It's important during a heatwave to be aware of the health risks and to take extra care when you're out and about.
babies and young children
those who already have health issues such as heart or breathing problems.
Tips for coping in a heatwave
Follow these tips to help you cope during hot weather:
check the weather forecast so that you're prepared if hot weather is predicted
try to avoid going out during the hottest part of the day (11am to 3pm)
if you do go out, cover up with a hat or light scarf and wear light, loose-fitting cotton clothes
apply sunscreen of at least SPF15 and wear UV sunglasses
stay hydrated by drinking plenty of water or diluted fruit juice and avoid excess alcohol, caffeine or drinks high in sugar
open windows in the evening when it's cool.
For more information, visit the NHS Choices website.
For water saving tips and advice, visit the Thames Water website.