The rainy season has arrived in the Kanto-Koshin region, including the Tokyo metropolitan area, at about the average time of year.
The Japan Meteorological Agency reported that the rainy season began in the Kanto-Koshin region and parts of central Japan as of June 7, 2026. The arrival occurred around the average timing for the year. With the start of the season, authorities emphasize preparedness for potential heavy rain and landslides.