Llanddwyn Island Surf Break

Lat Long: 53.13° N 4.42° W

Llanddwyn Island 48 hour detailed Surf Forecast

Issued: 12 am 07 Sep 2026 (local time)

Forecast update in  hr  min

Today's Llanddwyn Island sea temperature is
17.5°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 (07 Sep):

  • Morning surf: Morning surf (07 Sep, local time) - 1ft (0.3m), 14s period with WSW swell.
  • Afternoon surf: Afternoon surf (07 Sep, local time) - 4.5ft (1.3m), 5s period with SW swell.
  • Evening surf: Evening surf (07 Sep, local time) - 6ft (1.9m), 6s period with SW swell.

The current surf forecast for Llanddwyn Island at 3AM is: 1.3m 6s primary swell from a Southwest direction and 1.1m 6s secondary swell from a Southwest direction, 0.1m 16s secondary swell from a Southwest direction (forecast issued at 12:00am September 07). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (07 Sep)1ft (0.3m)14s
Afternoon (07 Sep)4.5ft (1.3m)5s
Evening (07 Sep)6ft (1.9m)6s

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


Short Range Forecast

Light rain (total 6mm), mostly falling on Mon night. Very mild (max 17°C on Sun night, min 12°C on Mon night). Winds decreasing (strong winds from the SW on Mon night, light winds from the SW by Wed afternoon).

Monday
7
Tuesday
8
Wednesday
9
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)
1.3
SW
6
1.1
SW
6
0.9
SW
5
0.3
WSW
14
0.8
SW
13
1.3
SW
5
1.6
SW
6
2
SW
7
1.7
WSW
7
1.3
WSW
7
1.2
WSW
7
1.3
WSW
5
1.3
W
5
1.4
W
5
1.4
W
5
1.6
WNW
6
1.6
NW
6
1.6
NW
6
1.4
NW
6
1.1
NW
6
0.9
NW
5
0.4
SW
8
0.3
SW
8
0.3
SW
8
Wave Graph
Metric surfscale
Energy kJ
97
67
42
41
215
73
181
342
277
154
136
84
88
106
104
155
196
184
143
77
36
21
9
9
Wind (km/h)
25
SSW
20
WNW
15
WSW
20
SW
25
SW
30
SSW
35
SW
40
SW
20
WSW
20
W
20
W
30
W
35
W
35
W
35
WNW
40
WNW
35
NW
30
NW
25
NNW
20
NNW
15
NW
15
W
10
SW
15
S
Wind State
on
cross
cross-on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross-off
cross-off
cross
cross-on
on
cross-on
High Tide
6:46AM3.12m
7:12PM3.41m
7:58AM3.37m
8:11PM3.77m
8:48AM3.63m
8:58PM4.11m
Low Tide
00:57AM0.99m
1:29PM1.03m
2:07AM0.62m
2:30PM0.70m
3:02AM0.22m
3:19PM0.38m
cloud
light rain
part cloud
cloud
part cloud
cloud
light rain
light rain
light rain
cloud
clear
clear
cloud
rain showers
clear
clear
cloud
cloud
cloud
cloud
cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:37
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:52
7:51
7:49
 mm
1
1
2
1
1
Temp °C
17
15
15
15
16
16
16
15
13
13
12
13
14
15
15
14
14
14
14
13
14
14
14
13
Feels °C
14
12
13
12
11
11
10
8
9
9
8
7
7
8
8
6
7
8
9
9
11
11
12
10
  • 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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