Heat waves

A heat wave is an extended period of unusually high temperatures and often high humidity. They are expected to become more frequent and more severe in future due to climate change. People affected by heat waves can suffer from shock, become dehydrated and develop serious heat illnesses. Heat waves can also worsen chronic cardiovascular and respiratory diseases.


Migrants seek shelter from extreme heat under trees in Gevgelija, Former Yugoslav Republic of Macedonia in 2015

Do's and don'ts

  • Monitor weather updates to know when heat waves are expected
  • Drink plenty of water, even if you don't feel thirsty
  • Avoid sport and heavy exercise during peak hours of the day
  • Check on your family, friends and neighbours to make sure they are okay
  • Don't leave children or animals in parked vehicles
  • Eat enough food, ideally smaller and more frequent meals
  • Seek medical help if you experience symptoms of heat sickness

Do you know how to prepare for a heat wave?

Watch: how to prepare for a heat wave