Llantwit Major surf break

Llantwit Major surfForecast / Wales – South East / UK

information circle12 Day Weather and Surf, issued 12 am Monday 20 Oct 2025 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
15.0° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Llantwit Major this week:

The surf forecast for Llantwit Major over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Oct 22) at 1AM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 0.4m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Llantwit Major in the next 12 days are 3.0m 10s and forecast to arrive on Friday (Oct 24) at 4PM. 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+) 1AM (Wed 22nd Oct)3.5ft (1.0m) 9s
Best Surf 1AM (Wed 22nd Oct)3.5ft (1.0m) 9s
Most Powerful 4PM (Fri 24th Oct)10ft (3.0m) 10s

Table - best surf conditions forecast for Llantwit Major over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 19mm), heaviest on Mon morning. Very mild (max 14°C on Mon morning, min 11°C on Tue night). Winds decreasing (fresh winds from the W on Tue morning, calm by Tue night).

Days 3-6 Weather Summary Heavy rain (total 24mm), heaviest during Wed night. Very mild (max 12°C on Wed night, min 8°C on Thu morning). Winds increasing (calm on Wed night, near gales from the WSW by Fri afternoon).

Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sun
26
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
1
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.7
WSW
1.1
WSW
1.6
WSW
1.5
W
1.3
W
1.3
W
1
W
0.6
W
0.5
W
0.2
WSW
0.4
WSW
1.6
W
1.6
W
2.1
W
3
W
2.1
W
1.4
W
1.4
W
0.9
W
0.8
WNW
1
WNW
Period(s) (?)1110121110109881513779101087666
Wave
Graph
(?)Metric surfscale
Energy kJ (?)121270669553339314153452821582472536601655797266215604668
Wind
(km/h)
20
S
25
S
20
NW
25
W
30
WSW
25
W
5
W
0
SE
5
ESE
5
NW
50
NW
40
WNW
40
W
50
WSW
55
WSW
35
WNW
30
NW
35
NW
25
NW
25
NW
25
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
crosscross-
on
cross-
on
cross-
on
glassglassglassglasscrosscross-
on
cross-
on
cross-
on
cross-
on
crosscrosscrosscrosscrosscross
High Tide
/ height (m)
6:45AM
8.77
7:00PM
9.06
7:17AM
9.08
7:32PM
9.25
7:48AM
9.25
8:04PM
9.28
8:19AM
9.26
8:34PM
9.16
8:49AM
9.11
9:05PM
8.89
9:20AM
8.81
9:37PM
8.49
9:53AM
8.40
Low Tide
/ height (m)
12:43AM
1.27
12:55PM
1.22
1:11AM
1.01
1:23PM
0.96
1:37AM
0.86
1:50PM
0.83
2:04AM
0.85
2:19PM
0.85
2:32AM
0.98
2:48PM
1.03
3:01AM
1.25
3:18PM
1.35
3:30AM
1.63
3:49PM
1.79
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sun
26
Sunrise-7:45--7:47--7:48--7:50--7:52--7:52--7:54-
Sunset--6:10--6:08--6:07--6:05--6:02--6:00--5:59
rain showers
mod rain
rain showers
rain showers
rain showers
part cloud
part cloud
part cloud
cloud
rain showers
light rain
part cloud
rain showers
rain showers
rain showers
rain showers
cloud
part cloud
clear
part cloud
clear
Rain (mm)
58132----64-4343-----
Temp. °C1314141414141213131210111111121110108910
Feels °C (?)111011999912121102101432234
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Wales - South East

  1. weather stationWind Update Continuing clean conditions at Llantwit Major (light winds from the SSE at St Athan 5 km from Llantwit Major). 0.5m 6s windswell from the W with a 0.5m 3s local chop from the S and a 0.3m 10s swell from the W as well as a 0.3m 11s groundswell, also from the W. 4 swells combining to make bigger set waves.

    Llantwit Major
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1 h 11 min ago

9 km/h
SSE
Clean
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Llantwit Major surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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 12 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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