Llantwit Major surf break

Llantwit Major surfForecast / Wales – South East / UK

information circle16 Day Weather and Surf, issued 12 pm Monday 13 Apr 2026 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
10.1° 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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Apr 13) at 10PM. The primary swell is predicted to be 0.6m and 10s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Llantwit Major in the next 16 days are 2.0m 15s and forecast to arrive on Thursday (Apr 16) at 7AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Monday (Apr 20) at 1PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Mon 13th Apr)2ft (0.6m) 10s
Best Surf 7PM (Thu 16th Apr)5ft (1.6m) 14s
Most Powerful 7AM (Thu 16th Apr)6.5ft (2.0m) 15s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 5mm), mostly falling on Wed afternoon. Very mild (max 14°C on Wed morning, min 6°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the WSW by Wed night).

Days 3-6 Weather Summary Mostly dry. Very mild (max 14°C on Fri morning, min 7°C on Sat night). Wind will be generally light.

Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
0
1
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.9
W
0.7
W
0.4
WSW
0.4
WSW
0.4
WSW
0.4
WSW
0.7
WSW
1.4
WSW
1.3
WSW
2
WSW
1.7
WSW
1.3
WSW
1
W
1
WSW
1.2
WSW
1.1
W
1
W
0.8
W
0.7
W
0.6
W
0.5
W
Period(s) (?)11111079891112151513121211111110101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)198110321725228844742216581275617294288356286233133967149
Wind
(km/h)
5
SE
10
WSW
10
SSE
25
SE
15
SE
15
SSE
30
S
25
WSW
30
WSW
20
SW
15
W
15
S
15
S
15
WSW
15
W
10
NW
20
WNW
15
NE
15
ENE
15
ENE
20
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crossoncross-
on
crosscrosscross-
on
cross-
on
cross-
on
ononcross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscrossoffcross-
off
cross-
off
cross-
off
High Tide
/ height (m)
4:50PM
7.13
5:12AM
7.73
5:37PM
7.96
5:56AM
8.56
6:19PM
8.78
6:37AM
9.34
6:59PM
9.50
7:18AM
9.94
7:39PM
10.02
7:58AM
10.30
8:19PM
10.28
8:40AM
10.35
9:00PM
10.23
Low Tide
/ height (m)
10:44AM
2.72
11:04PM
2.51
11:33AM
1.99
11:49PM
1.79
12:13PM
1.26
12:28AM
1.11
12:50PM
0.64
1:06AM
0.53
1:26PM
0.19
1:43AM
0.13
2:03PM
-0.02
2:21AM
-0.02
2:41PM
0.04
3:00AM
0.09
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Sunrise6:24--6:20--6:18--6:16--6:15--6:13--6:11--
Sunset-8:06--8:07--8:08--8:10--8:12--8:14--8:15-
clear
part cloud
rain showers
light rain
cloud
cloud
light rain
rain showers
part cloud
part cloud
cloud
part cloud
cloud
cloud
clear
clear
clear
clear
clear
part cloud
clear
Rain (mm)
--11--12-------------
Temp. °C10118101212141311131312141210121411121310
Feels °C (?)78659998491091197787885
  • 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 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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