Surf Forecasts:
Llantwit Major surf forecast from 30 Jul 2026:
- Most powerful swell: Friday 31 Jul, 7PM (local time) - 2.5ft (0.8m), 4s period, W swell with 22 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 0.8m 4s and forecast to arrive on Friday (Jul 31) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Tuesday (Aug 04) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Fri 31st Jul) | 2.5ft (0.8m) 4s |
Table - best surf conditions forecast for Llantwit Major over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what’s on the menu for the next couple of weeks.
Honestly, I’m looking at a pretty lean stretch ahead. The first proper surf we’re looking at is on Thursday the 30th of July, and even then, it’s a real struggle. The whole outlook is a tough one—there are no true standouts, no days where you’d be racing to get your wetsuit on. We’ve got a long gap of poor conditions right through the first week and into the second.
For Llantwit Major, the swell is tiny and weak. The combined wave energy is barely a whisper, with a reading of just 16 on Thursday morning, and it just gets smaller from there. The wind is a problem from the get-go, blowing cross-onshore from the W at 12 mph, making for a choppy, bumpy mess. The water temp is about average for the time of year, nothing to write home about.
Moving into Friday the 31st, it’s more of the same. The wind stays up from the W and WNW, and the swell is still tiny, around 1 ft to 3 ft, with a period so short (4 to 5 seconds) it’s barely a wave. The energy is down in the 9 to 20 range. It’s a write-off for any decent surfing.
The weekend (August 1st and 2nd) offers no relief. Saturday has a bit of swell, but the wind is all wrong. Sunday morning actually cleans up a bit with a light E wind at 9 mph (cross-off), but the swell has dropped to just 1.0 ft (energy 14). It’s clean, but there’s nothing to ride.
The whole of the first week of August (from the 3rd to the 7th) is flat. The swell heights are a measly 0.3 ft to 1.0 ft, with wave energy completely bottoming out at 2 or 3. The wind is clean from the E and ENE, but it’s like trying to surf a lake. You’d be better off on a paddleboard.
The second week into mid-August stays small. From the 8th of August, the wind gets strong out of the ENE, hitting 25 mph on the 8th and 9th. That’s too strong for any meaningful surf anyway, with the swell still at 0.3 ft. The energy is virtually nothing (1 to 2). By the 11th, we see a tiny bump, up to 0.7 ft, with a bit more energy (6 to 7) and a longer period of 8 seconds, but it’s a very marginal improvement.
Towards the end of the outlook, around the 14th of August, we get a glimmer. The morning shows a 1.0 ft swell from the W with a period of 9 seconds and an energy of 15. The wind is light and cross-off from the ESE. It’s clean, but the swell is still below knee-high. It’s something to watch, but I wouldn’t get your hopes up.
In short, there’s nothing to get excited about here. The best "surf" is probably the cleanest, smallest days around the 3rd, 4th, 5th, or 6th of August, but you’ll be fighting for a ripple. The whole 16-day window is a quiet one. Forecasts can change, but for now, I’d give the boards a rest.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Thu afternoon, min 14°C on Thu night). Winds increasing (calm on Thu night, fresh winds from the W by Fri afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Mon afternoon, min 15°C on Sat night). Winds increasing (calm on Sun night, fresh winds from the ENE by Mon night). | ||||||||||||||||||||
Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | |||||||||||||||
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 5 | W 5 | W 4 | WNW 5 | WNW 4 | W 4 | W 6 | W 5 | WSW 9 | WSW 8 | WSW 8 | WSW 10 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | W 9 | W 9 | W 10 | W 10 | W 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 13 | 13 | 9 | 8 | 20 | 10 | 22 | 19 | 15 | 13 | 7 | 18 | 16 | 14 | 7 | 6 | 2 | 2 | 2 | 2 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-on | cross-on | cross | cross-on | cross-on | glassy | cross-off | cross | glassy | cross-off | cross-on | cross-off | cross-off | cross-on | cross-off | cross-off | cross-on | cross-on |
High Tide | 8:05AM8.58m | 8:22PM9.02m | 8:39AM8.86m | 8:56PM9.26m | 9:13AM9.02m | 9:30PM9.36m | 9:48AM9.05m | 10:05PM9.31m | 10:24AM8.95m | 10:42PM9.11m | 11:03AM8.71m | 11:23PM8.75m | 11:47AM8.34m | 00:10AM8.28m | |||||||
Low Tide | 2:17PM1.32m | 2:39AM1.15m | 2:49PM1.09m | 3:10AM0.98m | 3:19PM0.97m | 3:40AM0.92m | 3:49PM0.98m | 4:10AM0.97m | 4:21PM1.09m | 4:43AM1.14m | 4:57PM1.32m | 5:21AM1.43m | 5:39PM1.67m | ||||||||
 |  |  | | | | | |  | | | |  | | | | | | |  | | |
 | 5:33 | — | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — | 5:43 | — | — |
 | — | — | 9:05 | — | — | 9:04 | — | — | 9:01 | — | — | 9:00 | — | 8:59 | — | — | 8:57 | — | — | 8:54 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 18 | 19 | 17 | 17 | 17 | 16 | 17 | 17 | 15 | 20 | 24 | 22 | 24 | 25 | 20 | 21 | 20 | 17 | 18 | 18 | 16 |
Feels °C | 15 | 14 | 13 | 11 | 11 | 12 | 14 | 12 | 12 | 17 | 22 | 20 | 21 | 22 | 18 | 20 | 20 | 15 | 18 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 8 | W 4 | W 9 | — | W 4 | W 6 | WSW 9 | WNW 4 | WSW 8 | WSW 8 | WSW 10 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | SW 7 | SW 7 | W 7 | W 10 | W 11 |
| kJ | 2 | 1 | 9 | 1 | — | 10 | 22 | 8 | 6 | 13 | 7 | 18 | 16 | 14 | 7 | 6 | 2 | 2 | 1 | 2 | 2 |
Swell 2 Height (m) Direction Period (s) | W 8 | W 10 | W 8 | — | — | W 11 | W 10 | — | WSW 9 | W 4 | — | — | — | — | — | W 9 | W 9 | W 9 | W 10 | W 7 | W 6 |
| kJ | 1 | 2 | 1 | — | — | 2 | 8 | — | 15 | 1 | — | — | — | — | — | 2 | 2 | 2 | 2 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | W 9 | — | — | W 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 2 | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 5 | W 5 | — | WNW 5 | WNW 4 | — | — | W 5 | — | — | — | — | — | ENE 2 | E 3 | NE 3 | NNE 2 | ENE 3 | ENE 2 | NE 3 | NE 3 |
| kJ | 13 | 13 | — | 8 | 20 | — | — | 19 | — | — | — | — | — | 1 | 5 | 1 | 1 | 4 | 1 | 2 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 349 | 385 | 348 | 197 | 214 | 214 | 462 | 214 | 196 | 211 | 111 | 51 | 51 | 177 | 51 | 184 | 316 | 368 | 460 | 356 | 138 |
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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