Early heat waves in Europe this year correlate with a significant increase in mortality, with statistical models indicating more than 14,000 excess deaths during the peak period, per emerging data from regional monitoring systems.
Analyses of “excess mortality”—the deviation from typical death rates—showed steep rises in late June amid record temperatures. Researchers note that death certificates may not fully capture heat-related fatalities, as events like heart attacks exacerbated by heat might only be recorded under primary diagnoses.
This pattern mirrors past European heat-related crises, though 2003 remains the worst year, with ~70,000 heat-attributed deaths. Climate change is accelerating both the frequency and severity of such events, driven by fossil fuel emissions.
EuroMOMO, a pan-European mortality tracker, reported 14,260 excess fatalities in the week ending June 28, with over 12,000 involving individuals aged 65+. This starkly contrasts with lower figures in adjacent weeks.
Lasse Vestergaard of Denmark’s health institute emphasized the heat wave’s widespread impact across multiple nations, stating no alternative explanation justified such high mortality. Highest excess rates were observed in France, Belgium, and Germany.
Country-specific reports align with these findings. Germany’s Robert Koch Institute attributed 6,830 deaths to heat through early July, with 6,470 among seniors. Germany recorded 41.7°C (107°F) on June 28, the hottest day since records began.
The UK’s Met Office estimated 2,700 heat-related deaths in England and Wales during May-June outbreaks, including 550 in late May and 2,200 in late June. historic records were broken, with June temperatures exceeding 37°C (98.6°F).
France reported at least 2,000 excess deaths in the week of June 22-28, its hottest period ever. Over 40% of the country surpassed 40°C (104°F), with peak temperatures hitting 30°C (86°F) as measured by national thermal indicators.
Spain’s health authority linked 937 June deaths to heat, with its second-hottest June on record. A prolonged heat wave saw temperatures regularly above 40°C (104°F).
Belgium’s public health body noted 1,747 excess deaths during the June 18-July 1 heat wave, calling it “exceptionally widespread.” Peak temperatures reached 35.5°C (95.9°F) on June 26.
The Netherlands reported 480 excess deaths, concentrated in eastern and southern regions with the highest temperatures. A record 36.8°C (98.2°F) was recorded in June, surpassing the prior mark by 1°C (1.8°F).


