Overview
- The Met Office confirmed on Tuesday that the June–August mean temperature was 16.5°C, beating last year’s record and making 2026 the warmest UK summer in observations dating to 1884.
- A rapid attribution study by the Met Office found human-driven climate change made this summer about 130 times more likely, turning an event that would be once-in-a-millennium naturally into roughly a one-in-nine-year occurrence today.
- The season included five distinct heatwaves, a record 40 days of 30°C or higher, a summer peak of 38.1°C at Kew Gardens and a new June record of 38.0°C at Lingwood.
- Authorities reported major impacts: over 1,100 wildfire responses in England and Wales by mid-August, most of England and all of Wales officially in drought, reservoir stocks well below average and the UK Health Security Agency estimating 2,877 heat-associated deaths in England for May–June.
- Met Office scientists say summers like 2026 match projections for a 2.5–3°C warmer world, short-term forecasts point to intermittent warm spells in early September, and officials have introduced water restrictions, firefighting operations and targeted support for farmers while warning hotter, drier summers are likely to recur without emissions cuts.