Llantwit Major Surf Break

Llantwit Major Surf Forecast and Surf Report

Lat Long: 51.39° N 3.50° W

Issued: 12 pm 20 Jun 2026 (local time)

Forecast update in  hr  min

Today's Llantwit Major sea temperature is
16.0° C

2.4°C warmer than normal for this time of year

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


Llantwit Major surf forecast from 20 Jun 2026:

  • Most powerful swell: Saturday 20 Jun, 4PM (local time) - 1.5ft (0.5m), 8s period, W swell with 30 kJ wave energy.

Best Forecast Surf Conditions for Llantwit Major this week:

The most powerful waves expected at Llantwit Major in the next 16 days are 0.5m 8s and forecast to arrive on Saturday (Jun 20) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Thursday (Jun 25) at 4PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4PM (Sat 20th Jun)1.5ft (0.5m) 8s

Table - best surf conditions forecast for Llantwit Major over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 27°C on Mon afternoon, min 14°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 33°C on Thu afternoon, min 20°C on Thu night). Winds increasing (calm on Tue night, fresh winds from the ENE by Thu night).

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
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
Wave
Height (m)
Direction
Period (s)
0.6
W
8
0.5
W
8
0.3
WSW
8
0.3
WSW
7
0.3
W
7
0.2
W
7
0.2
W
7
0.1
W
7
0.1
W
11
0.1
W
10
0.1
W
10
0.2
WSW
9
0.2
WSW
8
0.2
W
8
0.2
W
8
0.2
W
9
0.2
W
9
0.3
W
11
0.3
W
10
0.3
W
10
0.3
WSW
10
Wave Graph
Metric surfscale
Energy kJ
44
30
11
10
8
4
4
1
2
2
2
8
7
5
5
6
6
21
19
18
18
Wind (km/h)
10
W
15
WNW
5
W
10
E
5
ESE
10
ENE
20
E
15
ENE
15
E
20
E
10
SSE
0
NE
15
E
10
E
15
E
25
E
25
ESE
25
ENE
15
WNW
10
WNW
10
SSW
Wind State
cross-on
cross-on
glassy
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
High Tide
11:27AM8.48m
11:51PM8.63m
12:21PM7.95m
00:46AM8.07m
1:18PM7.50m
1:46AM7.58m
2:21PM7.20m
2:50AM7.27m
3:25PM7.10m
3:54AM7.17m
4:26PM7.19m
4:52AM7.26m
5:19PM7.41m
Low Tide
5:38PM1.58m
6:14AM1.65m
6:31PM2.00m
7:08AM2.06m
7:28PM2.37m
8:04AM2.41m
8:27PM2.64m
9:01AM2.63m
9:27PM2.77m
9:59AM2.70m
10:27PM2.73m
10:54AM2.64m
11:23PM2.57m
cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:56
4:56
4:56
4:56
4:56
4:58
4:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:34
9:34
9:34
9:34
9:34
9:34
9:34
 mm
Temp °C
17
17
16
19
23
23
23
27
25
26
29
26
27
31
29
29
33
26
19
22
20
Feels °C
15
14
14
18
24
24
22
27
26
27
30
28
28
34
31
27
31
23
18
22
20
Swell 1
Height (m)
Direction
Period (s)
0.6
W
8
0.5
W
8
0.3
WSW
8
0.3
WSW
7
0.3
W
7
0.2
W
7
0.2
W
7
0.1
W
7
0.1
W
7
0.1
W
10
0.1
W
10
0.2
WSW
9
0.2
WSW
8
0.2
W
8
0.2
W
8
0.2
W
9
0.2
W
9
0.3
W
11
0.3
W
10
0.3
W
10
0.3
WSW
10
Energy kJ
44
30
11
10
8
4
4
1
1
2
2
8
7
5
5
6
6
21
19
18
18
Swell 2
Height (m)
Direction
Period (s)
0.2
W
4
0.1
W
7
0.1
W
8
0.1
W
6
0.1
W
11
0.1
W
7
0.1
N
6
0.1
W
13
0.1
W
12
0.1
SW
4
Energy kJ
1
1
1
1
2
1
1
4
3
1
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
7
0.1
W
10
Energy kJ
2
2
Wind waves
Height (m)
Direction
Period (s)
0.3
ENE
2
0.2
ENE
2
0.4
ENE
2
0.6
ESE
3
0.3
ENE
2
Energy kJ
1
1
2
9
1
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
40
40
21
51
490
441
475
488
82
510
356
196
454
452
143
303
216
84
191
255
300
Best forecast wave conditions in Wales - South East
Rating
(10 max)
1
Best forecast wave conditions in United Kingdom
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
Header Global
Rating
(10 max)
5
4
9
5
7
5
7
5
5
5
6
7
6
5
5
7
5
5
6
9
4
  • 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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Information about the Llantwit Major Surf forecast

The above surf forecast table for Llantwit Major provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Llantwit Major can be found by selecting the local surf guide option on the grey menu. Our Llantwit Major surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Llantwit Major) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Llantwit Major may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Llantwit Major is 8 km (5 miles) from the city of Nash Point. If you plan a holiday in Wales - South East, look for hotels and other accommodation in Nash Point. Nash Point has rooms for a wide range of budgets as well as car hire and transport links.

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