Extreme heat and drought accelerated grape ripening across Champagne in 2026, bringing one of the region’s earliest harvests on record. For Champagne Barons de Rothschild, the conditions also produced a first: the house completed its entire harvest within August.
Picking began on Aug. 13 and ended on Aug. 27, compressing the harvest into just two weeks.
The first grapes were picked in Ambonnay and Trépail, in the southern Montagne de Reims. Chardonnay from the grand cru villages of the Côte des Blancs followed between Aug. 17 and 20, before teams moved on to Pinot Noir in the Montagne de Reims and Petite Montagne.
Champagne’s harvest traditionally took place from late September into October. It has since shifted markedly earlier, with picking now increasingly beginning in August – and Barons de Rothschild was far from alone this year.
The Comité Champagne, or CIVC, set Aug. 12 as the official start of the 2026 harvest, eight days earlier than in 2025. Vincent Finot, a grower in Montgueux, began picking as early as Aug. 6, making him one of the earliest producers publicly reported to have started harvesting.
His decision was partly prompted by grape analysis showing acidity falling rapidly. Any further delay risked compromising the balance between sugar and acidity.
Bollinger also began harvesting on Aug. 13, describing it as the earliest start in the house’s history – just 76 days after flowering.
Unusually high temperatures were a key factor behind the dramatically early harvest. A warm spring and summer, punctuated by repeated heatwaves, accelerated vine growth and ripening. Sugar levels rose rapidly as acidity declined, forcing growers to pick earlier to preserve freshness while achieving sufficient ripeness.
French climate specialist Serge Zaka has said the average harvest date in France’s vineyards has advanced by about 21 days over the past 50 years, with extreme heat accelerating the trend.
But the early harvest came with a steep decline in yields. Champagne’s vineyards were hit successively by spring frost, summer drought and repeated heatwaves in 2026.
An unusually warm start to spring prompted vines to bud early, leaving them exposed to the frosts that followed and caused widespread damage. Persistent dry weather and high temperatures during the summer then produced smaller berries and lighter bunches, further reducing yields.
Barons de Rothschild was not spared. The house said its vineyards yielded an average of 6,000 kilograms per hectare this year, as frost and the season’s difficult growing conditions took their toll.
Guillaume Lété, cellar master at Champagne Barons de Rothschild, said the vineyards endured three frost events in the spring, damaging 38% of their area. It was the most destructive frost the estate had experienced since 2003.
An almost entirely dry summer and five heatwaves followed. Despite the difficult conditions, Lété said the harvested grapes remained healthy and displayed an excellent balance of ripeness.
“Our agility, our use of small vinification vessels, and our ability to mobilise everywhere simultaneously allowed us, I believe, to come out on top during this extraordinary vintage,” Lété said. “Of course, this remains to be confirmed in the near future.”
The Champagne industry set the commercially available yield for 2026 at 8,800 kilograms per hectare, down from 9,000 kilograms in 2025.
The latest forecast from France’s Agriculture Ministry, released Sept. 7, projected that Champagne production would fall 49% from a year earlier and come in 47% below the five-year average, placing it among the French wine regions facing the sharpest production declines.
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