Western Europe’s early heatwave breaks May records and strains public health systems

Published by Albis · 30 May 2026

Portugal, France, Britain and other parts of Europe have seen record May heat, hospital pressure, red alerts and heat-linked deaths before summer has fully begun

• • Extreme heat arriving this early strains health systems, work routines and urban infrastructure before summer has fully started.
• • Public-health transmission chain.
• • Portugal’s central town of Mora reached 40.3C on Wednesday, breaking the country’s previous May record of 40C from 2001, according to France24.
• • France and Britain also reported their hottest-ever May days as a heat dome brought high-summer temperatures to western Europe before the end of spring.