Climate Bulletins | #Copernicus
June 2025 highlights:
June 2025 was the third-warmest June globally, with an average ERA5 surface air temperature of 16.46°C, 0.47°C above the 1991-2020 average for June.
June 2025 was 1.30°C above the estimated 1850-1900 average used to define the pre-industrial level. It was only the third month in the last 24 with a global temperature less than 1.5°C above the pre-industrial level.
The average temperature over European land for June 2025 was 18.46°C, 1.10°C above the 1991-2020 average for June, making the month the fifth-warmest June in the record.
The average sea surface temperature (SST) for June 2025 over 60°S–60°N was 20.72°C, the third-highest value on record for the month, 0.13°C below the June 2024 record.
Arctic sea ice extent was 6% below average, the second lowest monthly extent for June in the 47-year satellite record. During the latter part of the month, the daily extent was consistently the lowest for the time of year.
In June 2025, it was drier than average in western and southern Europe, as well as much of the UK and regions of southern Scandinavia, and parts of western Russia.