Surf Forecasts:
Llantwit Major surf forecast from 4 Aug 2026:
- Most powerful swell: Wednesday 5 Aug, 4PM (local time) - 4.5ft (1.4m), 7s period, W swell with 178 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 1.4m 7s 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) | 4.5ft (1.4m) 7s |
Table - best surf conditions forecast for Llantwit Major over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here, and I’ve got to be straight with you – this stretch is looking pretty bleak for the next 16 days. We’re looking at Llantwit Major, a point break that’s fairly consistent and exposed to southwest swells, but the charts are showing nothing but a long, frustrating run of poor surf conditions. The water’s sitting at a toasty 69°, which is a massive 8° warmer than normal for this time of year – that’s a very unusual spike, so don’t expect a chilly session.
The first week is a total write-off. From Tuesday, 4th August through to Monday, 11th August, we’ve got weak, short-period windswell with combined energy readings barely scratching 78 (weak energy), and the wind is almost always a cross-onshore mess, often from the west at 12 to 22 mph. The swell heights are tiny, peaking at just 5 ft on Wednesday afternoon, 5th August, but with a fresh cross-onshore wind and a lumpy sea state, it’s a choppy, sloppy mess. Even the glassy moment on Monday morning, 10th August, only delivers 2 ft of waist-high slop with a period of 5 seconds – not enough to get excited about.
Then there’s a gap of nearly two days of nothing before a flicker of hope on Thursday, 13th August. The morning brings glassy conditions with a 2 ft, 8-second swell from the west, and a combined energy of 66 (weak). The guidance calls it “surfable but very ordinary”. That’s the only real standout in the whole 16-day window, but it’s small, short-period, and the afternoon quickly turns into a fresh cross-onshore blowout. Friday, 14th August, offers a small chance with a light cross-shore wind and 2 ft, 9-second swell, but it’s nothing special.
After that, it’s back to the same old story: tiny waves, onshore winds, and poor conditions right through to Wednesday, 19th August. The combined energy rarely climbs above 86, and most days see swell under 3 ft. This isn’t a spot that’s going to deliver for paddle surfing – on the bigger, windier days, it’s more interesting for kite surfing than anything else. Hang in there, but don’t hold your breath.
Rusty
Short Range ForecastLight rain (total 3mm), mostly falling on Tue morning. Warm (max 22°C on Tue morning, min 13°C on Wed night). Winds decreasing (fresh winds from the W on Wed afternoon, light winds from the W by Thu night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Sat afternoon, min 14°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
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 7 | WSW 7 | WSW 6 | W 6 | W 7 | W 6 | W 6 | W 6 | W 5 | W 5 | W 9 | W 4 | W 9 | W 9 | WNW 4 | W 7 | W 7 | W 5 | W 5 | W 5 | WNW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 27 | 55 | 37 | 78 | 178 | 75 | 65 | 46 | 13 | 5 | 6 | 6 | 2 | 2 | 3 | 31 | 43 | 19 | 18 | 21 | 8 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | glassy | cross-on | off |
High Tide | 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 | 4:28PM7.62m | 5:05AM7.83m | 5:37PM8.28m | ||||||||
Low Tide | 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 | 9:54AM2.59m | 10:43PM2.36m | 11:21AM2.18m | 00:00AM1.76m | ||||||||
 |  |  |  |  |  | | | | | | | | | | | | | | | | |
 | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — |
 | — | 8:57 | — | — | 8:54 | — | — | 8:53 | — | — | 8:52 | — | — | 8:50 | — | — | 8:47 | — | — | 8:45 | — |
mm | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 18 | 17 | 17 | 16 | 16 | 17 | 15 | 18 | 18 | 16 | 17 | 19 | 17 | 19 | 19 | 17 | 20 | 22 | 21 |
Feels °C | 21 | 20 | 16 | 11 | 10 | 11 | 10 | 12 | 12 | 15 | 14 | 14 | 16 | 14 | 14 | 15 | 15 | 16 | 18 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | W 7 | — | — | — | — | W 11 | W 10 | W 10 | W 5 | W 5 | W 5 | W 9 | W 4 | W 9 | WNW 4 | W 7 | — | W 5 | W 8 | — | WNW 5 |
| kJ | 27 | — | — | — | — | 2 | 2 | 2 | 13 | 5 | 2 | 2 | 1 | 2 | 3 | 31 | — | 19 | 1 | — | 8 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 10 | W 9 | W 9 | — | W 9 | — | W 9 | W 8 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 7 | 2 | 6 | — | 2 | — | 2 | 5 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 2 | WSW 7 | WSW 6 | W 6 | W 7 | W 6 | W 6 | W 6 | — | — | — | W 4 | — | WNW 4 | W 4 | — | W 7 | — | W 5 | W 5 | — |
| kJ | 1 | 55 | 37 | 78 | 178 | 75 | 65 | 46 | — | — | — | 6 | — | 2 | 1 | — | 43 | — | 18 | 21 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 142 | 336 | 300 | 349 | 349 | 300 | 214 | 382 | 331 | 333 | 336 | 353 | 465 | 214 | 143 | 58 | 1436 | 57 | 198 | 418 | 196 |
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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