Llantwit Major surf break

Llantwit Major surfForecast / Wales – South East / UK

information circle12 Day Weather and Surf, issued 6 am Saturday 19 Jul 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
19.3° C
(Which is 3.8°C warmer than normal for this time of year)


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 Sunday (Jul 20) at 10PM. The primary swell is predicted to be 0.7m and 8s period. 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 1.2m 8s and forecast to arrive on Monday (Jul 21) at 7PM. 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+)10PM (Sun 20th Jul)2.5ft (0.7m) 8s
Best Surf10PM (Sun 20th Jul)2.5ft (0.7m) 8s
Most Powerful 7PM (Mon 21st Jul)4ft (1.2m) 8s

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 12mm), heaviest on Sat night. Warm (max 20°C on Sat afternoon, min 15°C on Sun night). Winds increasing (calm on Sat morning, fresh winds from the W by Mon afternoon).

Days 3-6 Weather Summary Mostly dry. Very mild (max 18°C on Thu afternoon, min 14°C on Tue night). Wind will be generally light.

Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.6
W
0.5
W
0.4
WSW
0.3
WSW
0.8
WSW
0.7
W
0.7
W
0.9
W
1.1
W
1.2
W
1
W
0.5
W
0.7
W
1
W
0.9
W
0.9
W
0.6
W
0.6
W
0.7
W
0.7
W
0.7
W
Period(s) (?)88888910977666787678910
Wave
Graph
(?)Metric surfscale
Energy (?)48302315769793130103134762033102159732536647794
Wind
(km/h)
5
W
5
WSW
25
SE
25
SSE
20
S
10
NE
15
WNW
35
W
20
WNW
25
WNW
25
W
15
W
25
NW
30
WNW
15
WNW
10
WSW
10
WNW
10
W
20
W
25
W
20
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
oncrosscross-
on
cross-
on
offcross-
on
cross-
on
crosscross-
on
cross-
on
cross-
on
crosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
on
High Tide
/ height (m)
2:01PM
7.73
2:35AM
7.74
3:14PM
7.60
3:51AM
7.68
4:28PM
7.78
5:03AM
7.92
5:34PM
8.19
6:05AM
8.32
6:31PM
8.69
6:58AM
8.74
7:21PM
9.15
7:46AM
9.06
8:07PM
9.48
Low Tide
/ height (m)
8:00PM
2.21
8:39AM
2.26
9:16PM
2.36
9:56AM
2.34
10:37PM
2.25
11:14AM
2.17
11:52PM
1.91
12:21PM
1.81
12:54AM
1.48
1:16PM
1.42
1:45AM
1.10
2:02PM
1.10
2:29AM
0.84
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Sunrise5:18--5:20--5:20--5:22--5:24--5:24--5:26--
Sunset-9:20--9:19--9:17--9:15--9:15--9:14--9:13-
part cloudcloudrain showersrain showersthunderstorm part cloudrain showerspart cloudpart cloudcloudpart cloudclearpart cloudpart cloudpart cloudpart cloudpart cloudclearclearclearcloud
Rain (mm)
--524-1--------------
Temp. °C192017191816181816171716171715171817181818
Feels °C (?)192014141516161313131214121212161716151416
  • 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 NNW at St Athan 5 km from Llantwit Major). 0.4m 8s swell from the W

    Llantwit Major
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1 h 25 min ago

6 km/h
NNW
Clean
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

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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