Tips to keep your home and yourself cool in hot weather

Image source, Getty Images By Esme Stallard , Climate and science reporter  and  Visual Journalism Team , BBC News Published 18 July 2022 Updated 22 June 2026 When temperatures soar, there are a number of simple things you can do to help keep your home and yourself cool. Here are six practical tips from experts. 1. Let in cool air and encourage air flow Open windows on opposite sides of the house to encourage air flow - releasing trapped warm air and allowing in cooler air. Do this when the air temperature outside is cooler than inside, which tends to be overnight or in the early part of the day. In flats which have windows on one side only, open doors and use a fan to encourage airflow. Hot air rises within houses, so if you have loft vents or windows you can open them to release some of the heat. The hot air can otherwise get trapped on the second floor, where you may be trying to sleep. Extra insulation can also help keep heat out in the summer, as well as reducing your energy bills and usage in the winter. When is it too hot to walk your dog? Published 20 hours ago How to sleep in the heat Published 22 hours ago What is humidity and why does it make us feel so uncomfortable? Published 11 June 2025 Heatwaves: The New Normal? How hot is too hot? From heat labs to firefighting helicopter pilots and wineries, we look at how extreme heat impacts people and environments in the UK. Watch on iPlayer 2. Keep warmer air out during the day In the heat of the day it is best to keep your windows shut and blinds or curtains closed - especially on the side of your home where the sun is shining. 3. Use a fan to enhance the breeze Fans are a relatively cheap and energy efficient way to keep air moving and can help you stay cool. Using a freestanding fan for a 24-hour period typically costs between 15p and 31p, according to the latest guidance from the Energy Saving Trust , external . Putting the fan in front of an open window can encourage the fresh air from outside to be blown throughout the room - as long as it is cooler outside. Placing ice cubes in front of the fan can cool the air being blown in your direction. You can use more than one fan to create a cross current. Prof Mike Tipton of the University of Portsmouth says it is important to understand how the body works. "Fanning the face improves thermal comfort most, but fanning the whole body helps lower body temperature more," he says. But he warns that using a fan when temperatures are above 35C may make things worse, as you are ultimately just directing hot air towards your body. Air conditioning is a much more expensive option than using fans. The Energy Saving Trust says 24 hours of continuous use costs between £4.84 – £6. 4. Limit hot activities Ovens and cookers emit a lot of heat into the home during and after their use. Sticking to cold foods such as salads - especially during the hottest times of the day - can stop unnecessary heat being generated. Other appliances, such as washing mac