Llantwit Major Surf Break

Lat Long: 51.39° N 3.50° W

Llantwit Major 48 hour detailed Surf Forecast

Issued: 12 pm 18 Jul 2026 (local time)

Forecast update in  hr  min

Today's Llantwit Major sea temperature is
20.2° C
4.7° 

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 (18 Jul):

  • Morning surf: Morning surf (18 Jul, local time) - 0.5ft (0.2m), 4s period with WNW swell.
  • Afternoon surf: Afternoon surf (18 Jul, local time) - 0.5ft (0.1m), 8s period with W swell.
  • Evening surf: Evening surf (18 Jul, local time) - 1.5ft (0.4m), 3s period with NW swell.

The current surf forecast for Llantwit Major at 5PM is: 0.1m 8s primary swell from a West direction and 0.1m 4s secondary swell from a Northwest direction (forecast issued at 12:00pm July 18). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (18 Jul)0.5ft (0.2m)4s
Afternoon (18 Jul)0.5ft (0.1m)8s
Evening (18 Jul)1.5ft (0.4m)3s

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


Short Range Forecast

Mostly dry. Warm (max 23°C on Sat afternoon, min 13°C on Sat night). Wind will be generally light.

Sat
18
Sunday
19
Monday
20
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
W
8
0.1
W
8
0.1
W
8
0.1
W
8
0.4
NW
3
0.4
WNW
4
0.4
NW
4
0.2
WNW
4
0.1
W
8
0.1
W
7
0.1
W
7
0.1
W
7
0.1
W
7
0.1
W
7
0.1
W
9
0.1
W
9
0.1
W
12
0.1
W
11
0.1
W
11
0.1
W
11
0.4
NW
4
Wave Graph
Metric surfscale
Energy kJ
1
1
1
1
3
8
5
2
1
1
1
1
1
1
2
2
3
2
2
2
3
Wind (km/h)
10
ESE
10
SW
15
W
20
NW
25
ENE
20
ENE
20
ENE
15
ENE
15
E
10
SSW
15
W
15
W
15
NW
15
E
15
ENE
15
ENE
10
E
10
WSW
20
W
20
WNW
15
NW
Wind State
cross-off
on
cross-on
cross
off
cross-off
cross-off
cross-off
cross-off
on
cross-on
cross-on
cross
cross-off
off
cross-off
cross-off
cross-on
cross-on
cross-on
cross
High Tide
10:16AM9.34m
10:37PM9.54m
11:00AM8.88m
11:20PM8.96m
11:44AM8.32m
Low Tide
4:25PM0.78m
4:53AM0.86m
5:06PM1.17m
5:34AM1.34m
5:48PM1.67m
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
cloud
cloud
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:16
5:18
5:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:21
9:20
9:19
 mm
Temp °C
19
21
22
23
21
18
14
13
16
20
20
21
20
18
15
14
18
21
21
22
20
Feels °C
18
19
19
19
16
14
10
9
13
17
17
18
17
15
11
11
16
18
16
19
18
  • 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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