Hottest May day for nearly 80 years as parts of UK hit heatwave threshold
Highest temperatures of 2026 in England, Wales and Northern Ireland as Kew Gardens in London reaches 32.3C
England, Wales and Northern Ireland recorded their highest temperatures of 2026 on Sunday, which was also the UK’s hottest May day for at least 79 years.
Kew Gardens in west London recorded 32.3C (90.1F), Cardiff 27.4C and Armagh 23.4C.
Scotland reached 23.5C in Edinburgh, just 0.1C below the record of 23.6C set in Aboyne on 1 May.
The first area of the UK to hit the heatwave threshold was Santon Downham in Suffolk, which reached the criteria of recording temperatures of more than 27C for three consecutive days at 11.30am on Sunday.
The other areas officially in heatwave conditions are Heathrow, Kew Gardens and Northolt in London, Benson in Oxfordshire, Brooms Barn in Suffolk, and High Beach and Writtle in Essex.
Temperatures could rise again on Monday, with possible highs of between 33C and 34C.
The climate crisis is increasing the likelihood of extreme heat. Large parts of western Europe are experiencing similar peaks, and the French national weather agency, Météo-France, said periods of exceptional heat are to be expected “more and more often and more and more prematurely, and to be more and more intense”.
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