January 2025 was the warmest January globally since records began – even though the beginning La Niña phase actually brings a cooling effect. This is according to the latest data from the EU’s Copernicus Earth observation program. The Copernicus update shows an average Earth surface temperature of 13.23 degrees Celsius. This is 0.79 degrees above the average measured for January between 1991 and 2020 and 1.75 degrees above the pre-industrial level. This makes January the 18th consecutive month above the 1.5-degree threshold defined as critical in the Paris Climate Agreement.