UK Schools Close and Rail Shuts Down as Red Heat Warning Takes Effect Wednesday, France's Drowning Toll Holds at 40

Since Tuesday's peak of 34.6C at Wisley, Surrey, the UK's heatwave has shifted from a weather event into a logistics crisis. Hundreds of schools have planned at least partial closures for Wednesday, and multiple rail operators, including the UK's largest, have issued do-not-travel advisories, according to BBC News.

The Met Office's red extreme heat warning is active from 09:00 BST Wednesday through 21:00 Thursday across parts of south and central England and south Wales. That is a "danger to life" designation. The UK Health Security Agency issued a parallel red heat health alert running from 01:00 Wednesday to 23:00 Thursday.

Prof. Robin May, UKHSA's chief scientific officer, told BBC Radio 4 this is only the second red heat health warning the agency has ever issued, the first being July 2022. He noted that typically gets lost in heat coverage: this warning applies to otherwise healthy adults in their prime, not just the elderly or chronically ill. "This heat is going to be quite intense and can have very serious life-threatening effects even in people who are completely healthy," he said.

Tuesday's Results

Tuesday was forecast to be the UK's hottest June day on record, but temperatures came in 2 to 3C below predictions in south-east England after intense overnight rainfall and flash flooding in some areas. Northern Ireland hit 28.1C and Scotland 29C, both the hottest days of their year. Wales reached 32.2C.

Wednesday's forecast is worse. The Met Office says 37 to 38C in southern England is expected, with 39C not out of the question. High humidity compounds the numbers: an air temperature of 35C may feel like 41C. Some locations will not drop below 20C overnight, what meteorologists classify as a "tropical night."

The UK's all-time June record of 35.6C, set in 1976, is expected to fall. The all-time national record of 40.3C from July 2022 is not expected to be matched, according to the Met Office.

France: Toll Holds at 40, Infrastructure Bends

France's drowning death toll has held at 40 since June 18, as reported by French Prime Minister Sébastien Lecornu. He noted the victims were mainly young people. Sports and Youth Minister Marina Ferrari told French radio that too many people were cooling off in rivers and canals without accounting for the risks.

The deaths include a 13-year-old girl who entered the River Seine at Fontaine-La Port on Sunday despite not knowing how to swim. A young professional footballer remains in critical condition after being pulled from the River Rhône near Lyon, where swimming is banned, according to BBC News.

Meteo France has placed 54 of France's departments, roughly half the country, under red heat alert. Tuesday was France's hottest June day on record at an average of 29.8C. Monday's minimum average of 21.6C was its hottest recorded night.

PBS News, citing the Associated Press, reported that the Eiffel Tower adjusted closing times to the afternoon instead of late at night, and the Louvre announced it would close two hours early from Wednesday through Saturday. The Louvre stated directly: "The museum remains vulnerable and is not sufficiently adapted to climate change."

The Infrastructure Challenge

Critics of the government's response argue that the UK and much of Europe are reacting to each heatwave instead of preparing for the next one. Schools with no air conditioning close. Trains slow down because tracks buckle. Hospitals strain. The Climate Change Committee, the UK government's own independent adviser, has warned that heat adaptation has not been made a sufficient priority.

Between 2015 and 2024, the number of days exceeding 30C in the UK more than tripled compared with the 1961 to 1990 average, according to the Met Office. Six of the past ten years have exceeded 35C. Before 1990, the UK had never recorded 37C.

The counterargument is cost and probability. Retrofitting millions of homes, schools, and rail lines for temperatures that historically arrived once a decade is an enormous capital expenditure, and democratic governments face real electoral pressure to prioritize spending elsewhere.

Records are not just falling. Lizzie Kendon, professor of climate science at the University of Bristol and head of climate projections at the UK Met Office, said records are being broken by wider margins than before. Met Office projections say mid-40s temperatures in the UK are a serious possibility by 2050 if current warming trajectories hold.

PBS/AP noted that Europe is the world's fastest-warming continent, with temperatures rising at twice the global average since the 1980s, per the EU's Copernicus Climate Change Service. The WHO's Europe office said this month that more than 200,000 people across Europe died from heat-related causes over the past four years, and most of those deaths were preventable.

What Comes Next

The red warning expires Thursday at 21:00 BST. How quickly temperatures drop after that, and whether another surge follows, remains uncertain. Meteo France said the heatwave is of "still uncertain duration" and that further all-time records, regardless of season, remain possible this week. The concrete test for UK authorities is whether the school closure and rail disruption plans actually held Wednesday, and whether the UKHSA's expanded warning to healthy adults translated into behavior change, or whether emergency rooms tell a different story by Thursday morning.