Residents across Wellington and West Somerset have been advised to take extra precautions after a heat warning was upgraded.
The UK Health Security Agency has now issued an amber alert, ahead of soaring temperatures which the Met Office now expects will reach 30 degrees Celsius.
The alert came into force at noon on Tuesday, September 5 and is expected to remain in place until Sunday, September 10.
The alert covers the entire south west region in addition to seven other English regions. Residents have been warned of an increased risk to health, particularly the over-65s.
Dr Agostinho Sousa, Head of Extreme Events and Health Protection at UKHSA, said:
"Many of us will welcome the hot weather for the coming days, but it is important to take sensible precautions while enjoying the sun and look out for those who are more vulnerable to the effects of heat.
"We advise you to check on older family members, friends, or neighbours and those with heart or lung conditions.
"Staying hydrated and keeping cool is crucial for everyone during hot weather, while enjoying the sun."
The UKHSA has issued the following advice:
- Know the symptoms of heat exhaustion and heatstroke and what to do if you or someone else has them
- Keep out of the sun at the hottest time of the day, between 11am and 3pm
- If you are going to do a physical activity (for example, exercising or walking the dog), plan to do these during times of the day when it is cooler, such as the morning or evening
- Keep your home cool by closing windows and curtains in rooms that face the sun
- If you do go outside, cover up with suitable clothing, such as an appropriate hat and sunglasses, and seek shade and apply sunscreen regularly
The Met Office forecasts that temperatures in Wellington and across Exmoor will reach 27 degrees Celsius this week.