Overview

• The ISGlobal analysis across 654 regions in 32 countries estimates 62,775 deaths from June 1 to September 30, 2024, roughly 25% more than in 2023.
• More than 181,000 heat-related deaths are estimated across the summers of 2022–2024, with Italy recording the largest 2024 toll at over 19,000.
• Spain logged more than 6,700 deaths and Germany about 6,300 in 2024, while Greece, Bulgaria and Serbia had the highest per-capita mortality rates.
• The World Meteorological Organization confirms 2024 as the warmest year on record, with the global average 1.55°C above preindustrial levels.
• The study validates the Forecaster.health model for region-specific warnings up to a week ahead and identifies older people as especially vulnerable.