Key Facts
• August 30: Dangerous heat observed in Kanto and Tokai regions.
• Mie Prefecture’s Kuwana City recorded 40.5°C, highest nationwide at 2:00 PM.
• Saitama’s Hatoyama Town reached 40.3°C, second highest.
• Tokyo hit 38.5°C, marking its highest temperature in 2025 and first 38°C+ in 7 years.
• 8 locations recorded 39°C+, while 214 locations experienced 35°C+ heat.
• High-pressure system and Foehn effect contributed to rapid temperature rise.
• Dangerous heat expected to persist on August 31, especially in Tokai region.
• Precautions advised: avoid outdoor activities during peak heat, use air conditioning indoors, and stay hydrated.
Summary
On August 30, Japan experienced extreme heat, with temperatures exceeding 40°C for the first time since August 6. Mie Prefecture’s Kuwana City recorded the highest temperature at 40.5°C, followed by Saitama’s Hatoyama Town at 40.3°C. Tokyo reached 38.5°C, its highest in 2025 and the first time in seven years to surpass 38°C. A total of 214 locations recorded temperatures above 35°C, with 8 exceeding 39°C. The heat was driven by a high-pressure system and Foehn effect. Dangerous conditions are expected to continue on August 31, particularly in the Tokai region. Authorities urge the public to take precautions, including avoiding outdoor activities during peak heat, using air conditioning, and staying hydrated.
