Home · Science · Sep 12 archive

Record Heatwaves Boost Champagne Alcohol Content

Confirmed

Science Desk

In Short: France's Champagne region experienced its earliest harvest due to record heatwaves, allowing winemakers to produce champagne with a higher alcohol content, potentially becoming the norm in the next decade.

Winemakers in France's Champagne region have produced champagne with an alcohol content of up to 15%, above the usual 13% cap, due to record heatwaves. This temporary increase is expected to affect a small number of wines, according to the Comité Champagne industry association.

The earliest harvest in Champagne's history, beginning in early August and expanding by mid-month, is linked to climate change, which is making such unusual harvests more frequent. Maxime Toubart, co-chair of the Comité Champagne, predicts that this unusual harvest will likely become the norm in 10 to 15 years.

Climate scientists have confirmed that August 2026 was the world's joint hottest month on record, and the warmest August in history. Western Europe experienced its warmest summer in recorded history, with severe drought conditions affecting major rivers and sea surface temperatures reaching record highs.

While higher-strength champagne may not be an obvious selling point, the 2026 vintage is expected to fall by 49% compared to 2025 and 47% below the five-year average, severely impacting the French wine industry. This comes after the region experienced record heatwaves, prolonged summer drought, and unseasonal spring frosts.

What's confirmed

What's still developing

Sources