Europe's Heatwaves Widen Insurance Gap as Business Losses Mount

As Europe endures its fifth heatwave of the year, businesses are feeling the financial strain of extreme temperatures. In Padua, Italy, the traditional early-evening aperitivo has largely vanished as customers retreat indoors to air-conditioned spaces, leaving outdoor terraces empty and cutting sales for hospitality venues.

A survey of around 600 hospitality businesses in Padua and its province found that more than 80% reported turnover declines of roughly 20% during the recent heatwave. For many, that loss is enough to erase their profit margins entirely.

The problem extends far beyond cafes. Heatwaves reduce worker productivity, curb consumer spending, delay trains, lower agricultural yields, and raise cooling costs for factories. Yet most business interruption insurance policies do not cover extreme heat, because it rarely causes the kind of physical damage that triggers a claim.

"Heat in itself is not a traditionally insured risk," said Swenja Surminski, managing director for climate and sustainability at Marsh. "Extreme heat rarely causes catastrophic physical damage the way a flood or a storm does, but the financial operational disruption that it triggers can be just as severe."

Estimates from Moody's suggest last summer's European heatwaves cost around €43 billion in lost economic output, but generated only about €500 million in insured payouts. A 2023 survey of 9,000 small and medium-sized firms for Europe's insurance regulator found that just 28% held business interruption cover as part of their property insurance, and only 17% had non-damage business interruption protection.

Heat also acts as a compound risk, often interacting with drought, wildfire, and water shortages rather than producing a single identifiable loss event. That makes it harder to model and insure than other natural catastrophes. Data from environmental disclosure platform CDP showed that 35% of companies it tracks identified heatwaves as a risk driver, led by businesses in manufacturing, services, infrastructure, and food-related sectors.

To bridge the gap, insurers are exploring parametric products that pay out automatically when temperatures exceed predefined thresholds, without requiring a lengthy loss-adjustment process. The European market for parametric insurance is expected to reach $7.93 billion by 2031, according to KBV Research, with applications already in agriculture and potential expansion into transport and workforce protection.

"Parametric insurance can really play a role," said Aidan Kerr, head of UK and Ireland public sector solutions at Swiss Re.

Still, experts stress that adaptation is essential. Companies may need to invest in cooling technologies, redesign workplaces, and stress-test supply chains to withstand more frequent extreme heat. As Surminski put it: "Take action to avoid the losses rather than address them once they've occurred."