On June 22, 2025, a strong heat wave spread across northern Europe. This happened in the United Kingdom, France, and the Netherlands. Government offices in these countries gave health alerts. The UK Met Office gave a forecast that eastern England could reach 34°C, which is 12°C higher than normal. France had even hotter weather, with some areas expected to hit 38°C. Older people and those with health problems were in danger. Because of the hot weather, the Netherlands changed some events, like Amsterdam’s 750th-year celebration. These changes were part of a strategic plan to keep people safe.

The heat also affected public events. In Paris, people at the air show stayed under a plane to avoid the sun. In the Netherlands, some marathons and concerts were canceled. Experts said this heat wave shows the fast changes in climate. A study from the Met Office said that 40°C days in the UK are now 20 times more common than before. This is a compelling sign that action is needed. Good planning helps people stay safe. Governments must act in a proactive way to reduce health risks.