England heat deaths are on track to hit a record high this summer, according to official data from the UK Health Security Agency (UKHSA). The agency reported an estimated 2,877 fatalities during the May and June heatwaves, nearly matching the all-time record of 2,985 deaths set in 2022, with August still ahead.
Health Secretary Yvette Cooper expressed condolences, stating, “My thoughts are with all those who have lost loved ones as a result of the long and intense heatwaves.” The UKHSA analysis attributes 753 deaths to the late May heatwave and 2,124 to the late June event, almost double the summer total for 2025.
Understanding the UKHSA Heat Death Data
The UKHSA estimates excess mortality by comparing death rates during heatwaves to baseline rates at similar times without extreme heat. This method provides a clear picture of the health impact of rising temperatures.
Dr Ross Thompson, principal environmental public health scientist at UKHSA, warned, “As the climate becomes warmer, we can expect periods of hot weather to become longer, more frequent and more extreme.” He stressed the need for individuals, communities, and systems to prepare for higher temperatures and protect the most vulnerable.
Record Heat Deaths: A Growing Crisis

The current figures are similar to an earlier estimate published on 13 July, which used a different statistical approach. Both analyses confirm that heatwaves, intensified by fossil-fuel-driven climate change, are becoming more severe. The late June heatwave across western Europe was described as the most severe and widespread ever recorded.
Looking ahead, a looming super El Niño could exacerbate heat in 2027, and temperatures will continue to rise until carbon emissions reach net zero. This makes public health preparedness more critical than ever.
Heatwave Impact Comparison Table
| Heatwave Period | Estimated Deaths | Record Year Comparison |
|---|---|---|
| May 24-27 | 753 | 2022 Summer Total: 2,985 |
| June 21-28 | 2,124 | 2025 Summer Total: ~1,500 |
| Summer 2027 (projected) | Potentially exceeding 3,000 | N/A |
Key Takeaways from the Heat Death Report
- Heat deaths are rising sharply – 2,877 deaths in just two heatwaves this summer.
- Vulnerable groups are most at risk – elderly, children, and those with pre-existing conditions.
- Climate change is a key driver – fossil fuel emissions make heatwaves more frequent and intense.
- Preparedness saves lives – communities and health systems must adapt to hotter summers.
How to Protect Yourself and Others During Heatwaves
Stay hydrated, avoid strenuous outdoor activity during peak heat, and check on elderly neighbours or relatives. The NHS advises keeping homes cool by closing curtains during the day and using fans or cool showers.
For those with chronic conditions, consult your GP about heat-related risks. Local councils often provide cooling centres and support for vulnerable residents—reach out to community services if needed.