Surf Forecasts:
Llantwit Major surf forecast from 13 Jul 2026:
- Most powerful swell: Tuesday 14 Jul, 1PM (local time) - 0.5ft (0.2m), 11s period, W swell with 9 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 0.2m 11s and forecast to arrive on Tuesday (Jul 14) at 1PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Monday (Jul 13) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Tue 14th Jul) | 0.5ft (0.2m) 11s |
Table - best surf conditions forecast for Llantwit Major over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here. Let’s be straight with you – this Llantwit Major outlook is a tough one. We’re looking at a solid 16 days of forecast, but honestly, there’s a massive gap right at the start. For the first 12 days, from Monday the 13th of July all the way through to Friday the 24th of July, the swell is virtually non-existent. We’re talking about ankle-snappers at best, with heights barely reaching 1 foot. The combined energy is a measly 1 to 18 (weak energy) for most of that stretch, so don’t even bother waxing up. The water is sitting at a very unusual 66.7°, which is a massive 7.4° warmer than normal for this time of year, so that’s weird, but it won’t help us get waves.
Now, things do finally start to look a little more interesting towards the end of the run. We’ve got a bit of a pulse showing up. On Saturday the 25th of July, the afternoon session sees the swell bump up to 2.3 feet from the west, with a period of 11 seconds. The combined energy jumps to 133 (moderate wave energy), which is something to work with. The wind is a moderate cross-onshore, so it’ll be a bit choppy, but it’s rideable. Then Sunday the 26th of July morning is probably your best bet in the whole window. We’ve got 2.6 feet from the west, a 10-second period, and the combined energy is 127 (moderate wave energy). The wind is a light cross-onshore, meaning it’ll be reasonably clean. It’s a point break here, so it should handle the west swell direction fine. It’s only an intermediate-level break, so don’t bring the groms unless they’re ready.
After that, the energy drops back off into the 20s and 30s for the remaining days, with messy onshore winds. Overall, it’s a flat spell with a tiny, promising window right at the very end. If you’ve got a longboard and a lot of patience, Sunday the 26th of July morning is the only real standout.
Short Range ForecastSome drizzle, heaviest during Wed night. Warm (max 30°C on Wed afternoon, min 14°C on Mon night). Winds decreasing (strong winds from the ENE on Mon morning, light winds from the WSW by Wed afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Thu afternoon, min 15°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
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 8 | W 8 | W 13 | W 11 | W 11 | W 10 | W 10 | W 9 | W 9 | W 10 | W 8 | W 9 | W 8 | W 8 | WNW 4 | W 8 | W 8 | W 8 | W 7 | W 9 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1 | 1 | 3 | 3 | 9 | 8 | 8 | 6 | 6 | 2 | 6 | 6 | 5 | 5 | 3 | 1 | 5 | 5 | 1 | 2 | 1 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | cross-on | off | cross-off | cross-on | cross-off | cross-off | cross-on | glassy |
High Tide | 6:42PM9.14m | 7:09AM9.23m | 7:33PM9.65m | 7:59AM9.57m | 8:22PM9.99m | 8:47AM9.71m | 9:08PM10.09m | 9:32AM9.63m | 9:53PM9.94m | 10:16AM9.34m | 10:37PM9.54m | 11:00AM8.88m | 11:20PM8.96m | ||||||||
Low Tide | 12:24PM1.39m | 00:57AM1.06m | 1:21PM0.97m | 1:52AM0.64m | 2:12PM0.65m | 2:42AM0.38m | 2:59PM0.50m | 3:28AM0.33m | 3:43PM0.55m | 4:11AM0.50m | 4:25PM0.78m | 4:53AM0.86m | 5:06PM1.17m | ||||||||
 | |  | | | | |  |  | |  | | | | | | | | | | | |
 | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — |
 | — | — | 9:25 | — | — | 9:24 | — | — | 9:23 | — | — | 9:22 | — | — | 9:22 | — | — | 9:21 | — | — | 9:20 |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 27 | 22 | 24 | 29 | 25 | 27 | 30 | 26 | 26 | 28 | 25 | 25 | 25 | 25 | 24 | 25 | 21 | 24 | 26 | 24 |
Feels °C | 13 | 22 | 16 | 20 | 26 | 22 | 24 | 28 | 25 | 23 | 26 | 25 | 24 | 21 | 23 | 22 | 21 | 18 | 22 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 13 | W 11 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | WNW 3 | WNW 4 | W 8 | WNW 4 | — | W 8 | W 8 | W 7 | W 7 | WNW 3 |
| kJ | 1 | 1 | 3 | 3 | 9 | 8 | 8 | 6 | 6 | 1 | 6 | 1 | 1 | 5 | 3 | — | 5 | 5 | 1 | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | W 8 | — | W 18 | — | — | — | — | W 10 | — | W 9 | W 8 | — | W 8 | W 8 | — | — | — | W 9 | W 8 |
| kJ | — | — | 1 | — | 6 | — | — | — | — | 2 | — | 6 | 5 | — | 1 | 1 | — | — | — | 2 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Wind waves Height (m) Direction Period (s) | NE 4 | NE 4 | NE 4 | NE 3 | NE 3 | ENE 2 | ENE 2 | ENE 2 | — | NE 2 | NE 3 | — | — | — | — | — | — | WNW 3 | — | — | — |
| kJ | 28 | 12 | 12 | 5 | 2 | 1 | 1 | 1 | — | 2 | 1 | — | — | — | — | — | — | 1 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 475 | 261 | 143 | 111 | 134 | 134 | 143 | 94 | 381 | 355 | 178 | 94 | 143 | 795 | 441 | 441 | 426 | 367 | 367 | 507 | 331 |
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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