Key Facts
• Heavy rain warnings issued for Hokkaido due to the rainy season front.
• Japan Sea regions may experience intensified rainfall; Kanto and Okinawa expect sunshine.
• Forecasted high temperatures are approximately 5°C above average nationwide.
• Persistent rainy and cloudy weather expected as the rainy season front stalls.
• High humidity from rain will increase the feeling of muggy heat.
• Thunderstorms likely on certain days; summer-like heat to continue.
• No record-breaking heat, but temperatures remain above average with ongoing summer days.
• Weather map and satellite images captured at 3:00 AM on June 22, 2025.
Summary
Japan continues to experience the effects of the rainy season front, with heavy rain warnings in Hokkaido and intensified rainfall in Japan Sea regions. Kanto and Okinawa, however, are expected to see some sunshine. Nationwide temperatures are forecasted to remain about 5°C above average, bringing unseasonably warm weather. The stalled rainy season front will lead to prolonged rainy and cloudy conditions, with occasional thunderstorms. While record-breaking heat is not anticipated, summer days will persist, and high humidity will amplify the sensation of heat. Residents are advised to remain cautious of heat-related illnesses and sudden weather changes.
