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Heat-health Alert for South East
Yellow Heat-health alert has been issued
Alert is in effect from 22 May 2026 at 9am to 27 May 2026 at 5pm.
Minor impacts are likely across health and social services, including:
- increased use of healthcare services by vulnerable people
- greater risk to life of vulnerable people
- increased potential for indoor environments to become very warm
Heatwave: how to cope in hot weather
Most of us welcome hot weather, but when it's too hot, there are health risks. During heatwaves, more people than usual get seriously ill or die. If hot weather hits this summer, make sure it does not harm you or anyone you know.
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
Learn more about how to cope in hot weather on the NHS website
Published: May 22, 2026