Llantwit Major surf break

Llantwit Major surfForecast / Wales – South East / UK

information circle12 Day Weather and Surf, issued 11 pm Thursday 04 Dec 2025 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
10.7° C
(Which is 1.1°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 (Dec 10) at 6AM. The primary swell is predicted to be 2.5m and 13s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Llantwit Major in the next 12 days are 4.0m 16s and forecast to arrive on Saturday (Dec 06) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Wed 10th Dec)8ft (2.5m) 13s
Best Surf 6AM (Wed 10th Dec)8ft (2.5m) 13s
Most Powerful 3PM (Sat 6th Dec)13ft (4.0m) 16s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 35mm), heaviest during Fri afternoon. Very mild (max 14°C on Sun morning, min 7°C on Thu night). Winds increasing (light winds from the WNW on Thu night, near gales from the SSE by Fri afternoon).

Days 3-6 Weather Summary Heavy rain (total 35mm), heaviest during Tue morning. Very mild (max 15°C on Tue morning, min 9°C on Wed morning). Winds increasing (light winds from the SSE on Mon night, strong winds from the WNW by Wed morning).

Friday
05
Saturday
06
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thu
11
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.4
W
1.3
W
0.8
W
2.4
WSW
3.5
WSW
4
WSW
2.5
W
1.6
W
1.8
WSW
1.5
W
0.8
WSW
0.6
WSW
1.7
WSW
1.6
WSW
1.7
WSW
3.5
WSW
2.4
WSW
2.5
W
1.8
W
1.4
W
1.3
WSW
Period(s) (?)14149111416161413121220181716141311111112
Wave
Graph
(?)Metric surfscale
Energy kJ (?)7807039913964823784730209901012604183298189515231358475618081466804501486
Wind
(km/h)
15
SW
20
SSE
55
SSE
45
SW
55
WSW
55
WSW
25
WSW
25
SE
30
SW
25
WSW
25
SW
15
SSW
25
S
40
SSW
40
SSW
45
SSW
45
WNW
35
W
15
S
25
S
30
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
cross-
on
oncross-
on
cross-
on
cross-
on
crossononononcross-
on
onononcrosscross-
on
cross-
on
cross-
on
cross
High Tide
/ height (m)
6:19AM
9.91
6:44PM
9.93
7:06AM
10.07
7:31PM
9.88
7:53AM
9.99
8:19PM
9.59
8:41AM
9.69
9:06PM
9.10
9:29AM
9.20
9:56PM
8.51
10:19AM
8.61
10:48PM
7.88
11:13AM
8.00
Low Tide
/ height (m)
12:01AM
0.52
12:26PM
0.37
12:48AM
0.43
1:15PM
0.30
1:35AM
0.52
2:04PM
0.45
2:23AM
0.78
2:53PM
0.79
3:11AM
1.18
3:45PM
1.24
4:02AM
1.64
4:39PM
1.74
4:56AM
2.12
5:36PM
2.20
Friday
05
Saturday
06
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thu
11
Sunrise-8:00--8:02--8:03--8:03--8:06--8:07--8:07-
Sunset--4:07--4:06--4:06--4:06--4:05--4:05--4:05
rain showers
cloud
mod rain
mod rain
light rain
rain showers
part cloud
mod rain
rain showers
part cloud
part cloud
light rain
mod rain
mod rain
mod rain
mod rain
rain showers
clear
part cloud
part cloud
part cloud
Rain (mm)
2-9831-93--199673----
Temp. °C891211111111141412121314151414111191211
Feels °C (?)3040002119771010871144565
  • 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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