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UK's Hottest May Day 34.8°C, Climate Change Amplifies Heat

5/26/2026

32 6 Full Breakdown

Summary

UK Heat Record

The UK recorded its hottest May day when Kew Gardens in London reached 34.8 °C, surpassing the previous May high of 32.8 °C set in 1922 and 1944.
Eight English sites, including Heathrow and Kew Gardens, recorded temperatures above 34 °C, met heat-wave criteria after three days and prompted an amber health alert.
Met Office scientists said breaking the May record is now about three times more likely because of climate change.

Summary

Islands Break Heat

Jersey recorded 29.2 °C in St Helier, the highest May temperature, surpassing the 2003 record of 28.9 °C.
Guernsey reached 30.7 °C, setting a new May record above the previous 26.8 °C.
South West fire services warned that heightened wildfire danger makes countryside barbecues unsafe.
Experts said that cold sea water during the heatwave raises the risk of cold-water shock for swimmers.

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UK Heat Record

The UK recorded its hottest May day when Kew Gardens in London reached 34.8 °C, surpassing the previous May high of 32.8 °C set in 1922 and 1944.
Eight English sites, including Heathrow and Kew Gardens, recorded temperatures above 34 °C, met heat-wave criteria after three days and prompted an amber health alert.
Met Office scientists said breaking the May record is now about three times more likely because of climate change.

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