All Regions Europe Hottest May day record broken as London area hits 33.5C It comes a day after the highest May temperature was recorded in at least 79 years My London – WeatherRead More About Author OTW Observer See author's posts Post navigation Previous An Early “Decoration Day” CelebrationNext The best London parks to visit in a heatwave crowned Related Stories Overnight temperatures during London heatwave as Met Office forecasts record-breaking heat All Regions Europe Overnight temperatures during London heatwave as Met Office forecasts record-breaking heat June 19, 2026 New Met Office London heatwave warning for hottest ever June day – Exact date it will end All Regions Europe New Met Office London heatwave warning for hottest ever June day – Exact date it will end June 19, 2026 Met Office London heatwave verdict for this weekend with warning over major difference to May All Regions Europe Met Office London heatwave verdict for this weekend with warning over major difference to May June 17, 2026