Surf Forecasts:
Llantwit Major surf forecast from 6 Aug 2026:
- Most powerful swell: Thursday 13 Aug, 7AM (local time) - 2.5ft (0.7m), 11s period, W swell with 110 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 0.7m 11s and forecast to arrive on Thursday (Aug 13) at 7AM. 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 | 7AM (Thu 13th Aug) | 2.5ft (0.7m) 11s |
Table - best surf conditions forecast for Llantwit Major over the next 16 days.
The Lowdown
Right then, let’s have a look at what’s on offer for Llantwit Major. To be honest, it’s a pretty tough stretch ahead. The first week or so is looking very flat and messy, with only a few tiny windows of hope much further out. We’re looking at a long gap of nothing really worth paddling out for until we get towards the middle of next week.
The water’s sitting at a balmy 70°F, which is a whopping 9°F warmer than usual for this time of year. That’s seriously unusual, like wearing a spring suit in a heatwave unusual.
Let’s start with the first real chance, which is Thursday morning, the 14th of August. The wind goes glassy from the SSE, which is a major positive. The swell is a tiny 2ft from the west, with a period of 9 seconds. The combined energy is only 57 (weak), so it’s small and weak. It’s a point break, so it might just about hold a tiny little wave, but it’s going to be very ordinary. You’ll get a clean little wave, but don’t expect any power. Crowds are possible here.
The next, and really the only standout, is Monday morning, the 17th of August. Again, glassy conditions with a light easterly breeze. The swell is a bit more promising at 3ft from the west, with an 8-second period. The combined energy is up to 112 (moderate), so there’s actually a bit of push behind it. For a point break like Llantwit Major, that west swell with glassy conditions could line up some nice clean lines. It’s the best of a pretty poor bunch, but it’s still only small. The water will still be much warmer than normal.
The rest of the forecast is plagued by onshore and cross-shore winds, keeping the surface lumpy and choppy. There’s really nothing else to get excited about. It’s a long wait for a couple of brief windows.
Rusty
Short Range ForecastMostly dry. Warm (max 21°C on Sat afternoon, min 14°C on Thu night). Winds decreasing (fresh winds from the W on Thu afternoon, calm by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Tue morning, min 16°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||
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 6 | W 6 | W 5 | W 9 | WNW 5 | W 4 | W 9 | W 9 | W 9 | W 8 | W 8 | WNW 4 | W 8 | WNW 5 | W 5 | W 8 | W 8 | W 12 | WSW 10 | W 9 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 60 | 44 | 13 | 7 | 5 | 3 | 2 | 2 | 6 | 1 | 1 | 5 | 1 | 5 | 4 | 5 | 5 | 11 | 33 | 63 | 76 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | cross-off | cross-on | cross-on | cross-on | cross | cross-on |
High Tide | 12:38PM7.88m | 1:08AM7.76m | 1:44PM7.46m | 2:23AM7.38m | 3:06PM7.31m | 3:49AM7.39m | 4:28PM7.62m | 5:05AM7.83m | 5:37PM8.28m | 6:07AM8.48m | 6:33PM9.03m | 7:00AM9.11m | 7:22PM9.68m | ||||||||
Low Tide | 6:32PM2.09m | 7:06AM2.27m | 7:40PM2.47m | 8:22AM2.60m | 9:07PM2.63m | 9:54AM2.59m | 10:43PM2.36m | 11:21AM2.18m | 00:00AM1.76m | 12:27PM1.56m | 00:59AM1.09m | 1:18PM0.96m | 1:46AM0.55m | ||||||||
 | |  | | | | |  | | | | | | | | | |  | | | | |
 | 5:43 | — | — | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — |
 | — | 8:53 | — | — | 8:52 | — | — | 8:50 | — | — | 8:47 | — | — | 8:45 | — | — | 8:45 | — | — | 8:43 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 15 | 17 | 17 | 15 | 20 | 21 | 20 | 23 | 22 | 20 | 23 | 22 | 20 | 25 | 25 | 20 | 22 | 23 | 19 |
Feels °C | 12 | 10 | 11 | 14 | 13 | 13 | 19 | 18 | 17 | 19 | 17 | 18 | 21 | 20 | 19 | 25 | 22 | 18 | 19 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 5 | W 5 | W 9 | W 4 | W 4 | — | W 9 | W 7 | W 8 | W 8 | W 3 | W 8 | W 5 | W 8 | W 8 | W 12 | WSW 10 | W 9 | W 9 |
| kJ | 2 | 2 | 13 | 2 | 2 | 3 | 1 | — | 6 | 1 | 1 | 1 | 1 | 1 | 4 | 5 | 5 | 11 | 33 | 63 | 76 |
Swell 2 Height (m) Direction Period (s) | — | — | W 10 | W 9 | — | W 9 | W 9 | W 9 | — | W 8 | W 6 | W 6 | W 8 | W 6 | W 8 | — | W 10 | W 8 | — | — | — |
| kJ | — | — | 7 | 7 | — | 2 | 2 | 2 | — | 1 | 1 | 1 | 1 | 1 | 1 | — | 2 | 4 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | W 6 | — | W 6 | W 10 | W 6 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | 2 | 1 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 6 | W 6 | — | — | WNW 5 | — | — | — | — | — | — | WNW 4 | — | WNW 5 | — | — | S 2 | — | — | — | W 3 |
| kJ | 60 | 44 | — | — | 5 | — | — | — | — | — | — | 5 | — | 5 | — | — | 1 | — | — | — | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 197 | 356 | 331 | 336 | 379 | 330 | 211 | 211 | 196 | 452 | 214 | 396 | 214 | 349 | 196 | 211 | 330 | 59 | 132 | 142 | 40 |
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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