UK records 2025 sunniest year on record

According to the Met Office, the country logged an average of 1,622 hours of sunshine up to December 15, surpassing the previous record set in 2003.

High pressure brings clear skies

The weather agency attributed the record-breaking sunshine to an exceptional spring followed by prolonged periods of clear skies during the summer months. Frequent high-pressure systems reduced cloud cover across much of the country, allowing sunshine to persist for extended periods.

Hottest summer follows bright conditions

The prolonged sunshine also contributed to Britain recording its hottest summer on record. In September, the Met Office reported that the average summer temperature reached 16.10°C, exceeding the previous high of 15.76°C recorded in 2018.

Climate change and weather extremes

Scientists continue to warn that human-driven climate change is increasing the frequency and intensity of extreme weather events worldwide. However, the Met Office noted that current climate projections do not show conclusive evidence of a long-term trend in sunshine levels directly linked to climate change.

Long-term sunshine trends

The agency observed that the UK has generally become sunnier since the 1980s, although the reasons remain unclear. Natural climate variability may play a role, while reduced atmospheric aerosols could also be a contributing factor.

A sharp contrast to recent years

By contrast, the Met Office noted that 2024 was the dullest year for sunshine since 1998, highlighting the sharp variability in recent weather patterns.