• Early heatwave warnings

    Welcome to the
    Sussex heatAlert service

    Free service for residents of Sussex.

  • Simple And Easy To Use

    Sign up today for the
    heatAlert service

What is Heat Alert?

heatAlert is a free service for residents of Sussex which provides advance warning as to when a heatwave will occur so that there is time to plan and take preventative action. It operates from June to September annually.
You can register all year round.


Heat Alert levels

Level 1

Heatwave and Summer preparedness programme Conditions back to Normal
1 June – 15 September

Level 2

Alert & Ready - Heatwave is forecast

Level 3

Heatwave Action - temperature reached in one or more Met Office National Severe Weather Warning Service regions

Level 4

Central government will declare a Level 4 alert in the event of severe or prolonged heatwave affecting sectors other than health

Heat Alert Twitter Feed