The Met Office has issued a heatwave warning for the next few days.
This heatwave alert means that there is a 60 per cent chance of temperatures reaching 30 degrees or higher on at least two consecutive days with the intervening nights reaching at least 15 degrees.
Hot weather can be uncomfortable for many people, but can be dangerous for the very old, very young and those with chronic illnesses who feel the effects more acutely.
Over exposure to the sun can cause heat exhaustion, with symptoms including hot skin, heavy sweating, nausea and vomiting and tiredness. Anyone who has these symptoms, should be moved to somewhere cool and given cold drinks.
Here are some practical tips on how to stay cool and cope with the hot weather:
* Drink regularly - cold drinks are better
* Apply sunscreen that has a high sun protection factor (SPF) and UVA protection "“ sunscreen with an SPF of 50 offers the best level of protection
* Wear sunglasses when out in the sun to reduce the risk of UV rays damaging your eyes
* Remember to take extra care with young children, as their skin is delicate and more easily damaged by the sun.
* Wear suitable clothing - loose, light, cotton materials are recommended
* If you can, avoid going out in the hottest part of the day (11am - 3pm)
* Avoid extreme physical exertion
* If you have to go out in the heat, walk in the shade, apply sunscreen and wear a hat and light scarf
* Switch off electrical equipment such as computers which are not being used - these generate heat even in standby mode
Val Thomas, Consultant in Public Health at Cambridgeshire County Council, said: "Heatwaves can be dangerous and it's important for everyone to keep out of the heat during the hottest times of the day, avoid sunburn and drink lots of cool drinks. We're also asking people to look out for people at risk - the elderly, ill or very young people to make sure they are able to keep cool."
If you are worried about what to do, either for yourself or somebody you know who you think might be at risk, go to NHS Choices at www.nhs.uk/summerhealth. Alternatively ring NHS 111 or visit your chemist.