Surf Forecasts:
Llantwit Major surf forecast from 5 Sep 2026:
- Best quality surf: Saturday 5 Sep, 10PM (local time) - 2ft (0.6m), 10s period, W swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 1PM (local time) - 5ft (1.5m), 13s period, W swell with 759 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 10PM (local time) - 2ft (0.6m), 10s 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 Saturday (Sep 05) at 10PM. The primary swell is predicted to be 0.6m and 10s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Llantwit Major in the next 16 days are 1.5m 13s and forecast to arrive on Monday (Sep 07) at 1PM. 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+) | 10PM (Sat 5th Sep) | 2ft (0.6m) 10s |
| Best Surf | 10PM (Sat 5th Sep) | 2ft (0.6m) 10s |
| Most Powerful | 1PM (Mon 7th Sep) | 5ft (1.5m) 13s |
Table - best surf conditions forecast for Llantwit Major over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s coming up for the next couple of weeks.
The short story is, we’re looking at a long, quiet stretch. The first real chance of anything worthwhile isn’t until the weekend of the 12th, so there’s a big gap of well over a week with nothing to get excited about. For the most part, the wind is going to be a real problem, mostly cross-onshore, which will keep things messy.
Let’s start with the main event. The standout is Llantwit Major, a point break that’s fairly consistent and exposed to the SW. The best bet looks like Saturday morning, September 12th. We’ve got a little waist-high swell, about 3ft, and the wind is swinging round to a light cross-offshore from the east at 6 mph. That’s going to clean things right up. The wave energy is weak (88), but it’s the cleanest window we get. That’s about as good as it gets in this run. Keep in mind though, this spot can get crowded at times.
The water temperature is about average for the time of year, so nothing weird to report there.
The rest of the 16-day window is pretty grim. Monday morning, September 7th, sees a pulse of chest-high swell (5ft) with a long period of 13 seconds (moderate energy at 694), but the wind is a nasty cross-onshore at 15 mph, making it a complete write-off for a point break. The longer period would normally be a bonus for a point, but not in that wind.
There’s a tiny window of clean conditions on the 12th and 13th, but the swell drops right off to knee-high or less. By the 14th, it’s flat. There’s a final chance of a glassy morning on the 20th, but the swell is barely a ripple (0.7ft, 4 energy). So, if you’re keen, circle that Saturday morning on the 12th. Everything else is a case of watching the forecast for changes.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Sun afternoon, min 14°C on Fri night). Winds increasing (calm on Sat night, fresh winds from the W by Mon morning). | Days 4-6 Weather SummaryModerate rain (total 11mm), heaviest on Mon night. Very mild (max 19°C on Thu morning, min 14°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 | W 6 | W 10 | WSW 9 | W 6 | W 8 | W 13 | W 12 | W 11 | W 10 | W 7 | W 7 | W 7 | W 7 | W 6 | W 7 | W 7 | W 8 | W 10 | W 9 | W 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 73 | 39 | 48 | 27 | 12 | 32 | 694 | 702 | 418 | 332 | 239 | 177 | 131 | 88 | 52 | 131 | 156 | 133 | 223 | 270 | 54 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross | cross-on | cross |
High Tide | 1:22PM7.29m | 2:08AM7.04m | 2:54PM7.08m | 3:43AM7.09m | 4:22PM7.49m | 5:00AM7.66m | 5:29PM8.25m | 5:58AM8.41m | 6:21PM9.04m | 6:46AM9.10m | 7:06PM9.68m | 7:28AM9.61m | 7:46PM10.08m | ||||||||
Low Tide | 6:38AM2.55m | 7:22PM2.74m | 8:10AM2.98m | 9:14PM2.89m | 10:04AM2.84m | 10:56PM2.41m | 11:26AM2.22m | 00:02AM1.68m | 12:22PM1.51m | 00:49AM0.99m | 1:05PM0.89m | 1:29AM0.48m | 1:42PM0.46m | 2:04AM0.20m | |||||||
 |  |  | | | | |  |  | |  | | | |  | | | | | | | |
 | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — |
 | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — | — | 7:45 | — | — | 7:43 | — | — | 7:40 | — | — | 7:38 | — |
mm | — | — | — | — | — | — | — | — | 5 | — | 1 | — | — | — | 4 | 1 | — | — | — | — | 4 |
Temp °C | 16 | 16 | 15 | 23 | 25 | 18 | 17 | 17 | 16 | 16 | 17 | 15 | 15 | 16 | 16 | 19 | 18 | 17 | 17 | 17 | 15 |
Feels °C | 14 | 13 | 15 | 20 | 22 | 17 | 12 | 12 | 11 | 9 | 10 | 10 | 9 | 10 | 12 | 16 | 14 | 14 | 11 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 6 | W 10 | WSW 9 | W 6 | W 8 | — | — | W 11 | — | — | — | — | — | — | W 7 | W 7 | W 8 | — | — | W 8 |
| kJ | 73 | 39 | 48 | 27 | 12 | 32 | — | — | 418 | — | — | — | — | — | — | 131 | 156 | 133 | — | — | 36 |
Swell 2 Height (m) Direction Period (s) | — | WSW 10 | — | — | W 9 | W 17 | — | — | — | — | — | — | — | — | — | W 12 | — | — | — | — | — |
| kJ | — | 31 | — | — | 6 | 6 | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | S 3 | — | W 13 | W 12 | W 11 | W 10 | W 7 | W 7 | W 7 | W 7 | W 6 | — | — | — | W 10 | W 9 | W 6 |
| kJ | — | — | — | — | 1 | — | 694 | 702 | 300 | 332 | 239 | 177 | 131 | 88 | 52 | — | — | — | 223 | 270 | 54 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 39 | 118 | 19 | 57 | 223 | 142 | 474 | 134 | 90 | 134 | 300 | 395 | 458 | 300 | 300 | 173 | 300 | 134 | 133 | 300 | 15 |
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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