Europe's Heatwave Death Toll Hits 35,000, Germany's Worst Summer on Record

Since Germany's Robert Koch Institute reported roughly 14,000 heat-related deaths between April 6 and August 9, the continent-wide picture has come into sharper, grimmer focus. At least 35,000 excess deaths have now been tallied across Europe from four back-to-back heatwaves this summer, according to The Guardian, and that figure covers barely half the continent. August data for most countries still hasn't been finalized.

Germany, France and Spain account for more than 25,000 of those deaths combined, according to provisional national figures cited by The Guardian and The Irish Times. Germany's toll is the worst. The Robert Koch Institute said 9,600 people died in the single week of June 22-28, a number that only the deadliest week of the July 2022 Covid wave has exceeded in EU-wide excess mortality records going back to 2008.

Germany's previous annual high for heat deaths was 8,900, set in 2018. A normal summer sees fewer than 2,000, according to the RKI. This year's total of roughly 14,000 makes it the country's worst summer for heat mortality since records began.

Spain's Carlos III health institute has attributed 4,947 deaths to heat since May, according to The Guardian, edging past the previous record of 4,520 set in 2022. A separate account from spotmedia.ro, citing Spanish health authorities, put the toll at nearly 4,500 deaths between June 1 and August 19, still the country's highest for that stretch since 2022. The gap between those two Spanish figures reflects different reporting windows, not a contradiction.

France's preliminary figures show 7,300 excess deaths between late May and July 22, though that data covers only about 80% of national mortality and excludes August entirely, per The Guardian and The Irish Times. Spotmedia.ro's breakdown, drawing on French health authorities, shows 5,764 excess deaths between June 17 and July 2 alone, with three-quarters of victims aged 75 or older.

Smaller countries reported their own records. England's health security agency linked 2,877 deaths to the May and June heatwaves. Belgium recorded 1,222 excess deaths in an 11-day June stretch. The Netherlands logged at least 900 additional deaths between June 22 and July 5, and modelling pointed to another 1,070 excess deaths in Poland during the same late-June heatwave, according to The Guardian.

Heat is rarely listed as a direct cause of death. It typically worsens existing heart, lung or kidney conditions, and the person dies of a heart attack, stroke or organ failure weeks later. That lag means final attribution can take months, and several countries haven't published even early August figures yet.

Karl Lauterbach, Germany's former health minister, said last week that the numbers released so far will probably turn out to be underestimates, according to The Guardian and The Irish Times. Given that August has brought additional heat stress on top of an already record-setting June and July, that warning carries obvious weight given the pattern already visible in June and July data.

The EU's EuroMOMO mortality monitoring system, cited by spotmedia.ro, shows the last week of June was the summer's worst, with nearly 16,000 deaths above normal across the monitored countries, followed by roughly 8,000 more in the first week of July. EuroMOMO draws on data from 27 European countries but doesn't break results out by nation, which is why national health ministries are publishing their own separate, differently timed figures.

The European Union's Copernicus climate monitor said June and July 2026 was the hottest such stretch on record for western Europe, with an average temperature of 21.62°C, about 2.79 degrees above normal and beating the previous record set in 2022, according to CNN. July was also the hottest month on record for the world's non-polar oceans.

Samantha Burgess, strategic lead for climate at the European Centre for Medium-Range Weather Forecasts, told CNN that drying soils and the heat fed off each other in a self-reinforcing spiral. As soil moisture drops, land loses its natural cooling capacity, letting heat build further. Soil moisture deficits across France, Spain and parts of Germany and the UK were more severe than during the 2022 drought, Copernicus found.

That drought and heat combination has also fueled record wildfires, which burned more than 1.23 million acres across Spain, France and Italy and displaced hundreds of thousands of people, according to an August 6 EU report cited by CNN. Laurence Rouil, director of the Copernicus Atmosphere Monitoring Service, said larger fires are pushing smoke higher into the atmosphere, spreading air-quality damage well beyond the areas actually burning.

The unresolved question is how much the final number climbs once August data comes in. France's current 7,300 figure excludes the tail end of a heatwave that continued into early August. Germany's 14,000 already includes early August, but the RKI's own numbers show the toll rising sharply as summer wore on, not falling. Full, verified national totals for the entire summer are not expected for months.