London’s best lidos and outdoor pools as the UK gets rare red warning for extreme heat

In Hyde Park? Head to Serpentine Lido to cool off (Picture: AFP)

People across the UK have been warned of a risk to life ‘for even the healthy population’ after a rare red weather warning for extreme heat was issued for parts of the country.

Temperatures could reach up to 40C on Wednesday, with the UK Health Security Agency issuing red heat health alerts for the East Midlands, West Midlands, East of England, London, South East, and South West....