The UK is bracing itself for a fifth heatwave in 2026, with temperatures expected to climb to a sweltering 36°C across 27 counties. As the mercury rises, a series of heat health warnings have been issued to alert the public to the potential risks.
According to the latest weather charts from WXCharts.com, a significant surge of hot weather is forecast to affect large parts of England, primarily impacting the South, South East, the Midlands, and eastern England. This heatwave is anticipated to intensify over the coming days, particularly from 13 August onward.
While temperatures are set to soar, regions such as Scotland and Northern Ireland are expected to experience milder conditions, with temperatures mostly in the teens and low twenties. Similarly, western parts of Wales and northern England are likely to avoid the most intense heat.
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In response to the expected high temperatures, the UK Health Security Agency (UKHSA) has issued yellow heat health alerts for the East Midlands, West Midlands, South East, South West, East of England, Yorkshire and the Humber, and London. These alerts will be in effect from 9am on Saturday until 9pm on Tuesday, warning that the hot weather may impact public health and wellbeing.
The Met Office has also confirmed the return of heatwave conditions across multiple UK regions next week, with temperatures climbing steadily through the weekend and rising sharply into the middle of the week. Meteorological experts predict that temperatures could reach 36°C in parts of East Anglia and south-east England by Thursday.
Deputy chief forecaster Mike Silverstone explained:
“Temperatures will climb through the weekend and, more significantly, through much of next week. After a brief dip on Monday, high pressure will move across the UK before settling to the east, allowing a southerly flow to develop.
“A fairly widespread heatwave is likely across large parts of England and Wales, with hot conditions developing in places.
“The heat is expected to peak for much of England, Wales, Northern Ireland and Scotland on Wednesday, with up to 34°C possible in parts of central and southern England and southeast Wales.
“East Anglia and south-east England, however, could see temperatures even higher on Thursday.
“Humidity levels are also expected to increase through the week, which may make conditions feel more uncomfortable, particularly overnight.”
The UKHSA’s long-range forecast for 12 to 21 August adds:
“A mixed start is likely to this period, with some rain or showers in the north and quite breezy conditions while in the south it will be mostly dry, sunny and hot, even very hot in some places.
Southern parts are likely to turn cooler and fresher next weekend though.”
Residents are advised to take precautions during this period of sustained high temperatures, particularly vulnerable groups who may be more susceptible to heat-related illnesses.