Overview
- The KNMI declared code rood for extreme heat across multiple provinces while De Bilt’s observatory recorded temperatures that meet the official heatwave criteria this week.
- High overnight lows set new June records in several locations, producing repeated tropennights that have worsened sleep and reduced daytime functioning for many residents.
- Transport operators reduced or altered services and utilities postponed non‑essential works, and some schools and public services closed to protect staff and vulnerable people.
- Major events and festivals largely continued but implemented heat measures such as free water, shade, misting systems and adjusted entry rules to lower health risks.
- Scientists say the scale and frequency of these June extremes are far greater than decades ago and link that change to human‑caused warming while forecasts point to a cooling break and possible storms by the weekend.