The yellow heat health alert is in effect from10AM on 15/08/2026 until 9AM on 18/08/2026 across the South East. The yellow alert has a matrix score of 7. This means:
Minor impacts are likely across health and social care services, including:
- increased use of healthcare services by vulnerable people
- greater risk to life of vulnerable people
- increased potential for indoor environments to become very warm
- water-related incidents may increase, including risks from cold-water shock and drowning
You can see all the weather health alerts currently in place across England on the UKHSA data dashboard.
☀️ Read our Extreme Summer Weather Guide