Belgium's weather service places the whole country under a yellow heat warning until Thursday
The Royal Meteorological Institute (IRM/KMI) has activated a code yellow warning for heat across all of Belgium, in force until Thursday, according to reporting by DHnet on 8 August 2026.
In 30 seconds
- The IRM/KMI has issued a code yellow warning for heat covering all of Belgium, per DHnet reporting on 8 August 2026.
- The warning is reported to remain in force until Thursday.
- Yellow is the lowest active level in the IRM's four-tier warning system, below orange and red.
- Heat alerts carry the greatest risk for older people, young children and those with chronic illness.
The Royal Meteorological Institute (IRM in French, KMI in Dutch) is Belgium's national weather service and the body responsible for issuing official weather warnings. It uses a four-tier colour code — yellow, orange and red, above a green baseline — to flag hazards such as heat, storms, wind, snow and ice. A code yellow for heat is the lowest active warning level, advising the public to be aware and take sensible precautions rather than signalling an emergency.
Background
Heat warnings have become a regular feature of Belgian summers. The IRM's colour-coded alert system and Belgium's federal heat-and-ozone plan were developed to coordinate health and civil-protection responses during hot spells, which climate scientists expect to grow more frequent and intense across Western Europe.
What to do
Drink water regularly, keep living spaces shaded and ventilated during cooler hours, avoid strenuous activity in the afternoon heat, and check on elderly or isolated neighbours.
Impact
Regional — The warning applies across all Belgian regions — Flanders, Wallonia and the Brussels-Capital Region. Urban areas including Brussels typically experience the strongest effects because dense built environments retain heat overnight, giving residents less chance to cool down.
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- Published:
- 8 Aug 2026, 02:00
- Retrieved by ODIN:
- 8 Aug 2026
- Publication date unavailable
- Retrieved by ODIN:
- 8 Aug 2026
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This story was assembled from verified evidence, with its sources and reasoning recorded as it was written.