Heat alert issued for parts of England as 30C temperatures loom

A heat alert is in force across swathes of England this week, with forecasters warning that temperatures could climb as high as 30C and prompting health officials to urge vulnerable people to take precautions. The UK Health Security Agency issued the warning as a ridge of high pressure builds from the south, dragging warm air up from continental Europe.

Which areas are affected?

The alert covers a broad stretch of central and southern England, including the Midlands, East Anglia, and parts of the South East. London is expected to feel the full force of the heat, with the capital potentially hitting 29C or 30C by midweek. Forecasters at the Met Office placed the probability of those peak temperatures at around 60 to 70 percent, though they cautioned that an approaching weather system could disrupt the pattern by the end of the week. The alert is classified at Level 2, meaning it’s a step below the most severe designation but still serious enough to trigger responses from NHS trusts and local councils.

Health warnings and who is most at risk

Officials wasted no time in pushing out guidance. A spokesperson for the UK Health Security Agency said: “We know that heat can be genuinely dangerous, particularly for older people, young children, and those with underlying health conditions. Simple steps — staying hydrated, keeping out of direct sun between 11am and 3pm, and checking on neighbours — can make a real difference.”

The NHS has flagged that heat-related hospital admissions tend to spike when temperatures stay elevated overnight as well as during the day. In a heat event in the summer of 2022, excess deaths in England reached an estimated 2,800 over just a few weeks. That’s a figure health authorities haven’t forgotten.

How long will the heat last?

So far, forecasters are predicting the peak warmth to arrive Tuesday into Wednesday, before Atlantic weather fronts nudge temperatures back down towards the low 20s by the weekend. But that window is enough to cause real discomfort — and real risk — for those without air conditioning or access to shade.

Commuters in London and other major cities will feel it first, with tube carriages and buses notorious for trapping heat. Transport for London has said it’s monitoring conditions and has water available at stations across the network.

What people should do

Advice from public health bodies boils down to a few basics: drink water regularly even if you don’t feel thirsty, close curtains on south-facing windows during the hottest hours, and avoid strenuous activity outdoors at peak times. And if you’re worried about an elderly relative or a neighbour living alone, call them. It’s a small thing that can matter enormously.

With climate scientists consistently warning that extreme heat events will become more frequent across the UK in coming decades, summers like this one are likely to feel less exceptional as the years go on.