.25m
11:26PM1.19m
12:11PM1.26m
part cloud
cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
cloud
light rain
light rain
part cloud
part cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:31
6:33
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:00
7:58
7:55
 mm
2
4
Temp °C
15
16
17
17
16
14
13
13
14
15
15
15
15
15
14
14
16
19
20
18
17
Feels °C
9
10
12
12
10
9
8
10
11
12
12
12
12
11
10
11
12
13
15
14
14
  • 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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