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UK temperatures forecast to exceed 30C as another heatwave imminent

Pack away the brollies, Britain. Another heatwave is bearing down on us, and this one’s shaping up to be a proper scorcher that sticks around long after you’ve given up looking for the sun cream.

Temperatures are forecast to climb above 30C across parts of England, with the south and southeast likely to feel the worst of it. Or the best of it, depending entirely on whether you’ve got a garden or a commute.

Met Office meteorologist Stav Danaos has warned that this isn’t your typical two-day wonder. The heat is expected to persist significantly longer than recent warm spells, driven by a high-pressure system drawing hot air up from continental Europe. We’re talking a sustained bake, not just a Tuesday fluke.

“This spell looks like it could last considerably longer than what we’ve seen so far this summer,” Danaos explained, adding that overnight temperatures may also stay unusually high, giving little relief once the sun goes down.

That last point matters more than people often realise. It’s the warm nights that push heat stress into genuinely dangerous territory, particularly for older residents and those in poorly ventilated flats and terraces. Sleeping becomes a grim lottery of open windows and tepid fans.

The NHS is already urging people to check in on elderly neighbours and relatives, keep hydrated, and avoid direct sun between 11am and 3pm. Straightforward advice, but worth repeating when half the country decides to spend Sunday afternoon in a car park at a garden centre.

Rail operators have also issued early notices, with some lines in the southeast preparing speed restrictions to protect tracks that can buckle under sustained high temperatures. If you’re planning to travel, build in time for delays.

Reservoirs in parts of England are still recovering from last summer’s drought conditions, and water companies are quietly keeping a close eye on demand. A prolonged heatwave could see hosepipe bans return faster than anyone would like.

The bigger question, of course, is whether summers like this are becoming the norm rather than the exception. Britain’s climate is shifting, and 30C is starting to feel a lot less like a novelty.

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