Key facts
- France's summer heatwave is projected to cost the country €10 billion to €15 billion.
- This cost represents up to 0.5 percent of France's gross domestic product.
- The estimate is preliminary and based on extrapolations of past heat-related expenses.
- Wildfires and reduced agricultural output are identified as the primary cost drivers.
- Environment Minister Monique Barbut noted the figure could increase and urged caution.
France is facing an estimated economic cost of €10 billion to €15 billion due to its historically hot summer, according to an estimate shared by Minister for Ecological Transition Monique Barbut. This figure represents as much as 0.5 percent of the country's gross domestic product.
Barbut cautioned that the preliminary estimate should be treated with "great caution." It was derived by extrapolating heat-related costs compiled by France's official statistics agency, Insee, from previous years. The minister indicated that the final cost could rise as temperatures continue to remain significantly above seasonal averages across many French regions.
As of mid-July, approximately 85 percent of France was under drought warnings. Barbut identified recent wildfires and a decline in agricultural output as the most significant contributors to the estimated costs. She warned that these economic impacts would likely worsen in the future if governments do not implement policies to mitigate the effects of climate change.
The August 2003 heatwave, previously France's warmest on record, resulted in a 22 percent decrease in cereal production and a 9 percent drop in wine production, according to Insee data. A 2025 report from the European Central Bank also noted that regions experiencing heatwaves and droughts have seen noticeable impacts on overall European economic output.