Llantwit Major Surf Break

Lat Long: 51.39° N 3.50° W

Llantwit Major 48 hour detailed Surf Forecast

Issued: 6 am 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's Llantwit Major sea temperature is
20.5°C
4.2° 

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 (29 Aug):

  • Morning surf: Morning surf (29 Aug, local time) - 1.5ft (0.4m), 6s period with WSW swell.
  • Afternoon surf: Afternoon surf (29 Aug, local time) - 2ft (0.6m), 6s period with W swell.
  • Evening surf: Evening surf (29 Aug, local time) - 4ft (1.2m), 5s period with W swell.

The current surf forecast for Llantwit Major at 1PM is: 0.4m 6s primary swell from a West-southwest direction and 0.3m 3s secondary swell from a South-southeast direction (forecast issued at 06:00am August 29). The wind direction is predicted to be onshore.

Time (BST) & DateWave HeightWave Period
Morning (29 Aug)1.5ft (0.4m)6s
Afternoon (29 Aug)2ft (0.6m)6s
Evening (29 Aug)4ft (1.2m)5s

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


Short Range Forecast

Heavy rain (total 26mm), heaviest during Sat morning. Warm (max 20°C on Sun morning, min 14°C on Sun night). Winds decreasing (fresh winds from the WSW on Sun night, light winds from the WSW by Mon night).

Saturday
29
Sunday
30
Monday
31
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
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
W
6
0.5
W
6
0.4
WSW
6
0.4
WSW
6
0.6
W
6
1.1
W
4
1.3
W
6
1.1
W
9
1
W
9
1
W
8
0.9
WSW
9
0.9
WSW
9
1.1
WSW
9
1.2
WSW
8
1.3
WSW
8
1.4
W
8
1.5
W
9
1.6
W
9
1.7
W
9
1.6
W
9
1.4
W
9
1.2
W
10
1
W
10
Wave Graph
Metric surfscale
Energy kJ
17
17
10
11
28
46
115
194
150
133
129
137
172
202
235
283
364
434
480
417
332
262
186
Wind (km/h)
20
SSW
20
SE
15
SE
15
SW
25
W
30
WNW
25
WNW
20
W
20
WSW
20
SW
20
SSW
20
SW
30
SW
25
SW
35
WSW
25
W
30
WNW
30
WNW
30
WNW
30
WNW
25
W
20
W
15
W
Wind State
cross-on
cross
cross
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
High Tide
8:13AM9.32m
8:29PM9.73m
8:47AM9.57m
9:04PM9.88m
9:22AM9.64m
9:39PM9.80m
Low Tide
2:12AM0.73m
2:21PM0.65m
2:40AM0.49m
2:50PM0.49m
3:09AM0.42m
3:20PM0.49m
cloud
light rain
mod rain
mod rain
light rain
part cloud
part cloud
clear
clear
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
cloud
cloud
cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:22
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:07
8:05
8:02
 mm
2
6
10
1
1
3
1
3
1
Temp °C
17
16
17
18
19
19
16
16
16
16
19
20
17
17
16
15
15
14
14
16
16
16
15
Feels °C
15
14
16
17
17
15
12
13
14
14
16
16
13
13
10
10
10
8
8
10
10
12
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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