Central and south-east England experienced 14 consecutive days without recorded rainfall, the longest unbroken dry spell in the UK this century [1, 2].
This weather event underscores the increasing volatility of British summers and the growing risk of severe drought. As high-pressure systems become more persistent, the lack of precipitation threatens agriculture and water security across the region.
Met Office forecasters said the dry spell occurred in central and south-east England, including Somerset [1, 3]. The phenomenon occurred during a heatwave in 2024, where a persistent high-pressure system and unusually high temperatures prevented rain from falling [3, 4].
While some reports indicate the heatwave in southern England continued for 13 days [4], the lack of rainfall persisted for 14 days [1]. This absence of precipitation marks a historic milestone for the current century [1, 2].
These conditions are part of a broader pattern of rising temperatures. For historical context, the record for the most days exceeding 30°C in a single calendar year remains 34 days, a milestone set in 1995 [3].
Scientists said these extreme weather patterns are linked to climate change, which can trap high-pressure systems over the UK for extended periods [3, 4]. These "blocking" patterns prevent the moist, Atlantic air that typically brings rain to the British Isles, leading to prolonged dry periods and intense heat.
“the longest unbroken dry spell in the UK this century”
The emergence of the longest dry spell of the century suggests that the UK's climate is shifting toward more extreme oscillations. When high-pressure systems stall, they create a feedback loop of heat and dryness that can lead to soil degradation and increased wildfire risks, necessitating a shift in how the UK manages its water infrastructure.
