Overview
- Weeronline and KNMI confirmed that Friday, August 14 produced the warmest 14 August on record in De Bilt at about 35.2°C, with some local stations reporting maxima near 37°C.
- Authorities activated heat-response measures including the Nationaal Hitteplan and regional code yellow and the RIVM issued ozone-driven smog warnings that raised health risks for children, the elderly and people with lung conditions.
- Forecasters say a rapid wind shift from the sea will bring increased cloud, scattered rain and a weekend cooldown to roughly 22–25°C in many places, ending the brief extreme-heat episode.
- Water managers kept drought measures in place, with Groningen restricting the Robbengatsluis to protect freshwater levels and regional waterschappen conducting fish relocations as low water and warm conditions stress aquatic life.
- The event fits a pattern of more frequent heat records and tropical nights, prompting short-term actions such as adjusted opening hours and longer-term adaptation efforts like urban greening and creating ‘cool oases’.