This page has some additional resources about the health effects of heat and how to keep yourself, clients and loved ones safe.

Download these educational resources:

Starting in 2019, Toronto Public Health no longer issues heat warnings to the public as they are already communicated broadly by Environment & Climate Change Canada. Learn more about Toronto’s Hot Weather Response.

2020 Heat Warnings

  • May: 26 & 27
  • June: 9 & 10, 20 – 22
  • July: 2 – 10, 17 – 19, 25 – 27
  • August: 9 & 10, 23 & 24

2019 Heat Warnings

  • July: 5 & 6, 18 – 21, 26 – 30

Previous Heat Warnings

Data is available on the number of Heat Warnings from 2001 to 2018.