Llanddwyn Island Surf Break

Lat Long: 53.13° N 4.42° W

Llanddwyn Island 48 hour detailed Surf Forecast

Issued: 6 pm 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's Llanddwyn Island sea temperature is
17.5° C
2.0° 

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 (06 Aug):

  • Morning surf: Morning surf (06 Aug, local time) - 3ft (0.9m), 5s period with NW swell.
  • Afternoon surf: Afternoon surf (06 Aug, local time) - 2.5ft (0.7m), 4s period with W swell.
  • Evening surf: Evening surf (06 Aug, local time) - 1.5ft (0.5m), 3s period with SW swell.

The current surf forecast for Llanddwyn Island at 3AM is: 0.9m 5s primary swell from a West-northwest direction and 0.5m 6s secondary swell from a Southwest direction (forecast issued at 06:00pm August 05). The wind direction is predicted to be cross-shore.

Time (BST) & DateWave HeightWave Period
Morning (06 Aug)3ft (0.9m)5s
Afternoon (06 Aug)2.5ft (0.7m)4s
Evening (06 Aug)1.5ft (0.5m)3s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Wed afternoon. Very mild (max 17°C on Wed afternoon, min 13°C on Wed night). Wind will be generally light.

Wed
5
Thursday
6
Friday
7
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)
1.2
WSW
5
1
WSW
5
0.7
SW
6
1.2
W
5
0.9
WNW
5
1
NW
5
0.8
NW
5
0.7
W
4
0.4
SW
6
0.4
SW
6
0.5
SW
3
0.6
SW
4
0.7
WSW
4
0.5
SW
4
0.4
SW
4
0.5
SW
4
0.5
SW
4
0.5
SW
4
0.7
SW
4
Wave Graph
Metric surfscale
Energy kJ
84
51
32
67
44
49
29
18
9
11
5
14
16
9
6
6
7
7
18
Wind (km/h)
30
W
25
WNW
25
WNW
30
WNW
25
WNW
25
NW
20
WNW
20
WNW
10
WSW
15
SW
15
S
15
SSE
10
SSE
5
S
10
SW
20
SW
20
SW
15
SSW
15
SSE
Wind State
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross-on
cross-on
on
cross-on
cross
cross-on
cross-on
on
on
on
cross-on
cross-on
High Tide
2:18PM3.37m
2:39AM3.55m
3:15PM3.22m
3:44AM3.33m
4:28PM3.12m
Low Tide
9:10PM0.99m
9:47AM0.92m
10:11PM1.16m
10:55AM1.10m
rain showers
rain showers
rain showers
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
cloud
part cloud
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:05
9:04
9:01
 mm
1
1
1
Temp °C
17
16
15
13
13
13
13
14
15
15
15
15
15
15
16
16
16
16
15
Feels °C
12
11
10
8
8
9
9
10
12
12
12
13
13
13
13
12
12
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 

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