Key Facts
• Japan Meteorological Agency issued a “High Temperature Early Weather Warning” on July 24.
• Warning excludes southern Kyushu and Okinawa, covering most of Japan.
• Unusual heat expected from July 30 to August 1, occurring once every 10 years.
• Heatstroke risk remains high; hydration and shade are essential for outdoor activities.
• Regional temperature deviations (5-day average):
– Hokkaido: +3.0°C or higher
– Tohoku: +2.8°C or higher
– Kanto-Koshin: +2.1°C or higher
– Hokuriku: +2.2°C or higher
– Tokai: +1.9°C or higher
– Kinki: +1.6°C or higher
– Chugoku: +1.8°C or higher
– Shikoku: +1.4°C or higher (from August 1)
– Northern Kyushu (including Yamaguchi): +1.5°C or higher (from August 1)
• Heat alerts will be issued if extreme conditions are forecasted within a week.
• Heatstroke warning alerts will be issued for imminent high-risk weather conditions.
Summary
Japan is bracing for severe heat in August, with the Meteorological Agency issuing a “High Temperature Early Weather Warning” for most regions, excluding southern Kyushu and Okinawa. From July 30 to August 1, temperatures are expected to reach levels seen only once every decade. Regions like Hokkaido and Tohoku may experience temperature deviations of +3.0°C and +2.8°C, respectively. The agency warns of heightened heatstroke risks and advises precautions such as staying hydrated and seeking shade. Heat alerts and heatstroke warnings will be issued as necessary. Residents are urged to remain vigilant and prioritize health and safety during this period.
