October 2026 was the warmest October on record globally, with an average surface air temperature of 15.35°C, 1.75°C above the estimated 1850-1900 pre-industrial average for the month, surpassing the previous October record set in 2023 by 0.05°C. https://climate.copernicus.eu/surface-air-temperature-october-2026 #ClimateChange #globalwarming #elnino