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- May 21, 2025
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The rainy season in Japan, known as tsuyu (梅雨), usually begins in early summer and brings weeks of steady rainfall across the country. On May 16, 2025, the Japan Meteorological Agency released its latest forecast, including the estimated start and end dates for each region. This article covers the current forecast and will be updated with new information as it becomes available.
Source: Japan Meteorological Agency
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Latest Rainy Season Forecast for 2025
The Japan Meteorological Agency shared its latest rainy season forecast on May 16, 2025. Here are the estimated start and end dates of the rainy season.
*This information was announced on May 16. It will be updated as soon as new details become available.
#1: The Onset Of The Rainy Season
| Area | 2025 | 2024 |
|---|---|---|
|
Okinawa |
Not available yet |
May 21st |
|
Amami |
May 19th |
May 21st |
|
Southern Kyushu |
May 16th |
June 8th |
|
Northern Kyushu |
Not available yet |
June 17th |
|
Shikoku |
Not available yet |
June 17th |
|
Chugoku |
Not available yet |
June 20th |
|
Kinki |
Not available yet |
June 17th |
|
Tokai |
Not available yet |
June 21st |
|
Kanto-Koshin |
Not available yet |
June 21st |
|
Hokuriku |
Not available yet |
June 21st |
|
Southern Tohoku |
Not available yet |
June 23rd |
|
Northern Tohoku |
Not available yet |
June 23rd |
#2: The End Of The Rainy Season
| Area | 2025 | 2024 |
|---|---|---|
|
Okinawa |
Not available yet |
June 20th |
|
Amami |
Not available yet |
June 22nd |
|
Southern Kyushu |
Not available yet |
July 16th |
|
Northern Kyushu |
Not available yet |
July 17th |
|
Shikoku |
Not available yet |
July 17th |
|
Chugoku |
Not available yet |
July 21st |
|
Kinki |
Not available yet |
July 18th |
|
Tokai |
Not available yet |
July 18th |
|
Kanto-Koshin |
Not available yet |
July 18th |
|
Hokuriku |
Not available yet |
July 31st |
|
Southern Tohoku |
Not available yet |
July 24th |
|
Northern Tohoku |
Not available yet |
August 2nd |
