Overview

• Japan recorded 41.8°C in Isesaki on August 5, surpassing a 41.6°C mark set minutes earlier and the previous 41.2°C high from July 30 in Tanba.
• It was the sixth straight day above 40°C, prompting the Japan Meteorological Agency to issue heat alerts for 44 of 47 prefectures.
• A dominant high-pressure system over the Pacific coast has brought clear skies and dangerous humidity levels to much of the country.
• Government advisories emphasize frequent hydration, salt intake, rest breaks and the use of air-conditioning to prevent heatstroke among elderly residents.
• An early end to the rainy season has exacerbated drought conditions, leading to water shortages that threaten rice cultivation and reservoir levels.