Japan’s Meteorological Agency announced the arrival of the rainy season, known as *tsuyu*, in northeastern Japan on June 21st. The announcement, made at 11:00 AM, cited persistent rainfall and a forecast of continued cloudy and wet conditions for the next week due to low-pressure systems and a weather front. This year’s onset of the rainy season in the region is six days later than average but two days earlier than in 2023. With this declaration, all of Japan except for Hokkaido is now officially experiencing the rainy season. The *tsuyu* period is crucial for agriculture, providing essential water resources, but also brings risks of flooding and landslides. Residents are advised to prepare for prolonged periods of rainfall.