Surf Forecasts:
Llantwit Major surf forecast from 23 Jul 2026:
- Most powerful swell: Sunday 26 Jul, 1PM (local time) - 4ft (1.2m), 7s period, W swell with 143 kJ wave energy.
Best Forecast Surf Conditions for Llantwit Major this week:
The most powerful waves expected at Llantwit Major in the next 16 days are 1.2m 7s and forecast to arrive on Sunday (Jul 26) at 1PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Sun 26th Jul) | 4ft (1.2m) 7s |
Table - best surf conditions forecast for Llantwit Major over the next 16 days.
The Lowdown
Right then, let’s have a look at the forecast for our stretch of coast. I’ll be honest with you, it’s a lean run. For the entire 16-day window, the numbers just aren’t there for a proper session. We’re looking at a long stretch of flat, small, and messy conditions, so don’t be in a rush to wax up.
Starting from the 23rd of July, it’s all very quiet. The swell is barely a whisper, with wave heights stuck at 0.3 ft to 1.0 ft for days on end. The combined energy is pitifully low, mostly in the single digits (2 to 30) – you’d be floating around more than surfing. The wind is often a problem too, with a lot of cross-on breezes gumming up the texture. Even the glassy mornings, like Thursday the 23rd morning and Friday the 24th morning, offer nothing to ride.
We get a tiny pulse on the 26th of July, Sunday, with the swell bumping up to 4 ft from the west. The combined energy finally climbs into three-digit territory (113 to 117), showing a bit of moderate energy. But the wind is cross-shore and the period is a short 7 seconds, so it’s going to be a messy, lumpy affair. It’s still classed as poor surf conditions. The same goes for the 2nd of August, with a 3 ft swell from the west and 76 combined energy, but again, the cross-on wind and short period (7 seconds) will wreck any chance of a clean wave.
The only real glimmer of hope, and it’s a faint one, is on the 3rd of August, Monday morning. We’ve got a cross-offshore wind from the east at 9 mph, and the guidance says the break is clean. But the swell is only 1 ft from the west with a combined energy of just 16. It’s ridable, but only just, and only for a longboard or a foiler. The best I can say is that if you’re desperate and the tide is right, you might get a few knee-high rolls.
There is no standout session here. The best on offer is that 3rd of August morning, but it’s a real scrappy option. For the rest of it, I’d save your energy and keep an eye on the charts. It tends not to stay this poor for long, so forecasts can change. For now, the setup looks more interesting for a kite than a paddle.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Thu afternoon, min 15°C on Thu night). Winds increasing (calm on Wed night, fresh winds from the W by Sat morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Tue morning, min 15°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 9 | W 9 | W 8 | W 8 | W 8 | WNW 4 | W 8 | W 4 | W 6 | W 7 | W 7 | W 7 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 11 | W 11 | W 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2 | 2 | 1 | 1 | 1 | 4 | 1 | 41 | 32 | 113 | 117 | 71 | 39 | 25 | 11 | 6 | 3 | 3 | 2 | 2 | 8 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | glassy | cross-on | cross | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 2:25PM6.77m | 3:01AM6.66m | 3:39PM6.64m | 4:16AM6.64m | 4:49PM6.82m | 5:19AM6.90m | 5:45PM7.21m | 6:10AM7.32m | 6:31PM7.70m | 6:52AM7.78m | 7:11PM8.20m | 7:30AM8.21m | 7:47PM8.65m | ||||||||
Low Tide | 7:55AM2.88m | 8:26PM3.06m | 9:00AM3.16m | 9:39PM3.21m | 10:15AM3.19m | 10:55PM3.07m | 11:25AM2.94m | 11:59PM2.72m | 12:21PM2.53m | 00:48AM2.27m | 1:05PM2.08m | 1:30AM1.82m | 1:43PM1.66m | 2:06AM1.44m | |||||||
 |  |  | | | | | |  | | |  | | | | | | | | | | |
 | 5:24 | — | — | 5:24 | — | — | 5:26 | — | — | 5:28 | — | — | 5:28 | — | — | 5:31 | — | — | 5:31 | — | — |
 | — | — | 9:15 | — | — | 9:14 | — | — | 9:13 | — | — | 9:10 | — | — | 9:09 | — | — | 9:07 | — | — | 9:07 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 24 | 20 | 20 | 21 | 18 | 18 | 18 | 17 | 18 | 20 | 17 | 19 | 19 | 16 | 21 | 21 | 17 | 20 | 20 | 17 |
Feels °C | 20 | 20 | 18 | 18 | 18 | 15 | 13 | 13 | 15 | 14 | 16 | 15 | 15 | 15 | 14 | 19 | 17 | 15 | 16 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | WNW 3 | W 8 | W 8 | W 8 | W 8 | — | W 6 | — | — | W 7 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 5 | W 10 | W 10 |
| kJ | 2 | 2 | 1 | 1 | 1 | 1 | 1 | — | 32 | — | — | 71 | 39 | 25 | 11 | 6 | 3 | 2 | 2 | 2 | 8 |
Swell 2 Height (m) Direction Period (s) | — | — | W 8 | — | — | — | — | — | — | — | — | — | — | — | W 8 | W 8 | W 8 | W 8 | W 8 | W 11 | — |
| kJ | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 6 | 1 | 1 | 1 | 1 | 2 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 11 | W 11 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | — | — |
Wind waves Height (m) Direction Period (s) | — | NW 2 | — | — | — | WNW 4 | WNW 2 | W 4 | — | W 7 | W 7 | — | — | — | — | — | — | — | — | WNW 2 | WNW 4 |
| kJ | — | 1 | — | — | — | 4 | 1 | 41 | — | 113 | 117 | — | — | — | — | — | — | — | — | 1 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 134 | 471 | 353 | 886 | 884 | 465 | 452 | 452 | 458 | 214 | 101 | 15 | 194 | 227 | 95 | 170 | 214 | 196 | 197 | 197 | 349 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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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