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UK Faces Second Mid-July Heatwave with Mid-30s Temperatures

Record-breaking heat in June strained hospitals, transport infrastructure as well as power grids under prolonged high pressure.

New Yorkers cross 41st Street and Fifth Avenue in Manhattan during a heatwave on June 25, 2025 in New York City.
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Overview

  • Forecast models from Net Weather, WX Charts and the Met Office indicate a new UK heatwave from July 11 to 17 with daytime highs of 34–37 °C in East Anglia, London and Birmingham.
  • The UK Health Security Agency and national weather services are monitoring elevated daytime and overnight temperatures and advising vulnerable groups to take extra precautions.
  • England recorded its hottest June on record, capped by a peak of 34.7 °C at St James’s Park on July 1, marking the year’s highest temperature so far.
  • Southern and eastern Europe endured June heatwaves with temperatures above 40 °C that triggered health emergencies, wildfires in western Turkey and low Rhine water levels hampering shipping.
  • Met Office scientists warn that human-induced climate change has made extreme summer heat events up to 100 times more likely and raises the prospect of future 40 °C days.