Llantwit Major surf break

Llantwit Major surfForecast / Wales – South East / UK

information circle12 Day Weather and Surf, issued 11 am Monday 12 Jan 2026 GMT
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
6.9° C
(Which is 3.0°C colder than average 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 Wednesday (Jan 14) at 6AM. The primary swell is predicted to be 0.6m and 11s period with a secondary swell of 0.6m and 6s. 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 1.6m 15s and forecast to arrive on Saturday (Jan 17) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Saturday (Jan 17) at 9PM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Wed 14th Jan)2ft (0.6m) 11s
Best Surf 3PM (Thu 15th Jan)2.5ft (0.8m) 19s
Most Powerful12AM (Sat 17th Jan)5ft (1.6m) 15s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 5mm), mostly falling on Mon morning. Very mild (max 11°C on Mon morning, min 5°C on Tue night). Winds decreasing (fresh winds from the SW on Mon afternoon, calm by Tue night).

Days 3-6 Weather Summary Heavy rain (total 22mm), heaviest during Thu afternoon. Mild temperatures (max 8°C on Fri morning, min 5°C on Sat morning). Wind will be generally light.

Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
1
3
1
0
0
2
1
2
1
0
1
0
Swell
Height Map
Wave Height (m) & direction (?)
1.8
WSW
1.7
WSW
1.3
WSW
1.2
WSW
1.3
W
0.7
WSW
0.6
W
0.7
W
0.5
W
1.1
WSW
0.8
WSW
1.2
W
1.1
W
1.1
WSW
1.6
WSW
1.2
WSW
1
W
0.7
W
0.6
W
0.6
W
0.5
W
Period(s) (?)121211121111111312101916161515141312111110
Wave
Graph
(?)Metric surfscale
Energy kJ (?)85775444639741812883173762504667816125971077588350139868552
Wind
(km/h)
25
SSW
30
SW
20
SSW
20
SW
20
WNW
15
WNW
10
SSW
15
S
20
S
10
SSE
10
NNE
15
W
20
S
20
S
15
ESE
20
ENE
20
ENE
10
NE
5
WNW
5
WNW
10
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononononcrosscrosscross-
on
cross-
on
cross-
on
cross-
on
offcross-
on
cross-
on
cross-
on
cross-
off
cross-
off
offoffcrossglasscross
High Tide
/ height (m)
1:16PM
6.77
1:54AM
6.59
2:30PM
6.58
3:08AM
6.63
3:41PM
6.71
4:11AM
6.93
4:38PM
7.06
5:02AM
7.38
5:25PM
7.51
5:46AM
7.89
6:06PM
7.99
6:24AM
8.40
6:43PM
8.42
Low Tide
/ height (m)
7:21PM
3.05
7:54AM
3.19
8:30PM
3.19
9:09AM
3.20
9:43PM
3.09
10:20AM
2.95
10:47PM
2.77
11:17AM
2.54
11:38PM
2.34
12:04PM
2.08
12:20AM
1.89
12:44PM
1.65
12:57AM
1.49
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Sunrise8:14--8:14--8:12--8:11--8:11--8:11--8:10--
Sunset-4:29--4:30--4:31--4:34--4:35--4:37--4:37-
light rain
rain showers
part cloud
light rain
cloud
clear
cloud
cloud
light rain
light rain
heavy rain
rain showers
clear
light rain
rain showers
part cloud
part cloud
part cloud
cloud
cloud
cloud
Rain (mm)
11-1----23113-32------
Temp. °C1111101075668777887676667
Feels °C (?)555620213443433122442
  • 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 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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