An Amber heat health alert has been issued today for the South East region, warning of increased risks to health during a period of hot weather.
The alert runs from 12pm on Tuesday 11th August to 9pm on Friday 14th August 2026.
Hot weather health risks
Prolonged heat can make people unwell and worsen existing medical conditions. The risks include heat exhaustion and, in more serious cases, heatstroke.
The UK Health Security Agency (UKHSA), working with the Met Office, advises residents to monitor news and weather updates and take steps to protect themselves and those around them.
How to stay safe in the heat
People can reduce the risk of becoming unwell by avoiding the sun between 11am and 3pm, wearing loose clothing, a wide-brimmed hat and sunglasses and drinking plenty of water.
It’s also important to apply sunscreen with a minimum sun protection factor (SPF) of 30+ and ideally higher.
Cooling down quickly
If you become too hot, moving to a cooler place, removing extra clothing, and using cold drinks, sprays, or ice lollies can help lower your body temperature.
Other effective methods include placing a cold pack under your arms or on the back of your neck, and closing curtains or windows that face the sun.
Who is most at risk
Certain groups are more vulnerable in high temperatures. These include people over 65, children under five and those with long-term health conditions.
Others at risk include people who live alone, need support to look after themselves, or who have dementia, mental health challenges or issues with drugs or alcohol.
Recognising heat exhaustion
Heat exhaustion is not usually an emergency, but must be treated quickly. Symptoms include tiredness, weakness, headache, muscle cramps, nausea, sweating and intense thirst.
If someone shows these signs, help them cool down immediately to prevent heatstroke.
Heatstroke is a medical emergency
Heatstroke occurs when the body is no longer able to cool itself. It is a serious condition requiring urgent medical attention.
Symptoms include confusion, poor coordination, a racing heart, hot but dry skin and seizures.
Call 999 straight away and begin cooling the person down while waiting for help.
Heat alert system
The heat alert system is designed to give early warning to health and care services, emergency responders, charities, and government bodies when temperatures may affect public health.
The system is managed jointly by UKHSA and the Met Office.
Article edit
3.45pm 11th Aug 2026 – Start time updated from 9am to 12pm
