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Western Japan sees earliest end to rainy season on record
WESTERN JAPAN, JUN 27 – The rainy season ended up to 22 days earlier than average in western Japan due to a strong Pacific high-pressure system, prompting heat warnings from the Japan Meteorological Agency.
- The Japan Meteorological Agency announced on July 18, 2025, that the rainy season ended unusually early in western Japan including Shikoku, Chugoku, and Kinki regions.
- This earliest end since 1951, except southern Kyushu, occurred because a high-pressure system pushed the rainy front northward ahead of schedule.
- Temperatures are expected to reach 35 degrees Celsius or higher in cities like Nagoya, Kyoto, Naha, Kumagaya, and Kagoshima due to this high-pressure system.
- The JMA warned about heatstroke risks during the extremely hot period from July 18 to 24 and urged people to take precautions against heat-related illness.
- This early end and rising temperatures imply a shift in seasonal patterns, which may increase health risks and extend the summer heat period across Japan.
46 Articles
46 Articles
[NHK] Western and eastern Japan are mostly covered by high pressure and are sunny, and the end of the rainy season has been announced in various parts of western Japan. If this is confirmed, southern Kyushu...
Japan’s Rainy Season Ends in Western Japan; Areas See Earlier than Average End to Season
Rainy season appears to have ended in various parts of western Japan, it was announced Friday. According to the Japan Meteorological Agency, the season ended in the southern Kyushu region 18 days earlier than usual and 19 days earlier than last year. In the northern Kyushu region, the season ended 22 days earlier than usual and 20 days earlier than last year.
Today, June 27th (Friday), the Meteorological Observatory announced that the rainy season has ended in northern Kyushu, southern Kyushu, Chugoku, Shikoku, and Kinki regions. The rainy season ended much earlier than average in all regions, and in northern Kyushu, Chugoku, Shikoku, and Kinki, it ended in June for the first time in recorded history (preliminary figures).
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