www.metoffice.gov.uk
On September 1, 2025, the Met Office confirmed that summer 2025 is the warmest on record for the UK. With a mean temperature of 16.10°C, it surpassed the previous record of 15.76°C set in 2018. This summer’s heat is now 70 times more likely due to climate change.
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Key Takeaways
- Summer 2025 is UK's warmest on record.
- 70 times more likely due to climate change.
- 16.10°C mean temperature surpasses 2018 record.
- Four heatwaves, highest at 35.8°C.
- Below-average rainfall, variable across regions.
- Above-average sunshine levels recorded nationwide.
The summer of 2025 pushed 1976 out of the top five warmest summers since records began in 1884. High-pressure systems and warm seas contributed to this heat. England had its warmest June, and July was the fifth warmest on record.
- Summer 2025’s mean temperature was 1.51°C above the long-term average.
- Four heatwaves occurred, with a peak temperature of 35.8°C in Kent.
- Rainfall was below average, with 84% of the seasonal average recorded.
- Sunshine levels were above average, reaching 110% across the UK.
As climate change reshapes weather patterns, record-breaking summers may become the new normal.
With rising temperatures, the UK must prepare for more frequent heatwaves and changing weather conditions.
