Surf Forecasts:
La Tranche sur Mer surf forecast from 16 Jul 2026:
- Most powerful swell: Thursday 16 Jul, 8PM (local time) - 1.5ft (0.5m), 8s period, W swell with 33 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 0.5m 8s and forecast to arrive on Thursday (Jul 16) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Wednesday (Jul 22) at 11PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Thu 16th Jul) | 1.5ft (0.5m) 8s |
Table - best surf conditions forecast for La Tranche sur Mer over the next 16 days.
The Lowdown
Alright folks, grab a coffee. Rusty here.
The first chunk of this 16-day outlook for La Tranche sur Mer is dead quiet. We're talking days with next to no energy; you'd be staring at flat, bumpy lakes, not surf. It's a real dry spell that runs from now right through the morning of Saturday, 26th July. That’s over a week of nothing to get excited about.
Finally, on Sunday morning, the 26th of July, things look interesting, but you've got to be an expert. There's a pulse of swell coming in at 4ft from the west, with a short, sloppy period around 6 seconds. The wind is a glassy offshore from the WNW, which will clean it right up. The real story here, though, is the energy: it's in the moderate zone at a reading of (137). The problem is the wave comment says it's predicted to be too big for this particular break setup. For the crew riding bigger boards, the conditions will look clean, but the breaking wave is likely going to be a messy, closeout shorebreak. The water temp is a balmy 73°, which is "much warmer than normal" this time of year—about 5° above average, so you can go in with just a shorty or boardshorts if you're tough.
After that little blast on Sunday, it goes back into the doldrums. The rest of that week (Sunday afternoon through Wednesday, 30th July) is back to tiny, weak waves. The early morning of Monday, 27th July might show a brief window with 2ft from the WNW and a clean, glassy surface from dead calm winds, but it's described as "surfable waves but very ordinary conditions." The energy reading is weak at (87), so don't expect much push. By later in the week, Thursday and Friday (30th & 31st July), the breeze picks up again but the swell stays small, around 3ft from the west, though the energy ticks up to (120) and (150). That's moderate wave energy, but with the W wind blowing 19+ mph, it'll be a messy, bumpy surface—probably more fun for a kite than a paddle board.
There aren't any true standouts in this run. The one brief spike on the 26th is the only real swell event, but it's a high-level expert-only deal. For beginners and the average surfer, it's a flat, quiet stretch. It's typical for the area to have blank runs like this, so don't lose faith—forecasts shift.
Stay patient,
Rusty
Short Range ForecastSome drizzle, heaviest during Thu afternoon. Warm (max 27°C on Sat night, min 18°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 31°C on Sun afternoon, min 17°C on Mon morning). Mainly fresh winds. | ||||||||||||||||||||
Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | |||||||||||||||
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 9 | WSW 8 | W 8 | W 9 | W 8 | W 4 | W 8 | W 8 | NW 4 | W 8 | W 8 | W 10 | ENE 3 | W 12 | NE 3 | ENE 3 | W 11 | W 10 | W 10 | W 10 | WNW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 6 | 23 | 6 | 6 | 6 | 8 | 5 | 5 | 8 | 6 | 5 | 2 | 8 | 3 | 3 | 4 | 9 | 8 | 8 | 8 | 9 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | off | cross-off | cross-off | off | glassy | cross-off | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross-off | cross-off | cross | off | cross-off |
High Tide | 7:14PM4.67m | 7:44AM4.23m | 7:59PM4.55m | 8:28AM4.06m | 8:43PM4.32m | 9:13AM3.85m | 9:28PM4.01m | 10:00AM3.62m | 10:18PM3.69m | 10:59AM3.40m | 11:29PM3.39m | 12:16PM3.25m | 00:53AM3.21m | ||||||||
Low Tide | 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 | 3:56PM0.62m | 4:24AM0.74m | 4:45PM0.93m | 5:14AM1.05m | 5:40PM1.20m | ||||||||
 |  |  |  | |  | | | | | | | | | | | | | | | | |
 | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — |
 | — | — | 9:53 | — | — | 9:52 | — | — | 9:52 | — | — | 9:51 | — | — | 9:50 | — | — | 9:49 | — | — | 9:47 |
mm | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 23 | 22 | 22 | 22 | 22 | 26 | 27 | 25 | 31 | 30 | 22 | 29 | 29 | 22 | 29 | 29 | 25 | 30 | 32 |
Feels °C | 26 | 25 | 21 | 22 | 21 | 20 | 23 | 22 | 22 | 19 | 25 | 23 | 15 | 22 | 22 | 16 | 24 | 23 | 20 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | W 5 | — | W 8 | W 9 | W 8 | W 4 | W 4 | W 8 | NW 4 | WNW 5 | W 8 | W 8 | W 9 | W 9 | W 11 | W 11 | W 11 | W 10 | W 10 | W 10 | WNW 5 |
| kJ | 4 | — | 6 | 6 | 6 | 8 | 3 | 5 | 8 | 2 | 5 | 1 | 2 | 2 | 3 | 2 | 9 | 8 | 8 | 8 | 9 |
Swell 2 Height (m) Direction Period (s) | W 9 | — | W 6 | — | — | W 8 | W 8 | — | W 8 | W 8 | NW 5 | W 10 | W 7 | W 12 | W 8 | W 8 | — | NW 4 | — | — | W 10 |
| kJ | 6 | — | 3 | — | — | 5 | 5 | — | 5 | 5 | 1 | 2 | 1 | 3 | 1 | 1 | — | 1 | — | — | 8 |
Swell 3 Height (m) Direction Period (s) | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 8 | — | — | — | — |
| kJ | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WSW 8 | W 4 | W 5 | W 5 | — | — | W 3 | — | ENE 3 | ENE 3 | NE 3 | ENE 3 | NE 3 | NE 3 | ENE 3 | NE 3 | NNE 3 | NE 3 | NW 2 | — |
| kJ | — | 23 | 4 | 16 | 15 | — | — | 4 | — | 6 | 4 | 5 | 8 | 3 | 3 | 4 | 2 | 3 | 2 | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 729 | 763 | 355 | 786 | 888 | 906 | 964 | 773 | 312 | 471 | 237 | 237 | 338 | 237 | 256 | 263 | 237 | 237 | 338 | 151 | |
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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