Sciensano reports 1,747 excess deaths after Belgium’s June heatwave
Updated 11 July 2026, 15:00 UTC. Belgium recorded 1,747 excess deaths during the 18 June-1 July heatwave period, according to Sciensano figures reported by AFP and carried by The Guardian. BRUZZ reported that the risk is higher in Brussels, where dense housing, paved surfaces and hot nights make heat harder to escape.
Excess mortality shows the human cost of extreme heat after the emergency headlines fade. For Brussels residents, the issue is especially immediate because dense housing, limited cooling and hot nights leave vulnerable people with less room to recover.
The subject is excess mortality linked to Belgium’s late-June 2026 heatwave, with Brussels as the main regional focus because BRUZZ reported a higher local risk. The named entities are Sciensano, BRUZZ, the Royal Meteorological Institute, Brussels Environment, AFP, The Guardian, AP and World Weather Attribution.
Background
Belgium has seen deadly heat before, including the 2019 European heatwaves, but the reported 2026 excess mortality figure stands out because Sciensano’s monitoring series began in 2000 and AFP described this episode as the highest excess mortality in that series.
Impact
Regional — Brussels is central to this story. BRUZZ framed the risk as higher in the capital, and the city’s built environment makes heat exposure harder to avoid for people in small flats, poorly insulated homes and highly paved neighbourhoods.
Opposing perspectives
- Public-health authorities
Public-health authorities focus on immediate risk reduction: drink water, avoid peak heat, check on older or isolated people, and keep homes as cool as possible. Their priority is preventing deaths during the next hot spell, especially among people already medically or socially vulnerable.
- Urban-climate and planning experts
Urban-climate and planning experts argue that emergency advice is not enough when heatwaves recur. They stress shade, trees, water-sensitive streets, insulated housing and cooler public spaces, because Brussels’ built environment determines who can actually escape dangerous heat.
Sources & evidence
- View sourceBRUZZPrimary· bruzz.be· 8 July 2026Retrieved 11 July 2026· 7 days ago· Dated
- View sourceThe Guardian / AFP· theguardian.com· 9 July 2026Retrieved 11 July 2026· 6 days ago· Dated
- View sourceAP News· apnews.com· 26 June 2026Retrieved 11 July 2026· 19 days ago· Dated
- View sourceRoyal Meteorological Institute of Belgium· meteo.beRetrieved 11 July 2026
