Hot weather information

19 June 2017

Most of us welcome hot weather, but when it's too hot for too long there are health risks. Make sure the hot weather doesn't harm you or anyone you know.

(Adapted from NHS Choices)

Most of us welcome hot weather, but when it’s too hot for too long there are health risks. Make sure the hot weather doesn’t harm you or anyone you know.

The very young, the elderly and the seriously ill are the groups who are particularly at risk of health problems when the weather is very hot. In particular, very hot weather can make heart and breathing problems worse. 

An average temperature of 30°C by day and 15°C overnight would trigger a health alert (this figure varies slightly around the UK). These temperatures can have a significant effect on people's health if they last for at least two days and the night in between.

Further information

Please see NHS Choices for detailed information:

Tips for coping in hot weather

The following advice applies to everybody when it comes to keeping cool and comfortable and reducing health risks:

  • Shut windows and pull down the shades when it is hotter outside. You can open the windows for ventilation when it is cooler.
  • Avoid the heat: stay out of the sun and don't go out between 11am and 3pm (the hottest part of the day) if you're vulnerable to the effects of heat.
  • Keep rooms cool by using shades or reflective material outside the windows. If this isn't possible, use light-coloured curtains and keep them closed (metallic blinds and dark curtains can make the room hotter).
  • Have cool baths or showers, and splash yourself with cool water.
  • Drink cold drinks regularly, such as water and diluted fruit juice. Avoid excess alcohol, caffeine (tea, coffee and cola) or drinks high in sugar.
  • Listen to alerts on the radio, TV and social media about keeping cool.
  • Plan ahead to make sure you have enough supplies, such as food, water and any medications you need.
  • Identify the coolest room in the house so you know where to go to keep cool.
  • Wear loose, cool clothing, and a hat and sunglasses if you go outdoors.
  • Check up on friends, relatives and neighbours who may be less able to look after themselves.

If you're worried about yourself or a vulnerable neighbour, friend or relative, you can contact the local environmental health office at your local authority.

Environmental health workers can visit a home to inspect it for hazards to health, including excess heat. Visit GOV.UK to find your local authority.

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