Key Facts
• September 15 (Monday, Respect for the Aged Day) recorded over 35°C in Tokai by morning.
• Morning highs: Shinshiro, Aichi at 35.3°C; Shimanto, Kochi at 35.1°C.
• Afternoon highs: Hamamatsu and Nagoya forecasted at 36°C; Kofu, Gifu, Kyoto, Osaka, and Hita at 35°C.
• Kyoto may hit its 60th scorching day this year, breaking the 2024 record of 54 days.
• Hita could reach its 61st scorching day, nearing the 2024 record of 62 days in Dazaifu.
• Afternoon: Unstable atmospheric conditions from Kanto to Kyushu due to rising temperatures and moist air.
• Thunderstorm probability exceeds 70% in inland and mountainous areas of western and eastern Japan.
• Signs of sudden weather changes: dark clouds, thunder, or sudden cold winds.
• Extreme heat to persist until September 18, with Tokyo possibly reaching 35°C.
• Cooler weather expected from September 19, with increased clouds and rain.
• Advice: Stay hydrated, avoid outdoor activities during storms, and prepare for temperature fluctuations.
Summary
On September 15, the final day of the long weekend, Tokai experienced scorching heat exceeding 35°C by morning, with afternoon highs reaching 36°C in some areas. Kyoto and Hita are on track to break annual records for scorching days. However, unstable atmospheric conditions from Kanto to Kyushu may lead to sudden thunderstorms, with a high probability of lightning in inland and mountainous regions. Residents are advised to monitor weather changes, avoid outdoor activities during storms, and stay hydrated. The extreme heat will persist until September 18, with Tokyo potentially recording its latest scorching day. Cooler weather is expected from September 19, bringing relief from the intense heat but requiring preparation for temperature fluctuations.
