Belgium is enduring an unprecedented heatwave, with temperatures expected to hit record highs on Friday, 26 June 2026. The Royal Meteorological Institute of Belgium (IRM) has issued a red alert for extreme heat in eastern regions and warned of localized thunderstorms during evening hours. Temperatures are forecast to range from 35°C in the west to as high as 40°C—or even higher—in the east, creating oppressive conditions for millions of residents already struggling under prolonged sweltering weather.
Storms and Gradual Cooling Expected
The first thunderstorms are expected Saturday (27 June), particularly in some areas, though intense heat will persist—especially in the east, where thermometers may again climb close to 39°C. A gradual easing of the heatwave is forecast from Sunday, as thunderstorms moving northeast from France are expected to bring cooler air masses into Belgium. Temperatures should drop to around 30°C by Sunday and fall further to approximately 25°C on Monday.
Emergency Measures Across Public Life
This extreme heat has already disrupted daily life—and triggered emergency measures across transport networks, public services, and event planning. Authorities have rolled out protective actions, including mass SMS alerts sent directly to citizens’ mobile phones. These messages advise people to avoid physical exertion, limit outdoor movement during peak heat hours, and prioritize hydration.
Transport Disruptions Mount
The national railway operator SNCB announced the cancellation of several train services on Friday—particularly those serving high-demand commuter routes—due to risks posed by extreme heat to rail infrastructure. High temperatures can cause metal components in tracks and signaling systems to expand or malfunction, raising safety concerns. Passengers are urged to check real-time schedules via the SNCB app or website before traveling.
Regional bus operator LeTec also confirmed the suspension of numerous bus routes between 13:30 and 17:00—the hottest part of the day—because much of its fleet lacks air conditioning. In the Hainaut province, all buses (except in the Charleroi area) will remain off the road during that window.
High-Speed Rail Slowed
Infrabel, the company managing Belgium’s rail infrastructure, has reduced speeds on the high-speed line connecting Brussels and Paris until Saturday. Trains will be limited to 170 km/h instead of the usual 300 km/h—a change expected to add roughly 12 minutes to journey times.
Outdoor Events Banned, EU Institutions Adjust
Several outdoor events—including festivals and public gatherings—have been canceled or postponed across the country. At the European Commission headquarters in Brussels, air conditioning units were reportedly switched off in certain offices as part of energy-saving protocols amid the heat and grid pressure—though essential cooling remains operational in critical areas.