Surf Forecasts:
La Tranche sur Mer surf forecast from 28 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 8PM (local time) - 1.5ft (0.5m), 9s period, WNW swell with offshore winds.
- Most powerful swell: Tuesday 4 Aug, 5PM (local time) - 3.5ft (1.0m), 9s period, W swell with 145 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 8PM (local time) - 1.5ft (0.5m), 9s period with WNW swell.
Best Forecast Surf Conditions for La Tranche sur Mer this week:
The surf forecast for La Tranche sur Mer over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 29) at 8PM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.1m and 11s. Another secondary swell of 0.2m and 11s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at La Tranche sur Mer in the next 16 days are 1.0m 9s and forecast to arrive on Tuesday (Aug 04) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Thursday (Jul 30) at 8PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Wed 29th Jul) | 1.5ft (0.5m) 9s |
| Best Surf | 8PM (Wed 29th Jul) | 1.5ft (0.5m) 9s |
| Most Powerful | 5PM (Tue 4th Aug) | 3.5ft (1.0m) 9s |
Table - best surf conditions forecast for La Tranche sur Mer over the next 16 days.
The Lowdown
Alright, folks. Rusty here. Let's break down what’s in the water for the next couple of weeks.
Honestly, it’s a tough stretch. We’re looking at a long run of flat to tiny, weak waves for the first week and a half. From the 28th of July all the way through to the morning of the 10th of August, it’s all small stuff. The combined energy is mostly a weak two-digit number, barely cracking 100 (like 122 at best). We’re talking knee-high dribblers, with a lot of cross-off winds. Not worth the drive.
The water temp is about 69°F, which is right where it should be for this time of year.
We do have a couple of glassy mornings, like the 29th of July and the 5th of August, but the swell is just too small to do anything with – 1.0ft and 2ft. It’s a tease.
Now, the one real standout in this whole 16-day window is the session on the 11th of August. That Tuesday morning is looking spicy. We’ve got a solid 6ft swell pushing in from the WSW, with a period of 11 seconds. That’s a proper groundswell, which means clean lines. The combined energy is a massive 878 (moderate-strong), and the wind is light and offshore from the NW. That’s going to make for clean, glassy faces at La Tranche sur Mer. A word of caution, though – 6ft is pushing into the territory where it’s too big for beginners, and the afternoon gets a bit windy. But for the experienced surfer, the morning of the 11th is the clear winner. It’s a long way out, so the forecast might shift, but right now, that’s the one to circle on the calendar.
For the rest of the time? Honestly, it’s a waiting game. The swell just isn’t there. On the 4th of August we get a tiny pulse of 3ft, but it’s not enough to get excited about. It’s one of those periods where the kites might be more fun than the paddle boards.
So, to sum it up: a whole lot of flatness, with one very promising, but distant, day on the 11th of August. Keep an eye on that one.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Tue afternoon, min 17°C on Thu morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 29°C on Sat afternoon, min 17°C on Fri night). Mainly fresh winds. | |||||||||||||||||||
Tue 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | ||||||||||||||
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) | WNW 10 | W 9 | W 9 | WNW 9 | W 9 | W 10 | WNW 8 | WNW 5 | W 8 | WNW 7 | WNW 6 | WNW 7 | W 10 | WNW 5 | W 8 | W 8 | WSW 9 | WSW 8 | WSW 8 | W 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 75 | 27 | 15 | 26 | 14 | 17 | 22 | 13 | 10 | 10 | 27 | 10 | 17 | 18 | 23 | 51 | 29 | 23 | 23 | 45 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | on | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:24PM3.96m | 5:42AM3.82m | 5:52PM4.11m | 6:08AM3.92m | 6:17PM4.22m | 6:32AM3.98m | 6:41PM4.28m | 6:55AM4.01m | 7:05PM4.30m | 7:20AM4.02m | 7:32PM4.27m | 7:48AM3.99m | 8:03PM4.18m | |||||||
Low Tide | 11:18PM0.59m | 11:31AM0.55m | 11:56PM0.39m | 12:09PM0.37m | 00:33AM0.25m | 12:45PM0.26m | 1:09AM0.17m | 1:22PM0.23m | 1:46AM0.17m | 1:59PM0.26m | 2:23AM0.23m | 2:39PM0.37m | 3:04AM0.36m | |||||||
 |  | | | |  | | |  | | | | |  | | | | | | | |
 | — | — | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — |
 | — | 9:42 | — | — | 9:40 | — | — | 9:38 | — | — | 9:37 | — | — | 9:37 | — | — | 9:35 | — | — | 9:34 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 26 | 25 | 27 | 24 | 19 | 23 | 21 | 23 | 27 | 24 | 22 | 29 | 29 | 25 | 24 | 22 | 21 | 22 | 21 |
Feels °C | 26 | 22 | 24 | 24 | 20 | 19 | 20 | 17 | 22 | 23 | 18 | 19 | 25 | 23 | 22 | 22 | 18 | 19 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | W 9 | W 9 | W 11 | W 9 | WNW 5 | WNW 8 | WNW 5 | WNW 6 | WNW 7 | WNW 6 | WNW 7 | W 10 | WNW 5 | W 8 | W 8 | WSW 9 | WSW 8 | WSW 8 | W 9 |
| kJ | 75 | 27 | 15 | 9 | 14 | 8 | 22 | 13 | 6 | 10 | 27 | 10 | 17 | 18 | 22 | 22 | 29 | 23 | 23 | 45 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | W 11 | W 10 | WSW 5 | W 8 | W 8 | W 9 | W 9 | W 9 | WNW 7 | WSW 9 | W 8 | — | — | WNW 5 | — | W 6 |
| kJ | — | — | — | — | 2 | 17 | 2 | 6 | 10 | 6 | 2 | 6 | 10 | 16 | 23 | — | — | 8 | — | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | W 10 | W 10 | — | — | W 12 | W 11 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 8 | 2 | — | — | 3 | 2 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 10 | — | — | WNW 9 | NW 3 | W 5 | WNW 3 | WNW 5 | — | WNW 3 | N 3 | NNE 3 | WNW 6 | — | — | W 8 | WNW 4 | WNW 4 | W 4 | WNW 2 |
| kJ | 47 | — | — | 26 | 3 | 2 | 12 | 4 | — | 1 | 4 | 1 | 6 | — | — | 51 | 9 | 6 | 3 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 274 | 27 | 55 | 330 | 118 | 263 | 338 | 221 | 16 | 16 | 291 | 181 | 338 | 54 | 1 | 521 | 263 | 274 | 274 | 0 |
Best forecast wave conditions in Vendee | ||||||||||||||||||||
Best forecast wave conditions in France | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our La Tranche sur Mer surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the La Tranche sur Mer Surf forecast
The above surf forecast table for La Tranche sur Mer provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at La Tranche sur Mer can be found by selecting the local surf guide option on the grey menu. Our La Tranche sur Mer 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 (La Tranche sur Mer) 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 La Tranche sur Mer 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.
Are you planning a holiday in Vendee? If you are looking for accommodation near La Tranche sur Mer, camping, hotels and holiday cottages in Vendee, consider staying in La Pallice which is 29 km (18 miles) away. Other places in and around Vendee where you can find information about places to rent, and car hire include Les Sables-d'Olonne which is 30 km (19 miles) away, La Rochelle, La Roche-sur-Yon and Marans.
Nearest