The Copernicus Climate Change Service (C3S) has released its latest monthly Climate Bulletin, highlighting significant global climate patterns observed in October 2025. According to the report, October 2025 was the third-warmest October ever recorded worldwide, with an average surface air temperature of 15.14°C—0.70°C above the 1991–2020 monthly average.
A data visualization prepared using C3S information shows the surface air temperature anomalies across parts of the Northern Hemisphere during the month. Much of northern and western Europe experienced warmer-than-average conditions, with an average temperature of 10.19°C, exceeding the long-term average by 0.60°C.
The Arctic regions were particularly affected, with the area northeast of Svalbard and the Canadian Arctic Archipelago recording anomalies as high as 8°C above normal. These findings underscore ongoing concerns about accelerated warming trends in the high latitudes and the broader implications for global climate stability.
