June heatwave cost pupils 15 million learning hours
At least 760,000 children in England and Wales missed more than 15 million hours of lessons during June’s heatwave as over 1,700 schools closed or ended classes early, according to a study. RSS reports do not identify the study’s sponsor, explain its methodology or quantify regional differences in disruption.
Why it matters
The estimate shows how extreme heat is increasingly affecting education infrastructure and learning time.
Sources
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Part of the September 12, 2026 brief.