Overview
- The national mean temperature reached 10.09C, surpassing the 2022 record of 10.03C and marking only the second year above 10C since records began in 1884.
- The UK recorded 1,648.5 hours of sunshine in 2025, exceeding the previous high from 2003 by 61.4 hours.
- All of the country's ten warmest years have occurred in the past two decades, with 2025 boosted by persistent high-pressure systems and unusually warm seas.
- Met Office attribution lead Mark McCarthy said observations and climate models show human-induced warming is altering the UK's climate.
- The UK results track global signals reported by WMO and Copernicus, with 2024 confirmed as the hottest year worldwide and 2025 projected to rank near the top.