UKHSA estimates 2,877 heat-associated deaths in May and June 2026
UKPulse Health Desk
Rapid assessment by the UK Health Security Agency (UKHSA) indicates 2,877 heat-associated deaths during hot weather in May and June 2026. These interim figures are almost double those reported in summer 2025.
- An estimated 753 deaths were associated with the May heat episode (24-27 May) and 2,124 with the June heatwave (21-28 June).
- The June heatwave lasted 8 days and triggered only the second red heat-health alert ever issued in England.
- May and June 2026 broke Met Office monthly temperature records for England.
The UK Health Security Agency (UKHSA) has estimated 2,877 heat-associated deaths occurred during two periods of hot weather in May and June 2026. This rapid early assessment suggests a significant increase compared to the 1,504 excess deaths observed in summer 2025.
The May heat episode, between 24 and 27 May, was associated with an estimated 753 deaths. A further 2,124 deaths were linked to the June heatwave, which lasted from 21 to 28 June.
The June heatwave, which saw a red heat-health alert issued for England, recorded exceptional temperatures, including 37.7C at Lingwood, Norfolk, on 26 June. May also saw a record 31.5C at Kew Gardens on 26 May. These interim figures are nearing the annual record reported by UKHSA in 2022.
Dr Ross Thompson, Principal Environmental Public Health Scientist at UKHSA, highlighted the danger of very hot weather, especially for vulnerable individuals. Health and Social Care Secretary Yvette Cooper noted the serious impact of the heat on people's health and the NHS.
Why this matters: These interim figures suggest 2026 could see the highest number of heat-associated deaths on record, potentially surpassing the 2,985 recorded in 2022. The findings underscore the importance of the heat-health alerting system in providing early warnings.
What this means for you: It is important to look out for your health and help those more vulnerable to hot conditions. Seek help if you are worried about your own wellbeing or anyone else's.