Six leading international datasets used for monitoring global temperatures and consolidated by WMO show that the annual average global temperature was 1.45 ± 0.12 °C above pre-industrial levels (1850-1900) in 2023.
Based on the six datasets, the ten-year average 2014-2023 was 1.20 ±0.12°C above the 1850-1900 average, factoring in a margin of uncertainty.
“Humanity’s actions are scorching the earth. 2023 was a mere preview of the catastrophic future that awaits if we don’t act now. We must respond to record-breaking temperature rises with path-breaking action,” said UN Secretary-General António Guterres.