Llantwit Major Surf Break

Lat Long: 51.39° N 3.50° W

Llantwit Major 48 hour detailed Surf Forecast

Issued: 6 am 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Llantwit Major sea temperature is
20.8° C
4.4° 

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 (20 Aug):

  • Morning surf: Morning surf (20 Aug, local time) - 4ft (1.2m), 8s period with W swell.
  • Afternoon surf: Afternoon surf (20 Aug, local time) - 4ft (1.2m), 7s period with W swell.
  • Evening surf: Evening surf (20 Aug, local time) - 3.5ft (1.0m), 6s period with W swell.

The current surf forecast for Llantwit Major at 12PM is: 1.2m 7s primary swell from a West direction (forecast issued at 06:00am August 20). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (20 Aug)4ft (1.2m)8s
Afternoon (20 Aug)4ft (1.2m)7s
Evening (20 Aug)3.5ft (1.0m)6s

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


Short Range Forecast

Light rain (total 4mm), mostly falling on Thu night. Very mild (max 19°C on Sat afternoon, min 12°C on Thu night). Winds decreasing (fresh winds from the WNW on Thu afternoon, calm by Fri morning).

Thursday
20
Friday
21
Saturday
22
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
1
1
1
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)
1.2
W
7
1.2
W
8
1.2
W
7
1.2
W
7
1.3
W
7
1.1
W
7
1
W
6
0.8
W
6
0.4
WSW
9
0.5
W
6
0.5
W
9
0.5
W
8
0.4
W
7
0.4
WNW
6
0.4
WNW
6
0.4
WNW
5
0.2
W
8
0.2
W
8
0.3
W
8
0.2
W
8
0.2
W
9
0.3
W
9
0.3
W
9
Wave Graph
Metric surfscale
Energy kJ
155
160
155
146
163
111
76
44
27
22
36
32
14
12
11
9
5
5
12
5
6
15
14
Wind (km/h)
20
W
20
WNW
25
WNW
30
WNW
30
WNW
25
WNW
10
N
10
N
10
NNE
5
NE
0
E
10
W
15
WNW
15
WNW
10
NNE
15
NE
15
ENE
10
ENE
5
ESE
10
WSW
20
W
15
NW
10
NW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
off
glassy
cross-on
cross-on
cross-on
cross-off
off
cross-off
cross-off
cross-off
cross-on
cross-on
cross
cross
High Tide
12:23PM7.20m
00:50AM6.85m
1:20PM6.59m
2:00AM6.30m
2:46PM6.24m
Low Tide
6:03AM2.46m
6:27PM2.74m
6:54AM3.07m
7:29PM3.29m
8:06AM3.51m
8:57PM3.57m
clear
part cloud
clear
part cloud
part cloud
part cloud
rain showers
clear
clear
clear
clear
rain showers
rain showers
rain showers
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:07
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:27
8:24
8:22
 mm
1
1
1
1
Temp °C
15
15
17
17
18
18
15
13
12
12
15
15
17
17
16
15
14
13
15
18
19
19
17
Feels °C
12
12
13
12
12
14
13
11
10
10
15
13
14
14
14
12
11
10
13
16
14
15
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 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Llantwit Major surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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