A heatwave occurs when unusually high maximum and minimum temperatures persist for at least three days at a specific location.1 What may be a heatwave for one location, may not be considered a heatwave for a different location because temperature thresholds can be different depending on where you are.1

Heatwaves can be dangerous because they pose health risks to the most vulnerable, such as elderly people and very young children. They can also affect infrastructure like power and transport.1

If a heatwave is occurring, follow these steps:

  • Stay hydrated and drink water regularly, not just when you feel thirsty
  • Use your aircon (if you don’t have one at home, places like shopping centres and libraries are a great option).
  • Stay in the shade when you’re outside
  • Wear a hat and sunscreen, be sun smart (slip, slop, slap, seek, slide)2
  • Try to avoid exercise at the hottest part of the day
  • Check in with friends or family who might struggle with heat because of health reasons
  • Prepare an emergency plan for your house and/or your holiday destination. Check out these great videos on how to make an emergency plan and kit.
  • Ask your doctor if any medications you take might impact your body in hot weather
  • Learn how to identify and treat heat stress
  • Wear loose clothes
  • Vic Emergency Hotline: 1800 226 226
  • Wildlife Welfare: 136 186
  • Life threatening emergencies: 000

Download the Vic Emergency and Australian Red Cross RediPlan apps

  1. Australian Climate Service. Heatwaves. Australian Climate Service. N.d. Accessed June 5, 2024. https://www.acs.gov.au/pages/heatwaves
  2. Cancer Council. Be SunSmart. N.d. Accessed June 5, 2024. https://www.cancer.org.au/cancer-information/causes-and-prevention/sun-safety/be-sunsmart