Llantwit Major surf break

Llantwit Major surfForecast / Wales – South East / UK

information circle48hr Weather and Surf, issued 6 pm Tuesday 19 May 2026 BST
Forecast update in hr  min  s Forecast update imminent
Llantwit Major surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Llantwit Major sea temperature is
12.5° C
(Which is 1.0°C warmer than normal for this time of year)

How big are the waves at Llantwit Major today?

The current surf forecast for Llantwit Major at 10PM is: 1.6m 9s primary swell from a West-southwest direction (forecast issued at 06:00pm May 19). The wind direction is predicted to be onshore.

Time (BST) & DateWave HeightWave Period
Morning (19 May)--
Afternoon (19 May)4.5ft (1.3m)8s
Evening (19 May)5ft (1.6m)9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 5mm), mostly falling on Tue afternoon. Warm (max 21°C on Fri morning, min 12°C on Tue night). Winds decreasing (strong winds from the SW on Tue night, light winds from the SSE by Wed night).

Tue
19
Wednesday
20
Thursday
21
Fri
22
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
1 AM
4 AM
7 AM
10 AM
1 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.4
WSW
8
1.5
WSW
9
1.6
WSW
9
1.9
WSW
9
1.9
WSW
10
1.9
WSW
14
1.9
WSW
13
1.9
W
13
1.7
W
13
1.5
W
13
1.3
W
13
1.2
W
12
1
W
12
1
W
12
0.9
WSW
11
0.9
WSW
11
0.8
WSW
10
0.8
WSW
10
0.8
WSW
10
0.8
WSW
10
0.7
WSW
10
0.7
WSW
10
0.8
WSW
11
0.9
WSW
11
Wave Graph
Metric surfscale
Energy kJ
262
315
388
567
725
1470
1308
1264
987
764
556
418
284
279
217
194
147
136
131
133
102
100
158
170
Wind (km/h)
35
WSW
35
SW
40
SW
40
WSW
40
WSW
35
WSW
30
WSW
35
WSW
30
WSW
20
WSW
10
WSW
10
S
10
SSE
5
SSE
10
S
10
S
15
SSE
15
SSE
10
ESE
10
E
15
E
15
E
15
SE
20
SSE
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross
cross
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-on
High Tide
9:31PM9.82m
9:58AM9.37m
10:21PM9.36m
10:49AM8.76m
11:14PM8.78m
11:45AM8.10m
Low Tide
3:10PM0.61m
3:38AM0.62m
3:59PM1.02m
4:32AM1.09m
4:53PM1.53m
5:32AM1.61m
part cloud
rain showers
light rain
rain showers
light rain
rain showers
part cloud
part cloud
part cloud
clear
clear
cloud
cloud
cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:16
5:15
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:04
9:05
9:06
9:07
1
1
1
1
1
Temp °C
15
13
12
12
12
12
13
14
14
14
14
13
12
13
16
19
19
17
15
14
14
15
18
21
8
6
4
5
5
5
7
8
9
11
13
11
10
12
15
18
16
14
13
12
12
13
16
19
Swell 1
Height (m)
Direction
Period (s)
1.5
W
13
1.3
W
13
1.2
W
12
1
W
12
1
W
12
0.9
WSW
11
0.9
WSW
11
0.8
WSW
10
0.8
WSW
10
0.8
WSW
10
0.8
WSW
10
0.7
WSW
10
0.7
WSW
10
0.8
WSW
11
0.9
WSW
11
Energy kJ
764
556
418
284
279
217
194
147
136
131
133
102
100
158
170
Swell 2
Height (m)
Direction
Period (s)
Energy kJ
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
1.4
WSW
8
1.5
WSW
9
1.6
WSW
9
1.9
WSW
9
1.9
WSW
10
1.9
WSW
14
1.9
WSW
13
1.9
W
13
1.7
W
13
Energy kJ
262
315
388
567
725
1470
1308
1264
987
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
5
4
4
4
4
1
1
2
2
2
2
1
1
1
1
1
1
1
1
Distance (km)
321
321
321
394
431
300
300
401
142
142
21
21
19
19
21
21
15
44
0
0
0
0
28
28
Best forecast wave conditions in Wales - South East
Rating
(10 max)
2
2
2
2
1
1
1
1
1
Best forecast wave conditions in United Kingdom
Rating
(10 max)
1
1
2
3
2
1
2
2
4
4
4
4
4
3
2
2
3
3
2
3
3
3
3
3
Header Global
Rating
(10 max)
4
4
4
5
5
5
4
4
4
5
5
4
4
5
5
4
4
4
4
5
5
5
7
8
  • 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

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