With millions of people across five continents experiencing scorching heat last month, the European Union's climate agency, Copernicus Climate Change Service (C3S), confirmed on Monday that June was the warmest on record.
It also marked the 12th consecutive month of global temperatures reaching or breaking the 1.5 degrees Celsius threshold.
According to C3S ERA5 data, every month since June last year has been the warmest such month on record.
In January, the world completed an entire year with the mean surface air temperature exceeding the 1.5-degree Celsius threshold. June was the 12th consecutive month with monthly average temperatures above the 1850-1900 pre-industrial average.
At the 2015 UN climate talks in Paris, world leaders committed to limiting the global average temperature rise to 1.5 degrees Celsius above the pre-industrial period to avoid the worst impacts of climate change. However, a permanent breach of the 1.5-degree Celsius limit specified in the Paris Agreement .