UK hosepipe bans spread as heatwave hits record 35C highs

Britain is sweltering through its most relentless heatwave in recorded history, with temperatures topping 35C on Thursday and millions of households now facing hosepipe bans as water companies scramble to protect dwindling reserves.

Thursday marked the eighth day this calendar year that temperatures exceeded 34C — smashing the previous record of seven days set just last summer. The Met Office confirmed readings of 35.2C at Heathrow Airport by mid-afternoon, with forecasters warning the heat is unlikely to break before the weekend at the earliest.

Records tumble across the country

It’s not just the headline figures that are alarming meteorologists. Night-time temperatures in London failed to drop below 20C for the fifth consecutive evening — what scientists call a “tropical night” — leaving millions unable to sleep and pushing electricity demand to its highest point since January as air conditioning units ran through the dark hours. Birmingham recorded 33.8C, its hottest July reading in 15 years. Even parts of Scotland reached 28C, drawing bewildered tourists to Loch Lomond beaches that more closely resembled the Mediterranean than the Highlands.

Hosepipe bans tighten their grip

Seven water companies have now imposed restrictions covering approximately 19 million people across the South East, Midlands and parts of Yorkshire. South East Water extended its ban on Thursday to include garden sprinklers, paddling pools and the washing of private vehicles — violations carry fines of up to £1,000.

Reservoir levels tell the story bluntly. Bewl Water in Kent is sitting at 54% capacity, compared to 81% at the same point last year. Thames Water reported that daily demand has surged to 2.8 billion litres — roughly 300 million litres above the seasonal average.

A spokesperson for the Environment Agency said: “We’re asking everyone to think carefully about how they use water right now. Every litre saved genuinely matters, and the situation in some catchments is becoming critical.”

Health services under pressure

The NHS has issued heat-health alerts across England, urging people to check on elderly neighbours and avoid strenuous outdoor activity between 11am and 3pm. Ambulance services in the South East reported a 22% spike in call-outs on Wednesday compared to the weekly average. Still, many didn’t heed the warnings — beaches at Bournemouth were packed by 9am, with car parks full before the heat peaked.

Heat-related hospital admissions have quietly doubled compared to the same week last year, according to figures from NHS England.

What comes next

The Met Office says there’s a 40% chance of a thunderstorm breaking the heat across central and southern England by Sunday — but that won’t bring meaningful rainfall to ease the water crisis. Hydrologists say reservoirs need weeks of sustained, heavy rain to recover, and with August historically dry in recent years, the hosepipe bans could stretch well into September.

But the more uncomfortable truth is this: eight days above 34C used to be unthinkable. Now it’s a record waiting to be broken again.