Japan Heatwave: Temperatures to Reach 37 Degrees in Major Cities

A severe heatwave gripped eastern and western Japan on August 24, 2026, driving temperatures to dangerous highs across multiple major urban centers, according to reports from the Japan Broadcasting Corporation (NHK).

Temperatures were projected to reach 37 degrees Celsius in Nagoya, Osaka, Fukui, Hiroshima, and Takamatsu. Meanwhile, officials at the public broadcaster noted that Kofu City and Fukuoka faced slightly lower but equally oppressive highs of 36 degrees Celsius.

Regional Temperature Forecasts

The scorching conditions impacted daily life and transportation corridors across multiple prefectures as the persistent summer heat system maintained its grip. Municipal authorities across the affected regions urged residents to take precautions against heatstroke, limit unnecessary outdoor activities, and utilize air conditioning effectively.

Forecasters tracking the weather pattern across Honshu and Kyushu indicated that high-pressure systems were trapping warm air over densely populated areas. The public broadcaster advised individuals to monitor local weather updates closely as conditions remained severe throughout the day.