Surf Forecasts:
La Tranche sur Mer surf forecast from 13 Jul 2026:
- Most powerful swell: Wednesday 15 Jul, 5PM (local time) - 2ft (0.6m), 10s period, W swell with 69 kJ wave energy.
Best Forecast Surf Conditions for La Tranche sur Mer this week:
The most powerful waves expected at La Tranche sur Mer in the next 16 days are 0.6m 10s and forecast to arrive on Wednesday (Jul 15) 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 5s period and expected on Saturday (Jul 18) at 11PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Wed 15th Jul) | 2ft (0.6m) 10s |
Table - best surf conditions forecast for La Tranche sur Mer over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cooking for the next couple of weeks.
Well, I’m not gonna sugarcoat it – the first two weeks of this forecast are a tough slog. From the 13th of July right through to the 25th, we’re looking at a proper flat spell. There’s barely a wave worth paddling for, and the combined energy readings are mostly in the single or low double digits, which is about as weak as it gets. The wind is mostly cross-off or just plain wrong, and the swell is tiny. You’re better off cleaning the wax off your board or going for a jog. That’s a solid 13-day gap of nothing.
Then, just when you’re about to give up hope, the 26th of July (Sunday) shows up. It’s not a world-beater, but it’s the only real standout in the whole window. La Tranche sur Mer itself is the spot. The morning on the 26th is where it’s at – we’ve got a clean 0.9m swell rolling in from the west, which is about 3 ft. With a period of 12 seconds, that’s a proper groundswell, and it’ll have some shape to it. The combined energy hits 261, which is moderate energy with a bit of push. The absolute best part is the wind: glassy. Nothing else matters when it’s that clean. The swell direction (WSW) is a solid match for the optimum. This is a beach/jetty setup, so a long-period swell like this might want to straighten out a bit, but with glassy conditions, it’s the best shot you’ll have. The water is a notable 2.8° warmer than usual for this time of year, so it’s a pleasant 72.1°F.
The 28th of July (Tuesday) afternoon gets a bit of a mention, too. It’s a bit bigger, with 1.3m swell from the west, which is about 4.3 ft, and the combined energy is up to 354. The wind is offshore and fresh, which will clean it up. But here’s the catch – that 1.3m, with only 8-second period, is a bit of a lumpy windswell. It’s reportedly too big for the break, so it’s probably one for the more experienced crew only. The morning of the 28th is a write-off with cross-shore winds.
So, the long and short of it is: the surf is dead for nearly two weeks, then we get a little pulse. The 26th morning is your best bet. Go for it.
Short Range ForecastSome drizzle, heaviest during Wed morning. Warm (max 28°C on Tue night, min 21°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 29°C on Sat night, min 19°C on Fri night). Winds decreasing (fresh winds from the WNW on Thu night, calm by Fri night). | ||||||||||||||||||||
Mon 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | WSW 6 | W 6 | WSW 5 | W 12 | W 11 | W 10 | W 10 | W 4 | W 9 | W 10 | WSW 8 | W 9 | W 8 | W 8 | W 4 | W 8 | WNW 5 | W 8 | W 8 | W 10 | WNW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 41 | 18 | 8 | 11 | 9 | 8 | 69 | 9 | 14 | 7 | 14 | 6 | 6 | 5 | 6 | 5 | 10 | 5 | 5 | 2 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-on | cross-off | cross | cross | cross-off | cross | cross |
High Tide | 4:48PM4.35m | 5:22AM4.25m | 5:39PM4.56m | 6:12AM4.33m | 6:27PM4.68m | 6:59AM4.33m | 7:14PM4.67m | 7:44AM4.23m | 7:59PM4.55m | 8:28AM4.06m | 8:43PM4.32m | 9:13AM3.85m | 9:28PM4.01m | 10:00AM3.62m | |||||||
Low Tide | 10:53PM0.02m | 11:15AM0.08m | 11:45PM-0.20m | 12:04PM-0.08m | 00:35AM-0.31m | 12:52PM-0.15m | 1:22AM-0.29m | 1:38PM-0.10m | 2:08AM-0.15m | 2:23PM0.06m | 2:53AM0.09m | 3:09PM0.31m | 3:38AM0.41m | ||||||||
 |  | |  | |  | |  |  | | | | | | | | | | | | | |
 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 |
 | — | 9:55 | — | — | 9:54 | — | — | 9:54 | — | — | 9:53 | — | — | 9:52 | — | — | 9:52 | — | — | 9:51 | 9:50 |
mm | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 24 | 23 | 27 | 28 | 26 | 26 | 24 | 23 | 24 | 23 | 21 | 22 | 21 | 21 | 25 | 29 | 25 | 31 | 30 | 24 |
Feels °C | 22 | 22 | 23 | 24 | 24 | 25 | 24 | 22 | 24 | 25 | 20 | 20 | 21 | 19 | 22 | 23 | 24 | 20 | 26 | 24 | 18 |
Swell 1 Height (m) Direction Period (s) | WSW 6 | W 6 | WSW 5 | W 12 | W 11 | W 10 | — | W 4 | W 9 | W 8 | WSW 8 | W 9 | W 8 | W 8 | W 4 | W 8 | WNW 5 | W 8 | W 8 | W 8 | WNW 4 |
| kJ | 41 | 18 | 8 | 11 | 9 | 8 | — | 9 | 6 | 5 | 14 | 6 | 6 | 5 | 6 | 5 | 10 | 5 | 5 | 1 | 2 |
Swell 2 Height (m) Direction Period (s) | NW 8 | S 4 | W 12 | W 8 | W 7 | WNW 4 | — | W 9 | W 9 | W 10 | — | — | — | — | W 8 | W 8 | W 8 | WNW 5 | — | W 10 | W 7 |
| kJ | 3 | 1 | 3 | 1 | 1 | 2 | — | 6 | 14 | 7 | — | — | — | — | 5 | 1 | 1 | 2 | — | 2 | 1 |
Swell 3 Height (m) Direction Period (s) | — | W 14 | W 8 | — | W 7 | W 5 | — | — | W 6 | — | — | — | — | — | — | — | W 8 | — | — | — | W 8 |
| kJ | — | 4 | 1 | — | 1 | 1 | — | — | 1 | — | — | — | — | — | — | — | 1 | — | — | — | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | W 5 | NW 4 | — | W 10 | WSW 4 | W 5 | W 5 | W 4 | W 5 | W 5 | W 4 | — | W 3 | NNE 3 | E 3 | NW 2 | NNW 4 | — |
| kJ | — | — | — | 7 | 10 | — | 69 | 3 | 13 | 7 | 18 | 27 | 23 | 14 | — | 6 | 3 | 3 | 1 | 13 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 471 | 237 | 463 | 519 | 263 | 519 | 519 | 55 | 729 | 729 | 499 | 380 | 519 | 1163 | 662 | 794 | 744 | 700 | 773 | 237 | 313 |
Best forecast wave conditions in Vendee | |||||||||||||||||||||
Best forecast wave conditions in France | |||||||||||||||||||||
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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.
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