July was one of the three hottest months of July since records began.
It was marked by intense and drawn out heatwaves around Europe, alongside the lowest recorded sea ice for the month in the Antarctic.
The report by the Copernicus Climate Change Service said this July was slightly warmer than 2016 and cooler than 2019 but the margin was too small to make clear ranking possible.
The report also showed it was a drier-than-usual month for a great deal of Europe.
The low rainfall affected agriculture and increased the risk of wildfires.
August meanwhile has shown little signs of a let up, as heatwaves have continued.