UK Heatwave Warning: Amber Heat Alert Issued for Berkshire and South East England As Temperatures Could Reach 34 Degrees

Health authorities across South East England have issued urgent warnings as temperatures are expected to soar above 30C, with some areas likely to experience a heatwave over the coming days. The UK Health Security Agency (UKHSA), in partnership with the Met Office, has issued an amber heat-health alert for Berkshire and surrounding regions, including London, the East of England, the South East and the South West.

The alert comes as forecasters predict temperatures could climb to 34C or higher by Tuesday. Officials have warned that the extreme heat could pose significant health risks, particularly for older adults, young children and vulnerable individuals, while also placing additional pressure on healthcare services.

Health Warnings As Heatwave Forecast in South East England

Amber warning of extreme heat affecting London & South East England https://t.co/3EkwIQfBO9 pic.twitter.com/zOTTHPHjiQ

— Met Office - SE England (@metofficeSEEng) June 19, 2026

Amber Heat Alert Issued Across South East England

The UKHSA said the amber alert indicates that significant impacts are likely across health and social care services. The agency warned of increased demand for medical assistance and urged healthcare providers to prepare for heat-related illnesses. Heatwave Alert: Central and Western Europe Brace for Heat Wave As Temperatures Forecast To Reach 40°C.

The Met Office has also issued an amber weather warning for extreme heat covering South East England and London. Forecasters said several areas are likely to meet the criteria for a heatwave as temperatures continue to rise.

NHS Urges Residents To Stay Hydrated And Avoid Midday Sun

NHS Surrey and Sussex advised residents to take precautions to reduce the risk of heat-related illnesses. Prof Andrew Rhodes, joint chief medical officer at NHS Surrey and Sussex, said simple measures such as drinking plenty of fluids, staying cool indoors and avoiding the hottest part of the day could help protect health. El Niño Officially Begins As US Scientists Warn of Potentially Record-Breaking Global Heat.

Kent County Council's director of public health, Prof Anjan Ghosh, urged residents to remain prepared, stay cool and keep hydrated during the period of extreme heat.

Ambulance Services Report Rise In Emergency Calls

South East Coast Ambulance Service said high temperatures experienced in May led to a 30% increase in 999 calls. Officials warned that similar conditions could place additional strain on emergency services in the coming days.

Health officials recommended closing curtains and windows in sun-facing rooms, wearing light clothing, seeking shade, using sunscreen and learning to recognize symptoms of heat exhaustion and heatstroke.

Water Safety Concerns Raised During Hot Weather

The UKHSA also warned that water-related incidents may increase as more people seek relief from the heat. The RNLI urged the public to exercise caution near beaches, lakes and rivers, noting that cold-water shock remains a serious risk despite warm air temperatures.

The warning follows recent incidents in which two teenage boys died in separate water-related accidents during periods of hot weather. The RNLI advised anyone struggling in the water to "float to live" by lying on their back, keeping their head tilted back and remaining calm until help arrives.

(The above story first appeared on LatestLY on Jun 20, 2026 07:36 AM IST. For more news and updates on politics, world, sports, entertainment and lifestyle, log on to our website latestly.com).