2026-08-17
White wine harvesting is underway in Bordeaux earlier than usual after a fifth heat wave in about six weeks pushed grapes in parts of the region to maturity faster than growers had expected.
At Château Latour-Martillac in Pessac-Léognan, one of Bordeaux’s better known wine areas for dry white wines, the 2026 harvest began on Aug. 11, setting a new record for the estate, according to its technical director, Edouard Kressmann. He told the local broadcaster France 3 that this year’s start came one week earlier than the property’s previous earliest harvest, which dated to 2022.
“We are experiencing global warming every year in our vineyards,” Mr. Kressmann said in the interview.
The accelerated pace of the season has become visible in the way the work is now organized. At Château Latour-Martillac, pickers began at 6:30 a.m. and worked for six hours before temperatures climbed too high for the labor to continue safely and before the fruit itself became too warm to handle in ideal conditions.
That early cutoff reflects a growing concern in many wine regions during hot summers. Grapes picked in high heat can arrive at the cellar warmer than winemakers want, which can complicate efforts to preserve freshness and aromatic precision in white wines. Starting before sunrise or shortly after it has become one of the most practical responses available to estates facing repeated hot spells during harvest.
In Bordeaux, the shift is no longer treated as an isolated event. Harvest dates across the region are now about one month earlier than they were in the 1980s and 1990s, according to the information reported from the estate and local coverage of the current vintage. What was once considered unusually early is becoming more common, especially for white varieties, which are often harvested before red grapes and can be more sensitive to rapid sugar accumulation in hot weather.
The timing matters because white grapes are usually picked at a narrower point between ripeness and loss of acidity. Extended heat can move that window forward quickly. Growers must then decide whether to harvest sooner in order to protect balance in the finished wine. In a region that built much of its reputation on moderate Atlantic conditions, repeated heat waves are changing long-standing rhythms in the vineyard.
Pessac-Léognan, south of the city of Bordeaux, has been among the places where that change is being closely watched. The appellation is known for both red and white wines, and its white wines often depend on freshness and structure as much as on fruit ripeness. When temperatures remain elevated for days at a time, growers can face pressure to move fast, sometimes mobilizing workers on short notice to bring in fruit before another spike in heat.
The current harvest has unfolded under those conditions. The latest heat wave, described locally as the fifth in a month and a half, helped bring white grapes to maturity and sent crews into vineyards across the area. Estates have been adapting not only by starting earlier in the calendar but also by compressing the workday into the coolest part of the morning.
For producers, the earlier start is more than a scheduling issue. It affects labor planning, transport, cellar operations and the style of the wines themselves. Picking over a shorter and earlier window can require extra coordination between vineyard teams and winery staff, especially when several parcels reach maturity at nearly the same time.
Mr. Kressmann’s remarks to France 3 captured a concern that is now shared far beyond one estate. In Bordeaux, growers have spent years discussing how rising temperatures are reshaping the vineyard cycle, from budbreak and flowering to véraison and harvest. This year’s white harvest at Château Latour-Martillac offered another clear marker of that shift, with the earliest date on record for the property arriving in mid-August rather than later in the month, and with fieldwork ending by late morning because of the heat.