France set a new national May temperature record and the United Kingdom recorded its hottest May day since records began, with multiple western French départements placed under yellow heat alerts. Temperatures reached 34.3°C in Nantes and 34.8°C at Kew Gardens, London, exceeding seasonal averages by up to 11°C in parts of France, the UK, and Spain. Météo-France indicated the heatwave would likely persist through the end of the week.