Llanddwyn Island Surf Break

Lat Long: 53.13° N 4.42° W

Llanddwyn Island 48 hour detailed Surf Forecast

Issued: 12 pm 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Llanddwyn Island sea temperature is
18.0°C
2.3° 

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 (27 Aug):

  • Morning surf: Morning surf (27 Aug, local time) - 0.5ft (0.1m), 7s period with SW swell.
  • Afternoon surf: Afternoon surf (27 Aug, local time) - 0.5ft (0.1m), 12s period with W swell.
  • Evening surf: Evening surf (27 Aug, local time) - 0.5ft (0.1m), 12s period with W swell.

The current surf forecast for Llanddwyn Island at 7PM is: 0.1m 12s primary swell from a West direction and 0.1m 6s secondary swell from a Southwest direction (forecast issued at 12:00pm August 27). The wind direction is predicted to be glassy.

Time (BST) & DateWave HeightWave Period
Morning (27 Aug)0.5ft (0.1m)7s
Afternoon (27 Aug)0.5ft (0.1m)12s
Evening (27 Aug)0.5ft (0.1m)12s

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


Short Range Forecast

Moderate rain (total 19mm), heaviest on Thu afternoon. Very mild (max 18°C on Fri morning, min 14°C on Sat night). Wind will be generally light.

Thu
27
Friday
28
Saturday
29
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)
0.1
SW
7
0.1
W
12
0.1
W
12
0.1
W
12
0.1
W
12
0.2
SSW
7
0.5
SSW
3
0.6
S
4
0.5
SSW
4
0.3
SW
6
0.5
SW
6
0.6
SW
6
0.6
SW
6
0.9
SW
6
1.1
SW
5
1.1
SW
6
0.9
SW
6
0.9
SSW
6
0.9
SW
6
0.8
SW
7
0.7
SW
7
Wave Graph
Metric surfscale
Energy kJ
2
3
3
3
3
4
6
9
9
6
18
26
27
59
69
80
56
52
56
55
54
Wind (km/h)
15
ENE
10
E
5
NNE
5
SW
5
SSE
10
S
15
S
15
S
10
SSW
10
WSW
10
WNW
10
SW
15
S
20
SSW
20
S
20
S
15
SE
10
SSE
20
W
15
WSW
15
WNW
Wind State
off
cross-off
glassy
glassy
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross
High Tide
9:55AM3.58m
10:04PM4.02m
10:23AM3.73m
10:32PM4.18m
10:51AM3.84m
Low Tide
4:20PM0.46m
4:45AM0.20m
4:53PM0.30m
5:18AM0.06m
5:26PM0.21m
light rain
light rain
mod rain
light rain
cloud
cloud
cloud
cloud
part cloud
light rain
rain showers
clear
clear
part cloud
cloud
light rain
light rain
rain showers
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:18
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:19
8:16
8:15
 mm
1
2
6
1
1
1
2
4
1
Temp °C
17
17
17
17
16
16
16
16
17
18
18
17
16
16
16
16
15
17
18
16
15
Feels °C
16
17
19
18
16
15
15
15
17
18
18
17
15
14
14
14
14
16
16
14
13
  • 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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