Surf Forecasts:
La Tranche sur Mer surf forecast from 4 Jul 2026:
- Best quality surf: Sunday 5 Jul, 5PM (local time) - 1.5ft (0.5m), 10s period, W swell with offshore winds.
- Most powerful swell: Saturday 4 Jul, 8PM (local time) - 3ft (0.9m), 10s period, WNW swell with 180 kJ wave energy.
- Next surfable swell (1★+): Sunday 5 Jul, 5PM (local time) - 1.5ft (0.5m), 10s period with W 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 Sunday (Jul 05) at 5PM. The primary swell is predicted to be 0.5m and 10s period with a secondary swell of 0.2m and 10s. 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 0.9m 10s and forecast to arrive on Saturday (Jul 04) at 8PM. Winds are predicted to be 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 Friday (Jul 10) at 8PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sun 5th Jul) | 1.5ft (0.5m) 10s |
| Best Surf | 5PM (Sun 5th Jul) | 1.5ft (0.5m) 10s |
| Most Powerful | 8PM (Sat 4th Jul) | 3ft (0.9m) 10s |
Table - best surf conditions forecast for La Tranche sur Mer over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, this is Rusty checkin’ in from the coast. We got a long stretch ahead, so let’s get into it.
Right off the bat, gotta be honest with ya—this 16-day run for La Tranche sur Mer is a tough one. We’re lookin’ at a real dry spell for any decent surf. The first recommendation doesn’t show up till Tuesday the 14th of July, and even then it’s pretty ordinary. Before that, from Saturday the 4th all the way through to Monday the 13th, it’s just poor conditions day after day—small weak swell, messy winds, and hardly any energy. The water temp on Saturday the 4th mornin’ was 72°, which is much warmer than usual for this time of year (anomaly of 5°), so that’s a real standout for the weird side.
Now, on Tuesday the 14th of July, things finally change a bit. The morning brings a small 1 ft swell from the W with a period of 11 seconds—that’s a longer period, so more shape and energy even if it’s small. Combined energy is 55 (weak), but the wind is offshore from the WNW at 9 mph, so it’s clean. This is about as good as it gets in this outlook, but it’s still pretty ordinary. Not a standout for thrills, just a session to wet the board.
Then Wednesday the 15th of July morning—this is the best on offer. Glassy conditions, no wind, with a 2 ft swell from the W, period 10 seconds, and combined energy of 138 (moderate). That’s clean, small, and rideable. It’s a short window though, and the afternoon gets chopped again by WNW cross-off breeze at 16 mph.
After that, Thursday the 16th of July morning has a light 3 mph cross-off wind and a 1 ft swell from the W. It’s barely surfable but clean. The rest of the period from Friday the 17th onward is just more of the same—small, weak, and ordinary. No real standouts after Wednesday the 15th.
So yeah, if you’re in La Tranche sur Mer, aim for Wednesday the 15th of July morning when it’s glassy and there’s a bit of energy. It’s not much, but it’s the pick of a pretty flat bunch. The rest of the time, you might as well leave the board in the car.
Rusty.
Short Range ForecastMostly dry. Warm (max 33°C on Mon afternoon, min 20°C on Sun morning). Winds decreasing (fresh winds from the NW on Sat night, calm by Mon afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 34°C on Tue afternoon, min 19°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 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 10 | WNW 10 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 10 | WSW 10 | W 10 | W 10 | W 9 | W 9 | W 10 | WNW 10 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 106 | 141 | 51 | 47 | 48 | 15 | 14 | 25 | 14 | 14 | 14 | 13 | 8 | 57 | 17 | 16 | 28 | 28 | 30 | 125 | 25 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross | off | cross | cross-on | off | cross | on | cross-off | cross | on | cross | off | cross-off | cross-off | cross-off | cross-on | off | cross-off |
High Tide | 7:54PM3.97m | 8:13AM3.66m | 8:29PM3.90m | 8:52AM3.60m | 9:11PM3.81m | 9:40AM3.52m | 10:03PM3.69m | 10:42AM3.46m | 11:12PM3.58m | 12:06PM3.45m | 00:47AM3.56m | 1:39PM3.57m | 2:18AM3.68m | ||||||||
Low Tide | 2:26PM0.58m | 2:53AM0.55m | 3:07PM0.67m | 3:35AM0.62m | 3:52PM0.78m | 4:21AM0.71m | 4:41PM0.88m | 5:13AM0.80m | 5:37PM0.95m | 6:11AM0.86m | 6:40PM0.94m | 7:15AM0.85m | 7:47PM0.83m | ||||||||
 | |  | | | | | | | | | |  | | | | | | | |  | |
 | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — |
 | — | — | 10:00 | — | — | 10:00 | — | — | 10:00 | — | — | 9:59 | — | — | 9:59 | — | — | 9:58 | — | — | 9:58 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 29 | 28 | 24 | 31 | 32 | 28 | 33 | 32 | 29 | 34 | 34 | 29 | 29 | 25 | 21 | 23 | 23 | 22 | 25 | 26 |
Feels °C | 21 | 23 | 21 | 22 | 27 | 28 | 25 | 28 | 26 | 26 | 29 | 29 | 25 | 26 | 22 | 22 | 21 | 20 | 22 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | W 10 | — | W 10 | W 10 | W 10 | NW 4 | W 9 | W 9 | NW 4 | W 9 | W 9 | W 9 | W 8 | WNW 10 | W 10 | W 5 | W 9 | W 9 | W 10 | — | W 9 |
| kJ | 106 | — | 51 | 47 | 7 | 4 | 14 | 2 | 2 | 14 | 14 | 13 | 5 | 33 | 17 | 11 | 28 | 28 | 30 | — | 25 |
Swell 2 Height (m) Direction Period (s) | — | — | NW 4 | — | — | W 9 | — | — | W 9 | NNW 4 | — | W 11 | W 10 | — | W 7 | W 10 | — | WNW 4 | W 5 | — | W 13 |
| kJ | — | — | 9 | — | — | 15 | — | — | 14 | 2 | — | 2 | 8 | — | 1 | 16 | — | 4 | 2 | — | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WNW 10 | NNE 3 | NE 3 | W 10 | NE 2 | E 3 | W 9 | NNE 3 | — | — | — | — | WSW 10 | WSW 5 | — | WSW 4 | WNW 3 | — | WNW 10 | WNW 5 |
| kJ | — | 141 | 3 | 1 | 48 | 2 | 1 | 25 | 2 | — | — | — | — | 57 | 17 | — | 7 | 1 | — | 125 | 26 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 16 | 87 | 27 | 16 | 54 | 151 | 263 | 142 | 291 | 510 | 263 | 274 | 263 | 218 | 173 | 274 | 274 | 151 | 266 | 27 |
Best forecast wave conditions in Vendee | |||||||||||||||||||||
Best forecast wave conditions in France | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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