Is there a September heatwave coming in the UK? All you need to know

Need to know Is there a September heatwave coming in the UK? All you need to know The UK is set for a brief burst of warm, summer-like weather this weekend and into Monday, and the Met Office has given a verdict on whether an official heatwave is on the way All you need to know about whether the UK is set for another heatwave - With temperatures expected to reach up to 24C or 25C across parts of England, Wales, and Scotland between this weekend and Monday (14 September), there's online chatter suggesting a September heatwave could be approaching following five widespread official heatwaves in the UK during the 2026 summer. - The Met Office points out that while a short spell of warm, summer-esque weather will impact the nation over the coming days, the conditions don't satisfy the official structural requirements for a heatwave. For a heatwave to be triggered, the UK needs at least three consecutive days of temperatures surpassing particular regional thresholds, such as 28C in Greater London. - Brits should anticipate warm and humid conditions over the weekend and into Monday (September 14), along with some heavy rainfall and gusty winds in northern regions. From Tuesday (September 15), a cooler and more unsettled Atlantic weather pattern makes a comeback, delivering typical autumnal downpours and stronger winds, especially to the north and west. - Long-range forecasts from the Met Office indicate high pressure might develop towards the final week of September. This could deliver more stable, dry conditions with some "rather warm days", although widespread extreme heat isn't presently expected. - The Met Office has confirmed that summer 2026 became the hottest on record for the UK, following repeated bouts of extreme heat that surpassed the record set just the previous year. The relentless periods of high pressure and parched conditions also led the Environment Agency to declare official droughts across vast swathes of England and Wales throughout the summer. READ MORE: UK weather maps turn red hot as 26C September scorcher looms - see 18 warmest counties