Surf Forecasts:
Llantwit Major surf forecast from 20 Jul 2026:
- Best quality surf: Monday 27 Jul, 1AM (local time) - 3ft (0.9m), 6s period, W swell with cross-offshore winds.
- Most powerful swell: Sunday 26 Jul, 7PM (local time) - 3.5ft (1.1m), 6s period, W swell with 100 kJ wave energy.
- Next surfable swell (1★+): Monday 27 Jul, 1AM (local time) - 3ft (0.9m), 6s period with W swell.
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 (Jul 27) at 1AM. The primary swell is predicted to be 0.9m and 6s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Llantwit Major in the next 16 days are 1.1m 6s and forecast to arrive on Sunday (Jul 26) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 4s period and expected on Tuesday (Jul 21) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 27th Jul) | 3ft (0.9m) 6s |
| Best Surf | 1AM (Mon 27th Jul) | 3ft (0.9m) 6s |
| Most Powerful | 7PM (Sun 26th Jul) | 3.5ft (1.1m) 6s |
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 the next couple of weeks. I’ll be honest with you, it’s a pretty quiet stretch for the most part, but there are a few moments that might just get you out of bed.
The first bit of any real interest doesn’t show up until Friday the 31st of July. Up until then, we’re looking at a long, flat spell. The water’s sitting at a very warm 69°, which is much warmer than usual for this time of year—feels more like a bath than the Atlantic, to be honest.
Alright, so your best bet, and really the only standout in this whole run, is Llantwit Major. The action kicks off on the morning of Friday the 31st. The wind swings easterly at 19 mph, which is a clean cross-offshore breeze, and we’ve got a 4ft swell from the west. The period is short at 8 seconds, so it’s not going to have much push, but combined energy is moderate at 208. It’s clean, but it’s a bit of a short-period windswell, so expect some lumpy, unshaped waves. It’s really only going to be for the keen and the experienced. That afternoon, the wind drops to 9 mph from the east, still cross-off, with the swell dropping to 3ft and energy at 133. It’s still surfable, but very ordinary. The crowds can show up here sometimes, so keep that in mind.
Saturday the 1st of August morning has a bit more of that easterly cross-off at 19 mph, but the swell drops right back to 2ft, with only 55 energy. It’s clean, but tiny. After that, the consistency goes and we’re back into small, choppy conditions for the rest of the run into early August.
So, if you’re desperate, Friday the 31st is your window. It’s not going to be classic, but it’s the best of a poor bunch. A blank run like this is more normal for the area, so don’t be too disheartened—forecasts can change.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Tue afternoon, min 14°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Thu afternoon, min 14°C on Sat night). Winds increasing (calm on Thu night, fresh winds from the W by Sat morning). | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
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 12 | W 11 | NW 4 | W 11 | W 10 | W 10 | W 10 | W 9 | NW 4 | W 9 | W 9 | W 8 | W 8 | W 8 | WNW 3 | W 8 | W 4 | W 6 | W 6 | W 6 | W 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3 | 2 | 4 | 2 | 2 | 8 | 7 | 7 | 4 | 2 | 2 | 1 | 1 | 2 | 2 | 1 | 9 | 31 | 42 | 76 | 64 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | cross-off | cross-on | glassy | glassy | cross-on | off | glassy | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross | cross | cross-off |
High Tide | 11:44AM8.32m | 00:05AM8.28m | 12:30PM7.73m | 00:54AM7.60m | 1:22PM7.18m | 1:51AM7.01m | 2:25PM6.77m | 3:01AM6.66m | 3:39PM6.64m | 4:16AM6.64m | 4:49PM6.82m | 5:19AM6.90m | 5:45PM7.21m | ||||||||
Low Tide | 5:48PM1.67m | 6:16AM1.89m | 6:34PM2.20m | 7:02AM2.43m | 7:25PM2.69m | 7:55AM2.88m | 8:26PM3.06m | 9:00AM3.16m | 9:39PM3.21m | 10:15AM3.19m | 10:55PM3.07m | 11:25AM2.94m | 11:59PM2.72m | ||||||||
 | |  | | | |  | | | | | | | |  | |  | | | | | |
 | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | 5:26 | — | — | 5:28 | — | — |
 | — | — | 9:19 | — | — | 9:17 | — | — | 9:15 | — | — | 9:15 | — | — | 9:14 | — | — | 9:13 | — | — | 9:10 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 20 | 23 | 24 | 22 | 21 | 23 | 22 | 22 | 24 | 21 | 22 | 22 | 18 | 18 | 17 | 17 | 19 | 21 | 17 |
Feels °C | 18 | 17 | 18 | 22 | 21 | 20 | 20 | 19 | 21 | 20 | 21 | 19 | 18 | 17 | 15 | 13 | 14 | 15 | 15 | 16 | 13 |
Swell 1 Height (m) Direction Period (s) | NW 4 | W 8 | NW 4 | NNW 4 | W 10 | WNW 4 | WNW 4 | NW 4 | NW 4 | NW 4 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | — | W 6 | — | — | W 6 |
| kJ | 1 | 1 | 4 | 2 | 2 | 1 | 2 | 1 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | — | 31 | — | — | 64 |
Swell 2 Height (m) Direction Period (s) | W 9 | W 11 | W 11 | W 11 | NW 4 | W 10 | W 10 | W 9 | W 9 | W 9 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 2 | 2 | 2 | 1 | 8 | 7 | 7 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | W 12 | — | W 8 | W 8 | W 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 2 | WNW 3 | WNW 3 | W 4 | — | W 6 | W 6 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 1 | 9 | — | 42 | 76 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 211 | 815 | 356 | 94 | 196 | 214 | 397 | 393 | 134 | 143 | 534 | 353 | 485 | 885 | 473 | 452 | 796 | 51 | 607 | 40 | 0 |
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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