June was hottest June on record globally, Copernicus says This past June was the hottest June globally on record in terms of sea and air temperatures, according to a statement by the EU-backed Copernicus Climate Change Service. "The month was the warmest June globally at just over 0.5°C above the 1991-2020 average, exceeding June 2019 – the previous record – by a substantial margin," the Copernicus report said. FRANCE 24's Environment Editor Valerie Dekimpe tells us more.