Public Health England’s (PHE’s) heatwave mortality monitoring helps to provide information on excess deaths observed during heatwaves each year to inform public health actions. As per the annual heatwave plan, this is carried out each time the Met Office issues a Level 3 heatwave alert.
During period of Level 3 heatwaves in the summer months, we estimate excess daily mortality levels using the baseline death registration data from the General Register Office (GRO). At the end of the summer, excess daily mortality levels for the heatwave periods is estimated using death registration data from the Office for National Statistics (ONS) and summarised in the attached reports.
Heatwaves are predicted to increase in frequency and intensity as a result of climate change. The health impacts of these events can be significant particularly for vulnerable populations when excess mortality can occur.
The Heatwave Plan for England, produced jointly by PHE, the Department of Health and Social Care and NHS England is intended to protect the population from heat-related harm to health.