June was the warmest June recorded in Western Europe since records began. This was revealed Wednesday in the climatological bulletin from the European climate service Copernicus.
With an average surface temperature of 20.49 degrees Celsius, June 2025 will now be recorded as the warmest June ever in Western Europe. It was 0.06 degrees warmer than June 2023, which previously held the record.
The record temperature was mainly driven by two heat waves, one from June 17 to 22 and one from June 30 to July 2. During the second heat wave, temperatures rose to a record average for June of 24.9 degrees Celsius in Western Europe, with peaks of up to 46 degrees in Spain and Portugal.
In the past, higher average daily temperatures have been recorded in Western Europe, but these were always much later in the summer. The heat waves were partly due to record temperatures in the western Mediterranean.
Last month, a record temperature of 27 degrees Celsius was recorded there, the largest anomaly or deviation ever for sea surface temperature.
For all of Europe, the thermometer reached 18.46 degrees in June. This makes it the fifth warmest June on record for the continent as a whole.
It is also striking that the global average does seem to reflect a slight “cooling.” June 2025 averaged 16.46 degrees Celsius. This was 0.20 degrees cooler than last year’s record, but also 0.06 degrees cooler than June 2023. This makes it the first month to fall below the 2023 record levels again.
