Temperatures reached 30.5C in Frittenden, Kent. It was the UK's hottest day of the year so far. Forecasters warned that Monday could become the hottest May day on record.
The Met Office said this was the first time since 2012 that the UK reached 30C in May. The hot weather may continue over the May Bank Holiday weekend. Temperatures could reach 33C in southern England and the Midlands. On Sunday afternoon, they may reach 31C in the south and about 26C in the north.
Health officials have sent heat health alerts. A heat health alert is a warning that hot weather may hurt people's health. Amber alerts are in place for the East Midlands, West Midlands, the east of England, London, and the south-east. They last until 5pm on Wednesday. Yellow alerts are in place in other areas. Amber is more serious than yellow.
The heat also matters for music fans. May Bank Holiday starts the festival season. Olivia Dean, Sub Focus, and Kate Nash are appearing at festivals. Adult fans who drink alcohol can lose more water from the body. This is called dehydration. A reusable water bottle can be filled again at water points.
Clothes, tents, and medicine also need care. Tight clothes can stop sweat from cooling the body. White, light clothes can help. Polyester tents can hold heat like small greenhouses. Heat can also affect insulin, inhalers, and EpiPens. High UV levels mean the sun is strong. The UV index may reach seven in Manchester on Sunday.
Hot weather also changes home costs. Rising electricity prices and hotter weather could make cooling more costly this summer. Utility bills are regular bills for services like electricity. Like outdoor concerts, humid commutes, and air-conditioner costs, heat is a health, culture, and money story.