Last month was the second hottest September on record globally, after September 2023, with average temperatures 0.73°C higher than the 1991-2020 average for the month, according to data from the EU climate-monitoring service Copernicus.
Last month's average temperatures globally were 1.54°C above pre-industrial (1850-1900) levels and September's average was the 14th month in a 15-month period when the global average surface air temperature was more than 1.5°C above pre-industrial levels.
The global average temperature for the 12 months to September was the second highest on record for any 12-month period — 0.74°C above the 1991-2020 average, and an estimated 1.62°C above the 1850-1900 pre-industrial average.
The January–September 2024 global-average temperature was 0.71°C above the 1991-2020 average, the highest on record for the period and 0.19°C warmer than the same period in 2023. It is almost certain that 2024 will turn out to be the warmest year on record, Copernicus said.
The average temperature over European land for September 2024 was 1.74°C above the 1991-2020 average for September, making it the second warmest September on record for Europe after September 2023, which was 2.51°C above average. Last month also had exceptionally high rainfall levels across much of the continent, with widespread floods across central Europe.
Last year was the hottest on record, averaging 1.45°C above pre-industrial temperatures.
