Surf Forecasts:
Llantwit Major surf forecast from 2 Aug 2026:
- Most powerful swell: Wednesday 5 Aug, 4PM (local time) - 4ft (1.2m), 8s period, W swell with 177 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 8s and forecast to arrive on Wednesday (Aug 05) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Wed 5th Aug) | 4ft (1.2m) 8s |
Table - best surf conditions forecast for Llantwit Major over the next 16 days.
The Lowdown
Alright, Rusty here. Been staring at the charts for Llantwit Major and, well, I'm not gonna bury the lede. It's a tough outlook for the next couple of weeks. If you're living for open surf, you're going to be doing a lot of staring at flat lines.
Let's get real. For the first ten days or so, we're looking at very small, weak swell. Honestly, a lot of the time it’s barely going to be ridable. The wind is all over the place, too. We get a bit of a bump around August 8th, Saturday afternoon, where the swell ticks up to 5ft from the W, but that's packing a fresh cross-onshore wind that'll be lumpy and pretty ugly. That’s the biggest push we see, but the quality is just not there.
The real standout, if you can call it that, is what's happening around August 12th. On the Wednesday morning, we've got a small 1ft from the WSW with a 10-second period and a clean cross-offshore breeze from the E. That's the kind of wind you want. Then, get this, on the Wednesday afternoon, the wind drops to absolutely glassy, just a total calm. The swell is tiny at 2ft from the W, but if there's a ripple on the face, you'll see them. For the conditions, that is your best window for clean, small waves.
Following that, August 13th and 14th keep up a similar theme with clean morning breezes (E/ENE) and forgiving, small swell. We're talking about 2ft to 3ft from the W/WSW. Nothing big, but the clean wind will make it look so much better than the numbers suggest. And the water temp? It's 70°, which is over 7 degrees warmer than normal for this time of year. That’s very unusual. You can definitely get away without the 5/4 wetsuit.
But here's the thing. This isn't a spot that's offering us much power. The combined wave energy on even the best days barely cracks the 30s or 40s, and only hits 108 on August 15th Saturday afternoon when we see a 4ft from the WNW. Even then it's just moderate energy. The numbers just don't lie – there are no powerful, rippable swells on the charts.
So, what's the verdict? The best of the lot is the stretch from August 12th through the 14th. The glassy clean conditions on the 12th afternoon or the clean winds on the 13th and 14th mornings will offer you the best quality, even if the waves are small. For the rest of the month, just keep an eye on it. It's spotty and small, but the conditions can change. We'll see what happens.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Mon night. Warm (max 26°C on Mon afternoon, min 16°C on Sun night). Winds increasing (calm on Sun night, fresh winds from the WSW by Tue night). | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Fri night. Very mild (max 18°C on Wed afternoon, min 13°C on Wed night). Winds decreasing (strong winds from the W on Wed morning, calm by Thu night). | ||||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | |||||||||||||||
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) | WSW 8 | WSW 8 | WSW 10 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 4 | WSW 7 | WSW 7 | W 8 | W 7 | W 6 | W 6 | W 5 | W 5 | W 9 | W 5 | W 6 | W 6 | W 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 13 | 7 | 19 | 25 | 25 | 14 | 20 | 25 | 64 | 140 | 177 | 94 | 84 | 60 | 14 | 8 | 7 | 7 | 31 | 164 | 88 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | glassy | cross-off | cross-on | cross-on | on | cross-on | on | cross-on | cross-on | cross | cross | cross-on | cross | on | cross-on | cross-on | on | cross-on | cross |
High Tide | 10:05PM9.31m | 10:24AM8.95m | 10:42PM9.11m | 11:03AM8.71m | 11:23PM8.75m | 11:47AM8.34m | 00:10AM8.28m | 12:38PM7.88m | 1:08AM7.76m | 1:44PM7.46m | 2:23AM7.38m | 3:06PM7.31m | 3:49AM7.39m | ||||||||
Low Tide | 3:49PM0.98m | 4:10AM0.97m | 4:21PM1.09m | 4:43AM1.14m | 4:57PM1.32m | 5:21AM1.43m | 5:39PM1.67m | 6:07AM1.83m | 6:32PM2.09m | 7:06AM2.27m | 7:40PM2.47m | 8:22AM2.60m | 9:07PM2.63m | ||||||||
 |  |  | | |  |  |  | | | |  | | | | | |  | | | | |
 | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:46 | — | — | 5:47 | — | — |
 | — | — | 9:00 | — | 8:59 | — | — | 8:57 | — | — | 8:54 | — | — | 8:53 | — | — | 8:52 | — | — | 8:50 | — |
mm | — | — | — | — | — | 1 | 1 | — | 1 | 1 | — | — | — | — | — | — | — | 9 | 9 | — | — |
Temp °C | 21 | 24 | 19 | 24 | 26 | 19 | 22 | 21 | 18 | 17 | 18 | 17 | 16 | 16 | 15 | 17 | 18 | 16 | 17 | 17 | 16 |
Feels °C | 18 | 22 | 17 | 22 | 24 | 16 | 20 | 18 | 15 | 11 | 12 | 13 | 10 | 10 | 12 | 14 | 14 | 14 | 14 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 8 | WSW 8 | WSW 10 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | — | WSW 7 | — | — | — | — | W 10 | W 5 | W 5 | W 9 | W 5 | W 9 | — | W 7 |
| kJ | 13 | 7 | 19 | 25 | 25 | 14 | 20 | — | 64 | — | — | — | — | 2 | 14 | 8 | 7 | 7 | 2 | — | 88 |
Swell 2 Height (m) Direction Period (s) | W 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | W 10 | W 9 | W 9 | W 9 | — | — | — |
| kJ | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 7 | 2 | 6 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SW 2 | WSW 4 | SSW 3 | WSW 7 | W 8 | W 7 | W 6 | W 6 | — | — | W 5 | — | W 6 | W 6 | — |
| kJ | — | — | — | — | — | — | 1 | 25 | 1 | 140 | 177 | 94 | 84 | 60 | — | — | 5 | — | 31 | 164 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 452 | 196 | 51 | 21 | 58 | 154 | 142 | 300 | 215 | 349 | 349 | 40 | 214 | 300 | 184 | 336 | 393 | 336 | 170 | 88 | 15 |
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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