On July 22 the Japan Meteorological Agency issued heat-stroke alerts across much of the country and designated the day as a 'brutally hot day' under a new category for temperatures of 40°C or higher. Forecasts indicated Kumagaya and Nagoya could reach 40°C, marking the second consecutive day above the threshold. Government data recorded 4,580 heat-related hospitalizations and seven deaths between July 6 and July 12, with more than 100,000 hospitalizations reported for the full 2025 summer season.