Overview
- The KNMI issued code rood for multiple provinces on Friday, June 26, after De Bilt recorded 30.2°C and the country entered an eight‑day hittegolf that equals long June spells in 1936 and 1976.
- Authorities activated the Nationaal Hitteplan, set up cooling locations and warned vulnerable groups to avoid sun and strenuous activity to prevent dehydration and heat stroke.
- Schools, exam centres and some public services closed or moved to shortened hours, and many events were canceled while other large gatherings continued with extra measures such as free water and misting systems.
- Public transport operators reduced or adjusted services and warned of failures, with NS running fewer trains on two routes and regional bus and tram companies reporting delays and some vehicle breakdowns.
- Local businesses and infrastructure reported heat-driven faults — refrigeration compressors and port terminals limited operations — and meteorologists say such early‑season extremes are becoming more common with rising temperatures.