KEY POINTS
  • Among the European countries that recorded their hottest January days in history were the Netherlands, Denmark, Poland, Czech Republic, Belarus, Latvia and Lithuania.
  • Meteorologists and climatologists expressed alarm over the unseasonably warm winter weather.
  • Guillaume Séchet, a broadcast meteorologist in France, said Europe "experienced one of the most incredible climatic days in history" on the first day of 2023.
Poland's capital of Warsaw recorded temperatures of 18.9 degrees Celsius on Jan. 1; more than 5 degrees Celsius above the previous record set 30 years ago.

A winter heatwave smashed several national temperature records across Europe over the New Year's weekend, prompting meteorologists to sound the alarm, while some ski resorts were forced to close due to an absence of snow.

January temperatures reached an all-time high in several European states, with national records set in at least seven countries.