Yacht News

Which summer was the hottest? Summer 2023

Earth just had its hottest summer in recorded history, data released Wednesday (Sept. 6) by the World Meteorological Organization (WMO) reveals.

It was the hottest August on record – by a large margin – and the second hottest ever month after July 2023, according to the Copernicus Climate Change Service ERA 5 dataset. August as a whole is estimated to have been around 1.5°C warmer than the preindustrial average for 1850-1900, according to the C3S monthly climate bulletin.

Earth had hottest three-month period on record
Earth had hottest three-month period on record

Global sea-surface temperatures have been especially high over the past five months and remained at record-high levels throughout April, May, June and July 2023. In August 2023, the sea-surface temperature was 69.76 degrees Fahrenheit (20.98 degrees Celsius), surpassing the previous March 2016 heat record every single day that month.


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