Llantwit Major Surf Break

Lat Long: 51.39° N 3.50° W

Llantwit Major Surf Forecast and Surf Report

Issued: 6 am 18 Oct 2026 (local time)

Forecast update in  hr  min

Today's Llantwit Major sea temperature is
16.7°C
2.4° 

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 18 Oct 2026:

  • Best quality surf: Sunday 25 Oct, 9AM (local time) - 6.5ft (2.0m), 11s period, W swell with cross-offshore winds.
  • Most powerful swell: Friday 23 Oct, 7AM (local time) - 16ft (5.0m), 12s period, W swell with 6,575 kJ wave energy.
  • Next surfable swell (1★+): Monday 19 Oct, 10PM (local time) - 1.5ft (0.4m), 14s period with WSW swell.

Best Forecast Surf Conditions for Llantwit Major this week:

The surf forecast for Llantwit Major over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Oct 19) at 10PM. The primary swell is predicted to be 0.4m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Llantwit Major in the next 16 days are 5.0m 12s and forecast to arrive on Friday (Oct 23) at 7AM. 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 Monday (Oct 19) at 1PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Mon 19th Oct)1.5ft (0.4m) 14s
Best Surf 9AM (Sun 25th Oct)6.5ft (2.0m) 11s
Most Powerful 7AM (Fri 23rd Oct)16ft (5.0m) 12s

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


Short Range Forecast

Moderate rain (total 16mm), heaviest on Tue night. Very mild (max 15°C on Mon afternoon, min 9°C on Sun morning). Winds increasing (light winds from the NNW on Mon night, strong winds from the WSW by Tue night).

Days 4-6 Weather Summary

Heavy rain (total 44mm), heaviest during Thu night. Very mild (max 14°C on Thu morning, min 8°C on Thu night). Mainly stormy winds.

Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
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
1
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)
0.4
WSW
10
0.3
WSW
10
0.2
W
10
0.3
W
10
0.2
W
15
0.4
WSW
13
0.4
WSW
12
0.4
WSW
12
0.4
WSW
11
3.5
W
11
3
W
10
2.1
W
9
1.7
W
9
1.5
W
10
1.2
WSW
11
4.5
W
12
3.5
W
11
2.5
W
10
1.5
W
8
1.8
WSW
8
3
WSW
11
Wave Graph
Metric surfscale
Energy kJ
37
20
8
18
18
59
51
48
39
3145
1586
668
471
449
343
6086
2973
1227
277
428
2268
Wind (km/h)
20
NNE
25
NE
20
NNE
25
E
20
ESE
10
NE
10
WNW
15
WSW
35
S
60
WSW
55
W
35
W
30
W
25
WSW
55
SSE
70
W
60
W
55
W
55
WNW
60
WNW
45
WNW
Wind State
off
off
cross-off
cross-off
cross-off
off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
High Tide
11:55AM6.81m
00:28AM6.36m
1:07PM6.37m
1:56AM6.09m
2:43PM6.36m
3:30AM6.35m
4:01PM6.82m
4:33AM6.97m
4:54PM7.52m
5:19AM7.73m
5:37PM8.27m
5:59AM8.50m
6:16PM8.99m
Low Tide
6:11PM3.25m
6:43AM3.48m
7:44PM3.53m
8:24AM3.57m
9:19PM3.33m
9:48AM3.21m
10:26PM2.80m
10:46AM2.63m
11:14PM2.15m
11:30AM1.98m
11:53PM1.49m
12:08PM1.34m
00:28AM0.91m
clear
clear
rain showers
rain showers
part cloud
rain showers
rain showers
part cloud
mod rain
light rain
rain showers
rain showers
rain showers
cloud
heavy rain
rain showers
thunderstorm
mod rain
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:41
—
—
7:43
—
—
7:45
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—
7:47
—
—
7:48
—
—
7:50
—
—
7:52
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—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
6:15
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—
6:13
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—
6:10
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—
6:08
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6:07
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6:05
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6:02
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 mm
—
—
2
1
—
3
2
—
8
5
3
8
1
—
13
5
2
7
—
—
—
Temp °C
13
13
11
13
15
11
12
13
13
10
12
12
14
13
14
10
10
10
11
11
11
Feels °C
7
6
6
6
9
8
9
9
7
-3
0
6
7
7
4
-5
-3
-1
-2
-2
1
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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