Llantwit Major Surf Break

Lat Long: 51.39° N 3.50° W

Llantwit Major Surf Forecast and Surf Report

Issued: 6 am 03 Aug 2026 (local time)

Forecast update in  hr  min

Today's Llantwit Major sea temperature is
20.7° C
4.6° 

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 3 Aug 2026:

  • Most powerful swell: Wednesday 5 Aug, 1PM (local time) - 5ft (1.6m), 8s period, W swell with 298 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 1.6m 8s and forecast to arrive on Wednesday (Aug 05) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1PM (Wed 5th Aug)5ft (1.6m) 8s

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


The Lowdown

Alright, grab a coffee and listen up. It’s Rusty here, and I’ve been staring at the charts for our stretch of coast. I’ll be honest with you, it’s been a bit of a grim picture for the next couple of weeks, but there might be a little light at the end of the tunnel.

The long and short of it is that we’re in a real flat spell. Most of the coming days are looking pretty weak, with onshore winds messing up what little bump we have. The swell energy is often in the low double digits or just teetering on the edge of being noticeable. It's a lot of close-to-nothing surf.

Monday the 3rd and Tuesday the 4th are total right-offs. We’re looking at ankle-biters, maybe 1.3ft at best, and the wind is mostly cross-onshore or onshore, making things choppy and messy. The water temp is sitting at 69.3°F, which is a good deal warmer than normal for this time of year by 8.3°F – that’s pretty wild, keep the spring suit handy or maybe just a rashie.

We get a little pulse of energy mid-week. Wednesday the 5th sees the swell bump up to 5.2ft, but it’s coming with a strong cross-onshore wind of 22-25 mph. The energy reading jumps to 282, which is moderate, but the wind will just tear it to pieces. It’s big enough to be fun for the more experienced crew but messy with it. Not a day for beginners, that’s for sure. Thursday the 6th is similar, but smaller, around 3.6ft and still lumpy.

Then we drop back into the doldrums. From Friday the 7th through the following week, it’s just tiny, weak waves. There will be a few cleaner moments, especially on the 9th, 10th, and 11th when the wind goes light or offshore. The swell will be tiny, maybe 0.3ft to 2ft, but at least the surface will be glassy or clean, which is something. The energy readings are often below 20, showing just how weak it is. This is a stretch of several days where you’re really just hoping for a push.

We do see something more interesting start to brew for the second weekend. On Sunday the 16th and Monday the 17th, the swell shows a jump to 3.9ft-4.9ft, and the energy readings get into the strong zone, hitting 124 and 233. The wind is looking like light offshore or cross-shore from the east/southeast, which means it could clean up nicely. This looks like the standout of the period. Our spot, Llantwit Major, is a point break that loves a southwest swell, and seeing some size with clean conditions is promising. Because the period is short, it's not a huge-groundswell event, but it’s the most surfable we’ve seen in a long while. It might be a bit much for total beginners, but for the rest of us, it could be a fun few sessions. This is a long-range call, so don't book the time off just yet, but it’s definitely the one to watch.

After that, it fades away again quickly, dropping back to nothing by the 18th. So, overall, it’s a bleak outlook for a while, but that pulse around the 16th and 17th is the one to keep an eye on. It won't stay poor forever.

Short Range Forecast

Light rain (total 2mm), mostly falling on Tue afternoon. Warm (max 26°C on Mon afternoon, min 13°C on Wed night). Winds increasing (calm on Mon night, fresh winds from the W by Wed afternoon).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 18°C on Fri morning, min 14°C on Thu night). Winds decreasing (fresh winds from the W on Thu afternoon, calm by Thu night).

Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
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)
0.4
WSW
9
0.4
WSW
9
0.3
WSW
8
0.4
WSW
7
0.7
WSW
6
0.8
WSW
6
1.6
W
8
1.6
W
7
1.1
W
6
1.1
W
7
1.1
W
6
0.6
W
5
0.4
W
5
0.4
W
5
0.4
W
4
0.5
W
5
1
W
5
0.9
W
7
0.6
W
6
0.4
W
6
0.2
W
8
Wave Graph
Metric surfscale
Energy kJ
25
25
14
18
43
53
282
260
100
104
89
20
8
8
6
12
58
71
26
12
5
Wind (km/h)
15
E
15
W
5
WSW
20
SW
25
W
30
WSW
35
W
40
W
20
WNW
25
WNW
30
W
15
NW
10
WSW
20
WNW
15
WNW
15
W
30
W
10
WNW
0
SW
15
W
5
N
Wind State
cross-off
cross-on
glassy
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
glassy
cross-on
glassy
High Tide
10:24AM8.95m
10:42PM9.11m
11:03AM8.71m
11:23PM8.75m
11:47AM8.34m
00:10AM8.28m
12:38PM7.88m
1:08AM7.76m
1:44PM7.46m
2:23AM7.38m
3:06PM7.31m
3:49AM7.39m
4:28PM7.62m
Low Tide
4:21PM1.09m
4:43AM1.14m
4:57PM1.32m
5:21AM1.43m
5:39PM1.67m
6:07AM1.83m
6:32PM2.09m
7:06AM2.27m
7:40PM2.47m
8:22AM2.60m
9:07PM2.63m
9:54AM2.59m
10:43PM2.36m
part cloud
part cloud
part cloud
part cloud
rain showers
part cloud
part cloud
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:39
5:41
5:43
5:43
5:46
5:47
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:59
8:57
8:54
8:53
8:52
8:50
8:47
 mm
2
Temp °C
24
26
19
22
22
19
17
17
16
16
16
15
18
18
16
17
18
16
21
22
20
Feels °C
22
23
17
20
19
16
10
9
10
10
10
12
15
14
13
15
13
14
20
19
18
  • 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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