In this vineyard, these August harvests break a record and reveal a climate change that no one dared to imagine

In Alsace, the pruners will come out while the summer holidays are not even over. The harvest ban has just been set for an unprecedented date, in the middle of August, which shakes up both the memories of the elders and the organization of the estates. One thing is clear: something has changed in the vineyard.

For Crémant d’Alsace, the first bunches will be cut from August 12, 2026, an opening validated by the National Institute of Origin and Quality (INAO). This absolute record precocity sends a strong signal about climate change and transforms the harvest into a real race against time.

2026 harvest in Alsace: a ban in the middle of summer, a marker of the climate

In Marlenheim, independent winemaker Xavier Muller, who farms 18 hectares, sums up the shock of this advance in the calendar: , he tells France 3. In one generation, the dates have gained almost a month in the Alsace vineyards.

The maturity figures confirm the urgency. On his pinot noir intended for crémant, the alcohol potential already displays 12 degrees, while the target is more around 10.5 to 11., explains Xavier Muller. In 2025, the crémants started on August 19; for Arthur Froehly, from CIVA, he confided to *Terre de vins*.

In the vineyards of Marlenheim, a logistical challenge called the August harvest

To avoid letting the grapes exceed the limits set by the appellation, Xavier Muller had to urgently mobilize a dozen pickers and adapt the days to the thermometer. , he anticipates, in order to avoid the hottest hours of a new heat wave predicted for Alsace.

This advance in the middle of summer also modifies recruitment. The Alsace Vendanges 2026 unit must fill between 20,000 and 25,000 positions each year, this time with offers increasing by 39% in Bas-Rhin, 40% in Haut-Rhin and even 128% around Guebwiller. The students see it as an opportunity, notes the winemaker.

“There are no more pre-established rules”: an Alsatian sector that adapts

For Théo Grischko, general delegate of the Association of Winegrowers of Alsace (AVA), this new normal is gradually taking hold. , he explains to France 3. The elders remind him of another era:

Water stress in spring, heatwave, small bunches but exemplary health status: this cocktail should lead to lower yields, but to promising wines. Arthur Froehly also recalls that In Burgundy, the Crémant harvest began on August 8, 2026, with very healthy grapes but less juice, proof that this upheaval goes well beyond Alsace and is profoundly redrawing the French vine calendar.

Why are the 2026 harvests in Alsace starting so early?

The record precocity of August 12, 2026 is explained by high temperatures, marked water stress then a return of heat, which accelerated the maturity of the grapes.

What is the date of the 2026 harvest ban for Crémant d’Alsace?

The INAO has authorized the start of the Crémant harvest in Alsace from August 12, 2026, a date never seen before in the recent history of the vineyard.

Do early harvests degrade the quality of Alsace wines?

Professionals believe that the quality will be there: the bunches are healthy, with few diseases, even if yields should be down.

How to participate in Alsace Vendanges 2026 as a seasonal worker?

The Alsace Vendanges unit centralizes thousands of offers. Needs explode in 2026, which opens up many possibilities for students and seasonal workers available in August.