The record in De Bilt is already the tenth ‘date heat record’ of 2025. In March, a record was even broken three times and one equaled. The last time it was record warm was on November 5.
There is no national record for all weather stations, according to Weeronline. “This record still stands at 15.7 degrees and was measured in Epen, Limburg, in 1979. The highest value measured across all weather stations was 15.0 degrees on Sunday and was measured in Westdorpe, Zeeland. This makes it a rare mild day in December.”
It will remain mild in the coming days. The temperature rises to 12 to 14 degrees and in the southeast it can reach 15 degrees locally.