Llantwit Major Surf Break

Lat Long: 51.39° N 3.50° W

Llantwit Major 48 hour detailed Surf Forecast

Issued: 12 pm 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Llantwit Major sea temperature is
19.1°C
3.2° 

Llantwit Major surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Llantwit Major today (13 Sep):

  • Morning surf: Morning surf (13 Sep, local time) - 3ft (0.9m), 7s period with W swell.
  • Afternoon surf: Afternoon surf (13 Sep, local time) - 2.5ft (0.8m), 7s period with W swell.
  • Evening surf: Evening surf (13 Sep, local time) - 3ft (0.9m), 10s period with W swell.

The current surf forecast for Llantwit Major at 3PM is: 0.8m 7s primary swell from a West direction and 0.5m 10s secondary swell from a West direction (forecast issued at 12:00pm September 13). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (13 Sep)3ft (0.9m)7s
Afternoon (13 Sep)2.5ft (0.8m)7s
Evening (13 Sep)3ft (0.9m)10s

Table - waves today at Llantwit Major. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 5mm), mostly falling on Sun morning. Very mild (max 19°C on Mon morning, min 13°C on Tue night). Winds increasing (light winds from the SSW on Sun night, fresh winds from the WNW by Tue morning).

Sun
13
Monday
14
Tuesday
15
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)
0.9
W
7
0.9
W
7
0.8
W
7
0.8
W
7
0.9
W
10
0.8
W
10
0.7
W
10
0.7
W
9
0.7
W
9
0.4
WSW
9
0.7
W
6
0.6
W
6
0.6
W
6
0.7
W
6
0.8
W
6
1
W
7
1.2
W
7
1.5
W
7
1.5
W
7
1.2
W
7
1.1
W
7
Wave Graph
Metric surfscale
Energy kJ
77
77
61
62
151
120
88
81
78
26
32
24
24
34
49
89
138
199
205
134
120
Wind (km/h)
25
WSW
25
WSW
20
WSW
15
WSW
15
WSW
20
WSW
15
WSW
5
SSW
15
SW
20
WSW
20
W
20
WSW
20
SW
20
SW
25
SW
30
WSW
30
W
35
WNW
30
W
25
WNW
20
WNW
Wind State
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
8:43AM9.91m
9:00PM10.03m
9:18AM9.69m
9:35PM9.62m
9:52AM9.26m
Low Tide
2:47PM0.25m
3:06AM0.33m
3:19PM0.47m
3:36AM0.70m
3:50PM0.88m
light rain
light rain
light rain
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
clear
part cloud
part cloud
part cloud
cloud
light rain
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:46
6:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:34
7:31
7:29
 mm
2
1
1
1
Temp °C
18
18
18
18
18
18
18
18
19
18
19
19
19
18
18
17
16
16
16
16
16
Feels °C
16
16
17
18
18
17
18
20
19
17
17
18
17
16
14
13
11
10
10
12
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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