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Europe's Calendar Broken: May Heat Shatters Records
22 May
Summary
- Cities struggle with early May heatwaves due to unprepared infrastructure.
- UK and Spain anticipate breaking May and spring temperature records.
- Climate change has significantly increased the likelihood of heatwaves.

European cities are facing sweltering May temperatures, with experts warning that intense spring heat is becoming the "new normal." Spain is bracing for exceptionally high temperatures, with lows of 20°C expected in several valleys, typical of midsummer. The UK anticipates breaking May and spring temperature records, with highs possibly reaching 33°C.
Germany is also forecasting 30°C heat, while Paris and Rome will experience similar conditions. Climate models show that June heatwaves are now 10 times more likely than in pre-industrial times, a pattern emerging for May as well. This shift means countries' infrastructure, agriculture, and public health systems are unprepared for such early heat.
The Mediterranean basin remains an epicenter for deadly heatwaves, drought, and wildfires. However, even cooler nations are experiencing extreme heat, overwhelming housing, transport, and hospital networks never designed for such conditions. A UK report suggests air conditioning will soon be "unavoidable" to protect citizens.
Research indicates climate change was responsible for 68% of an estimated 24,400 heat deaths in 854 European cities last summer, raising temperatures by up to 3.6°C. Countries like Romania, Bulgaria, Greece, and Cyprus were severely impacted by a single heatwave in July 2023.
In response, cities like Athens and Barcelona are treating heat as a public health emergency, establishing "climate shelters" in public buildings. Spain leads with an advanced network, including 400 shelters in Barcelona. Cities are also appointing Chief Heat Officers to coordinate responses and implement adaptation measures like increasing green spaces and reducing heat-retaining surfaces.