A prolonged heatwave gripping England and Wales shows no sign of relenting, with temperatures forecast to remain above 30°C well into next week, the Met Office has confirmed. A provisional maximum of 33°C was recorded in Yelverton, a village in Devon in southwest England, on Saturday — significantly above seasonal norms. While a risk of thunderstorms may develop in parts of the south from Monday, most of the country is expected to remain dry, sunny, and intensely hot in the days ahead.

This year has already broken several historic benchmarks. 2026 is the first year on record in which temperatures of 35°C have been recorded in the UK on six separate days, surpassing the previous record of five days set in both 1976 and 2020. It is also the first year in which such temperatures have been experienced across three distinct calendar months. The UK Health Security Agency (UKHSA) has issued amber heat health alerts — indicating that significant impacts on health and social care services are likely — for the West Midlands and the south-west of England, valid through Wednesday. Yellow alerts, denoting serious but slightly lower risk, cover London, the south-east, east of England, the East Midlands, and the north-west. Authorities are particularly concerned for people aged 65 and over and those with underlying health conditions.

Emergency services have raised the wildfire threat to "extreme" across parts of the country. The London Fire Brigade urged residents to avoid using disposable barbecues, warning that the combination of dry heat, wind, and prolonged drought has created dangerous conditions. Separately, several deaths have been reported linked to cold-water shock — a hazard that rises sharply during heatwaves as people seek relief in rivers and reservoirs. The UKHSA warned of an increased risk of water-related incidents nationwide.

The sustained heat is also straining water supplies. Several major water companies have introduced hosepipe bans affecting millions of customers across Hampshire, the Isle of Wight, the east of England, areas of Kent, and Cambridge — where a restriction of this kind has not been seen in three decades. The bans follow a record warm spring and successive heatwaves that have significantly depleted reserves.

Beyond immediate public safety, ecologists warn of longer-term consequences for Britain's landscapes. Research highlights that the combination of extreme heat and drought — increasingly termed a "hot drought" — is pushing the country's trees beyond their physiological limits. Britain's native species evolved under cool, wet summers, and are struggling to adapt to conditions now regularly exceeding 40°C. The 2022 heatwave alone killed 400 trees at the Royal Botanic Gardens at Kew in London, and scientists project that up to half of Kew's 11,000 trees could be vulnerable to climate change by 2090. As heatwaves become more frequent and severe, experts say the cumulative stress on trees, infrastructure, and public health underscores the urgency of long-term adaptation planning.