Last month the warmest October on record with 2026 on course to be second-warmest year

The wreckage of a Second World War German warship, one of dozens sunk by retreating Nazi forces in September 1944, emerges from the low waters of the Danube River in Serbia as drought and prolonged hot and dry weather lowered water levels during the summer. Last month, the 'exceptionally low river flows' persisted across Europe, including the Danube, Vistula, and the Rhine. Photo: Andrej Isakovic/AFP via Getty Images

Last month was the warmest October on record, with temperatures exceeding 1.5C for a third time in a row, according to a new report.

The average global surface air temperature was 1.75C above pre-industrial levels, reaching 15.35C.