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London Schools in Heatwave - What Happens as Temperatures Hit 40C
Schools are allowing PE kit and lighter clothing as the Met Office warns temperatures could reach 38C.
On Monday, June 22, 2026, UK schools began relaxing uniform policies, making blazers and ties optional as temperatures peaked at 38C across England and Wales during an extreme heatwave.
The Met Office issued a four-day amber heat warning until Thursday, June 25, as schools face soaring temperatures and humidity with no legal maximum temperature forcing closures.
Wickford's Bromfords School and Clacton County High School have made blazers optional from Tuesday, June 23, while schools nationwide prioritize ventilation, hydration, and shade to manage extreme conditions.
The Climate Change Committee and Trades Union Congress have endorsed demands for a mandatory maximum temperature threshold, though the Department for Education is "carefully considering" such proposals.
With the heatwave persisting until Thursday, families are urged to apply sunscreen and carry refillable water bottles, as government guidance maintains schools should remain open where possible.