The UK is bracing for another heatwave this week as high pressure returns, with temperatures expected to reach 32-33°C in southern England. Despite a brief, cooler reprieve this weekend, the Met Office confirms the ongoing heat health alerts remain active as the country navigates a record-breaking summer of extreme temperatures.
A Record-Breaking May and Ongoing Heat Health Alerts
The severity of the heat was underscored earlier this week when Kew Gardens reached 35.1°C, shattering both the previous station record of 29.3°C and the standing UK May record of 32.8°C. Across the country, 163 stations recorded new maximum temperature benchmarks in the low to mid-30s, including significant spikes in Oxfordshire, Surrey, Bedfordshire, and Cambridgeshire.
While a north-easterly breeze has brought a temporary drop in temperatures for some areas this weekend, the respite is brief. The UK Health Security Agency has maintained amber and yellow heat health alerts across large parts of England, currently set to remain in force until 21:00 BST on Sunday. Officials emphasize that the danger lies not just in the daytime peaks, but in the lack of nighttime cooling.
“What makes this event particularly noteworthy is the combination of very high daytime temperatures and persistently warm nights.”
Met Office
Regional Variations and the Weekend Shift
The weather experience has not been uniform across the UK. While England and Wales have faced the brunt of the heat, Northern Ireland and western Scotland encountered a much wetter spell
as the weekend began. Meteorologist Aiden McGiven noted that while these regions remained cooler, with highs of 18-20°C, the pattern remained unsettled.
By Sunday, the influence of a strengthening north-easterly wind is shifting the hottest conditions away from the North Sea coasts and further west. Areas such as south-east Wales and south-west England may still see highs of 31-33°C, even as coastal regions experience a more noticeable drop to 18-21°C. This contrast highlights the influence of geography and wind direction on how the heatwave is felt locally.
Water Restrictions and Wildfire Risks
The prolonged dry conditions have forced significant infrastructure responses. More than five million people are now under hosepipe bans as water companies struggle to meet increased demand. Anglian Water has implemented its first ban in a decade, while Southern Water and South East Water have enacted their own restrictions. Additionally, Cambridge Water announced its first hosepipe ban in 30 years.
Beyond water supply concerns, the dry, windy conditions have created an extreme environment for fire hazards. The National Fire Chiefs Council has issued stern warnings to the public regarding the volatility of the countryside.
“When the weather stays hot and dry, it only takes one spark to start a wildfire. What can begin as a small fire can spread incredibly quickly, putting people, homes, wildlife and our countryside at risk.”
National Fire Chiefs Council spokesperson
Safety experts are also urging caution regarding open water. Despite the high air temperatures, water bodies remain dangerously cold, posing a risk of cold water shock. Ashley Jones, Head of Water Safety & Education at Royal Life Saving Society UK (RLSS UK), warned that sudden immersion can lead to an involuntary gasp, rapid breathing and panic,
which can be fatal even for strong swimmers.
Outlook for Next Week: A Second Heatwave Phase
The cooling seen this weekend does not signal the end of the heatwave. High pressure is expected to build again next week, drawing in warmer air from northern France. Forecasters anticipate that temperatures will climb back into the 25-32°C range across England and Wales by Wednesday or Thursday.
The country has already recorded six days with temperatures exceeding 35°C—a new calendar year record. While the intensity of the coming week may not reach the extreme highs of the past seven days, the criteria for a heatwave are likely to be met in more regions. The primary uncertainty remains the duration of this high-pressure system; current models suggest the heat could persist until at least the following weekend, with little relief from rainfall until the low pressure currently sitting over the English Channel potentially brings showers to the far south-west by Monday.
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