Extreme weather events that swept across Europe in the summer of 2025 are projected to cost the European Union €43 billion in macroeconomic losses in 2025 and up to €126 billion by 2029, according to a study released on 15 September by the University of Mannheim in Germany.
The research, conducted with two economists from the European Central Bank, finds that heatwaves, droughts and floods this summer could reduce the EU’s gross value added—the economic measure akin to gross domestic product—by 0.26 percent this year and by 0.78 percent within four years. The rising temperatures and resulting disasters have already cost France more than €10 billion this summer, underscoring a wider challenge for Europe’s travel‑dependent economies.
The study notes that the economic impact does not stop when the events end; rather, it intensifies in subsequent years. Researchers warn that repeated heatwaves, prolonged droughts and sudden flooding can erode infrastructure, suppress consumer spending and deter travel in affected regions.
“This would be a significant economic loss,” said Sehrish Usman, a researcher at the University of Mannheim and lead author of the study, cautioning that the cumulative losses could reach €126 billion by 2029. The analysis concludes that the long‑term burden will grow as climate change increases the frequency and severity of extreme events.
Impacts on Tourism and Travel
The summer of 2025 brought back‑to‑back heatwaves across southern and western Europe, with record‑breaking temperatures prompting health alerts and disrupting travel schedules. Drought conditions strained water supplies in regions dependent on river cruises and hampered transport on major waterways.
Flash floods and severe storms forced the closure of roads, rail lines and airports, leading to cancellations and delays at the height of the holiday season. These disruptions contributed to lower visitor numbers and higher operational costs for travel providers, adding to the estimated €43 billion in losses for 2025.
France, one of Europe’s most visited countries, experienced heatwaves that researchers estimate cost more than €10 billion. Tourism operators reported fewer bookings in regions struck by drought, while coastal destinations contended with extreme heat that kept travellers indoors during peak hours. In addition to lost revenue, the hospitality sector incurred higher expenses for cooling, water management and repairs to weather‑damaged facilities. These costs are not captured by insurance claims, meaning the actual economic toll is likely to be higher than initial estimates.
The study highlights that travel and tourism are particularly sensitive to climate variability. Prolonged heatwaves can lead to infrastructure failures such as rail track buckling or power outages at airports, causing cascading delays across the network. Flood‑related damage to cultural sites or natural attractions diminishes their appeal and can require lengthy closures for restoration. Researchers argue that without substantial adaptation measures, Europe’s tourism industry will face increasing volatility, with extreme weather events eroding its competitiveness and threatening jobs dependent on travel.
Long‑Term Outlook and Policy Responses
The projection of a €126 billion loss by 2029 reflects the cumulative nature of climate impacts. Beyond immediate disruptions, heat‑induced productivity declines, damaged infrastructure and altered consumer behaviour can suppress economic growth for years. The University of Mannheim’s researchers stress that preventive investments are more cost‑effective than post‑disaster rebuilding. They call on national governments and the EU to accelerate adaptation strategies, such as reinforcing transport networks against heat stress, improving flood defences and establishing early‑warning systems to protect travellers and residents.
For the tourism sector, adaptation may mean rethinking marketing strategies and travel patterns. Destinations could promote shoulder‑season visits to avoid peak‑heat periods, diversify attractions to include indoor or climate‑resilient activities, and invest in sustainable infrastructure that can withstand temperature extremes. Authorities are also urged to integrate climate risk assessments into tourism planning and to provide financial support for small businesses facing climate‑related losses.
The report’s findings arrive as Europe grapples with the broader economic consequences of climate change. The researchers emphasise that the EU’s recovery and growth plans must account for the costs of extreme weather, particularly in sectors like tourism that are exposed to environmental conditions. Without swift adaptation, they warn, the intensifying climate could continue to drain tens of billions of euros from the European economy and impede the region’s ability to attract visitors. The warning underscores the need for resilience planning across the continent, ensuring that Europe’s travel industry remains viable in a warming world.
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