Overview
- The Nationaal Hitteplan went into effect and the KNMI issued a code yellow on Sunday, triggering coordinated public-health and municipal responses.
- Local conditions on Sunday were sunny and warm with the Rijnmond region reaching about 25–29°C and low humidity that kept the air feeling comfortable.
- Forecasts project a developing heat episode with regional daytime highs of roughly 30–32°C from Tuesday through Thursday and a shift to more variable weather with possible showers or thunderstorms by Friday.
- Organizers at the Werfpop festival in Leiden, expecting 10,000–15,000 visitors, set heat rules including one unopened water bottle allowed, a ban on reusable bottles, small sunscreen containers permitted, and roving sunscreen stations.
- The heat has pushed people to beaches and pools, created heavy parking pressure, and led Rijswijk to ban barbecues on a public field with a €340 fine because of drought and elevated wildfire risk.