Llantwit Major Surf Break

Lat Long: 51.39° N 3.50° W

Llantwit Major Surf Forecast and Surf Report

Issued: 12 am 17 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 17 Oct 2026:

  • Best quality surf: Wednesday 21 Oct, 10AM (local time) - 5ft (1.6m), 12s period, W swell with cross-offshore winds.
  • Most powerful swell: Friday 23 Oct, 7AM (local time) - 10ft (3.0m), 11s period, WSW swell with 2,432 kJ wave energy.
  • Next surfable swell (1★+): Saturday 17 Oct, 10AM (local time) - 2.5ft (0.7m), 12s period with W 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 Saturday (Oct 17) at 10AM. The primary swell is predicted to be 0.7m and 12s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Llantwit Major in the next 16 days are 3.0m 11s 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 0.8m 4s period and expected on Monday (Oct 19) at 4AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sat 17th Oct)2.5ft (0.7m) 12s
Best Surf10AM (Wed 21st Oct)5ft (1.6m) 12s
Most Powerful 7AM (Fri 23rd Oct)10ft (3.0m) 11s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Sun night. Very mild (max 14°C on Mon afternoon, min 8°C on Sat night). Mainly fresh winds.

Days 4-6 Weather Summary

Heavy rain (total 39mm), heaviest during Wed afternoon. Very mild (max 15°C on Thu afternoon, min 8°C on Wed afternoon). Winds increasing (calm on Tue afternoon, strong winds from the NW by Wed afternoon).

Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
1
0
0
0
0
0
1
1
1
0
3
0
0
0
0
0
0
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
W
12
0.6
W
11
0.5
W
11
0.4
WSW
10
0.3
WSW
10
0.3
W
10
0.2
W
17
0.3
W
15
0.4
WSW
13
0.4
WSW
13
0.4
WSW
12
0.4
WSW
11
1.6
W
12
2.1
W
8
1.5
W
8
1.3
W
8
1.3
W
8
1
W
9
2.5
W
11
1.9
W
11
1.8
W
9
Wave Graph
Metric surfscale
Energy kJ
134
91
61
37
20
18
23
41
60
54
48
38
748
555
284
187
203
157
1736
815
541
Wind (km/h)
15
NE
20
NE
15
NE
15
NNE
25
NE
20
NNE
25
E
25
ESE
10
ENE
15
NE
5
NE
20
SW
10
ESE
40
NW
35
WNW
10
WSW
20
SW
45
SSW
25
WSW
15
SSW
15
W
Wind State
off
off
off
cross-off
off
cross-off
cross-off
cross-off
cross-off
off
glassy
on
cross-off
cross
cross
cross-on
on
cross-on
on
on
cross-on
High Tide
11:06AM7.42m
11:30PM6.92m
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
Low Tide
4:42AM2.46m
5:10PM2.70m
5:30AM3.03m
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
clear
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clear
part cloud
rain showers
part cloud
part cloud
light rain
mod rain
light rain
clear
rain showers
heavy rain
rain showers
clear
rain showers
mod rain
light rain
light rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:39
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—
7:41
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7:43
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—
7:45
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—
7:47
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7:48
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7:50
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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6:16
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—
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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 mm
—
—
—
—
—
2
—
—
5
8
3
—
2
19
1
—
1
7
4
4
5
Temp °C
12
13
10
12
13
10
13
14
10
11
11
11
12
10
10
14
15
16
13
14
11
Feels °C
7
8
5
6
6
4
7
7
7
9
10
8
11
2
2
9
11
8
9
8
5
  • Map Icons:
  • Break
  • 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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