The Met Office has issued a rare Level 4 extreme heat warning due to the exceptionally high temperatures expected on Monday and Tuesday, which could be as high as 40C in London.
Tips for coping in the heat
Look out for those who may struggle to keep themselves cool and hydrated. Older people, those with underlying conditions and those who live alone are particularly at risk.
If you live alone, ask a relative or friend to phone to check that you are not having difficulties during periods of extreme heat.
Stay cool indoors: Close curtains on rooms that face the sun to keep indoor spaces cooler and remember it may be cooler outdoors than indoors.
If going outdoors, use cool spaces considerately.
Drink plenty of fluids and avoid excess alcohol.
Never leave anyone in a closed, parked vehicle, especially infants, young children or animals.
Try to keep out of the sun between 11am to 3pm, when the UV rays are strongest.
Walk in the shade, apply sunscreen and wear a wide-brimmed hat, if you have to go out in the heat.
Avoid physical exertion in the hottest parts of the day.
Make sure you take water with you, if you are travelling.
Why is a heatwave a problem?
The main risks posed by a heatwave are:
- not drinking enough water (dehydration)
- overheating, which can make symptoms worse for people who already have problems with their heart or breathing
- heat exhaustion and heatstroke
Who's most at risk?
A heatwave can affect anyone, but the most vulnerable people are:
- older people – especially those over 75
- those who live on their own or in a care home
- people who have a serious or long term illness – including heart or lung conditions, diabetes, kidney disease, Parkinson's disease or some mental health conditions
- those who may find it hard to keep cool – babies and the very young, the bed bound, those with drug or alcohol addictions or with Alzheimer's disease
- people who spend a lot of time outside or in hot places – those who live in a top floor flat, the homeless or those whose jobs are outside
For more information visit the NHS website.