2023's June-July-August season was the warmest on record globally by a large margin, as El Niño conditions continued to develop.[1]September 2023 was the warmest September on record globally, with an average surface air temperature 0.5 °C above the temperature of the previous warmest September (2020).[2]
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^"August Climate Bulletins / Summer 2023: the hottest on record". Copernicus Programme. 6 September 2023. Archived from the original on 8 September 2023.
^"Copernicus: September 2023 – unprecedented temperature anomalies; 2023 on track to be the warmest year on record". climate.copernicus.eu. Copernicus Programme. 5 October 2023. Archived from the original on 5 October 2023.
