Wildfires Devastate French Wine Industry

As wildfires ravage large parts of Western Europe this summer, winemakers in the region are increasingly worried about the future of one of its most important exports.

In France, Europe's largest wine exporter, about 739,000 hectares are dedicated to vineyards spanning regions such as Languedoc, Bordeaux, and the Rhône Valley—a tradition that has endured for centuries.

However, human-induced climate change is creating more extreme weather conditions, threatening precious and delicate grapes that are highly sensitive to temperature. Worse, the frequency of wildfires in arid forests is rising, causing devastation to agriculture.

Intense Heat and Wildfires

This year, Western Europe experienced one of its hottest summers, exacerbated by El Niño—which brings hotter and drier conditions. Europe is now the fastest-warming continent on the planet, and in some places, it is not fully prepared to cope with the heat.

The hot season began with a heatwave in May, and by mid-August, temperatures reached 40°C in some areas. Wildfires have swept through parts of Gironde in southwestern France, near Bordeaux—the heart of the wine-producing region.

High temperatures force grapes to ripen faster than usual. This creates sweeter flavors, but also affects the natural acidity of the grapes and increases alcohol levels in the wine.

The 2026 wildfire season in southwestern Europe was one of the worst in decades, with a series of major fires in France from June to July. Interior Minister Laurent Nunez said at least 465,000 hectares have been burned since the start of the year.

In Gironde alone, the burned area was about four times the size of Paris—the largest fire since 1949. Authorities had to evacuate around 220,000 people, including those living near Bordeaux. The fires were so severe they even generated lightning and sparked additional blazes.

The southwestern regions of Landes and Var, as well as Aude and Hérault, were also affected. By September 1, a few small fires were still active in the south, but all fires are now under control.

Impact on Vineyards

Although the fires came within about 15 kilometers of Bordeaux, most of the region's vineyards—located farther inland—were largely unaffected, according to Per Karlsson, a wine expert who runs BK Wine Tours.

However, some producers are at risk not from the flames but from the smoke. Wind can carry smoke and ash much farther than the fire itself. In July, ash fell on the wine town of Libourne—more than 100 kilometers from the fire source at Cap Ferret. Libourne is near the important wine hub of Saint-Émilion.

Smoke can damage grapes by penetrating the skins and releasing smoky flavors during fermentation, reducing the overall quality of the juice and the resulting wine.

Wine tourism has also suffered, even as wineries view tourism as a crucial additional revenue stream amid declining wine consumption.

A Cascade of Crises

Beyond wildfires and heat, prolonged drought in Western Europe is also affecting grape growers. Key water sources like the Danube and Rhine rivers have shrunk significantly.

In eastern France, the Doubs River has nearly disappeared in some places, exposing dry riverbeds. Authorities have had to impose water-use restrictions in many areas. Ecology Transition Minister Monique Barbut called this year's drought “exceptional” in its intensity.

Vineyards traditionally rely on rainfall because authorities have banned irrigation to force vines to seek natural groundwater, ensuring higher quality. But during droughts, vines without enough water draw from the grapes, causing them to shrivel.

Stéphane Vignon, a winemaker in the village of Verzenay in northeastern France, told Reuters that some grape clusters this year are nearly 30% lighter than their usual weight.

The compounded crisis has brought France's harvest earlier into August, instead of the traditional September, as farmers fear losses from rapid ripening and reduced acidity.

At the same time, the French wine industry is facing weaker sales due to changing habits as people drink less wine globally. In the U.S.—the world's largest wine consumer and France's biggest customer—wine consumption fell from 3.3 billion liters in 2020 to 2.7 billion liters in 2024, according to the California Wine Institute.

President Donald Trump's tariffs on French wine in 2025, along with repeated threats of higher tariffs, have not helped falling sales.

Karlsson said climate change in the near future may be manageable as growers begin to adapt by planting more drought-resistant grape varieties. But fewer people drinking wine? “That's the bigger problem,” he said.