Key Facts
• On July 25, 2025, a heatstroke alert was issued for 28 prefectures.
• The alert covers all regions in the Kanto area.
• The alert was announced at 5:00 AM due to a heat index exceeding 33.
• Residents are advised to monitor indoor temperatures and use air conditioning.
• Frequent hydration and salt intake are recommended to prevent heat-related illnesses.
• Outdoor activities and strenuous exercises should be postponed or canceled.
• Vulnerable groups, including the elderly, children, and individuals with disabilities, require extra care.
• The alert is based on the international heat index, considering temperature, humidity, and radiant heat.
• Information on the alert is available on the Ministry of the Environment’s website and official LINE account.
Summary
A heatstroke alert was issued on July 25, 2025, for 28 prefectures, including all of Kanto, due to dangerous heat conditions with a heat index exceeding 33. Authorities urge residents to stay cool, hydrated, and cautious, especially for vulnerable groups. Outdoor activities and intense physical exertion should be avoided. The alert, based on international heat index standards, highlights the severe risk of heat-related illnesses. Updates are accessible via the Ministry of the Environment’s website and LINE account.
