Unusual May heat in the UK is expected to intensify over the bank holiday weekend, with daytime highs reaching the upper 20s Celsius in many areas. Temperatures are forecast to approach the low 30s Celsius in the week ahead, and Friday already exceeded the official heatwave threshold in London with temperatures above 28C. Bank holiday Monday could become the hottest May day on record, with south-east England forecast to near 33C. Amber heat health alerts have been issued for the Midlands, eastern and south-east England, warning of significant risk to health and social care services, especially for children and people over 65. The rest of England is under yellow alerts, with adverse effects likely for vulnerable groups. The warmest conditions are expected across central and southern England and parts of Wales, while mist and low cloud may keep temperatures lower in the far west, west Wales, and northern Scotland. Heatwave declarations for 2026 are likely to begin on Sunday as multiple areas reach a third day above the threshold, including London, the south-east, and Cardiff.
"Friday saw temperatures reach the official heatwave threshold in London where it exceeded 28C (82.4F), marking the warmest day of the year so far. It's possible bank holiday Monday could become the hottest May day on record as temperatures are forecast to approach 33C in south-east England. Amber heat health alerts have been issued by the UK Health Security Agency for the Midlands, eastern and south-east England."
"Amber alerts mean there is a risk of a significant impact across health and social care services, with children and those aged over 65 at risk of negative health implications. The remainder of England is under yellow heat health alerts, meaning adverse weather is "likely to affect vulnerable groups". This weekend, the highest temperatures are expected across central and southern England and in parts of Wales."
"Average highs at this time of year are typically in the upper teens, but some spots may see values 10 degrees higher than normal. It's likely Saturday we'll see another warmest day of the year as temperatures continue to tick upward. With mist and low cloud still hanging around in the far west of south-west England, west Wales and northern Scotland, temperatures will be lower."
"It's likely that the first heatwaves of 2026 will be declared on Sunday as a number of areas are expected to reach their third day above the heatwave threshold, including in London and the south-east, as well as Cardiff. Locally in the south Midlands and south-east England, it could hit 30C on Sunday, which would be relatively rare for May. Days exceeding 30C - known as "very hot""
Read at www.bbc.com
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