Heatwave Peaks With Records Tumbling Across the Country
The summer’s third heatwave reaches its peak this weekend, with the heat shifting west: highs of 32-34C are forecast for Wales and south-west England, and much of the country stays above 30C. The UK has now recorded eight days above 34C in 2026 — the most on record — and has topped 35C in May, June and July of the same year for the first time. A provisional 34.4C was reached at Wisley, in Surrey, on Thursday. Amber and yellow heat-health alerts run across most of England until 9pm on Sunday, with an extreme wildfire risk.
The records are the story as much as the temperature: a run of 34C-plus days without modern precedent, and the first calendar year to break 35C across three separate months, are the signature of a warming baseline rather than a single hot spell. The danger is cumulative — nights that do not cool let heat stress build in bodies, hospitals, power networks and railways alike, which is why the alerts span most of England and the health agency warns of a rise in deaths among the over-65s. The westward shift brings the peak to Wales and the south-west, regions less used to it. Heat deaths lag the peak by days, keeping the risk live into next week even as temperatures ease. Wildfire risk is extreme, water is scarce, and the transport network is already straining. Watch for any escalation to a red alert, the confirmed peak temperature, and the admissions data that will measure the true toll once the heat breaks.