September 2026 was the third-warmest September for Europe
The Copernicus Climate Change Service (C3S) has just published its latest monthly Climate Bulletin, which focuses on key climate trends for September 2026.
The C3S bulletin reports that September 2026 was the second warmest September ever recorded globally, with a global-average surface air temperature exceeding 1.5°C above the pre-industrial levels and with exceptionally high temperatures persisting across parts of Europe after an extreme July and August.
In Europe, the average temperature was 16.26°C, 1.54°C above the 1991-2020 average, and the month was the third-warmest September on record. September 2026 also tied as the warmest September on record for western Europe. The largest anomalies occurred over southern France, Portugal, Spain and parts of Italy, reaching 4–6°C above average.
This data visualisation, produced using C3S data, shows anomalies and extremes in surface air temperature across Europe during September 2026. Much of the west and the south of the Europe falls within the much-warmer-than-average, and warmest categories. By contrast, warmer-than-average conditions have been recorded across parts of northern and eastern Europe.
More information is available here.
