Key Facts
• August 25: Temperatures soared across western and eastern Japan, with intense heat.
• Tokyo recorded a high of 36.0°C, marking its 8th consecutive extreme heat day.
• Shiga’s Higashiomi reached 37.9°C, Kyoto’s Fukuchiyama and Gifu’s Mino hit 37.6°C.
• Gunma’s Kiryu recorded 37.3°C, surpassing body temperature in many areas.
• Tokyo’s annual extreme heat days (35°C+) reached 21, nearing the record of 22 in 2023.
• August 26 forecast: Extreme heat expected from southern Tohoku to Kyushu, Tokyo to hit 35°C.
Summary
On August 25, a severe late-summer heatwave gripped western and eastern Japan, with temperatures exceeding body heat in several regions. Tokyo experienced its 8th consecutive extreme heat day, reaching 36.0°C, bringing the total to 21 such days this year. Shiga’s Higashiomi recorded the highest temperature at 37.9°C, followed by Kyoto’s Fukuchiyama and Gifu’s Mino at 37.6°C. Tokyo is now one day away from tying its record of 22 extreme heat days set in 2023. The heatwave is expected to persist on August 26, with extreme heat forecasted across a wide area from southern Tohoku to Kyushu, including Tokyo, which is predicted to reach 35°C.
