According to the Japan Meteorological Agency, the rainy season ended in western Japan on June 27th.
This is the earliest end of the rainy season in the history of Japanese meteorological observations.
It looks like the hot summer will be long in Japan this year. Please be careful.
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The end of the rainy season (Tsuyu-Ake) in Japan for 2025 is expected to occur on the following dates by region, based on the latest forecasts from the Japan Meteorological Agency and major weather information sites.
Region Expected End of Rainy Season Average Year Last Year Okinawa Around June 21 Around June 20 Around June 20 Amami Around June 29 Around June 22 Around June 22 Southern Kyushu Around July 15 Around July 16 Around July 16 Northern Kyushu Around July 19 Around July 17 Around July 17 Shikoku Around July 17 Around July 17 Around July 17 Chugoku Around July 19 Around July 21 Around July 21 Kinki Around July 19 Around July 18 Around July 18 Tokai Around July 19 Around July 18 Around July 18 Kanto-Koshin Around July 19 Around July 18 Around July 18 Hokuriku Around July 23 Around July 31 Around July 31 Southern Tohoku Around July 24 Around August 1 Around August 1 Northern Tohoku Around July 28 Around August 2 Around August 2
Please note that these are forecasts and actual dates may vary depending on weather conditions.
Regional Summer Weather and Temperature Forecasts After the Rainy Season
Okinawa & Amami area
Weather: After the rainy season, full-fledged summer arrives with many sunny days. This is also the season when typhoons become more frequent, so please pay attention to the latest weather information.
Temperature: Daytime highs often exceed 30°C (86°F) with high humidity. Heatstroke precautions are essential.
Kyushu, Shikoku, Chugoku area
Weather: After the rainy season, strong sunshine continues, and consecutive extremely hot days (over 30°C/86°F) are expected. Localized thunderstorms (evening showers) are also likely.
Temperature: Temperatures may reach around 35°C (95°F), and in urban areas, tropical nights (when temperatures stay above 25°C/77°F at night) are expected.
Kinki, Tokai, Kanto-Koshin area
Weather: After the rainy season, the Pacific high pressure brings prolonged sunny weather and the peak of summer. Sudden thunderstorms or heavy downpours may occur due to unstable atmospheric conditions in the afternoon.
Temperature: Major cities like Osaka, Nagoya, and Tokyo may see many days above 35°C (95°F) with high humidity, making it feel even hotter. Frequent hydration and proper use of air conditioning, both indoors and outdoors, are important.
Hokuriku & Tohoku area
Weather: The end of the rainy season is slightly later here, but once it ends, sunny days increase. On the Sea of Japan side, the Foehn phenomenon can cause extremely high temperatures.
Temperature: Days over 30°C (86°F) will become more frequent. In inland areas like Yamagata and Niigata, temperatures can approach 35°C (95°F). While northern Tohoku can be relatively cool, recent years have also seen extremely hot days.
Summer Climate Advice for International Visitors
Heatstroke Prevention: Japanese summers are very humid, making it feel hotter than the actual temperature. Stay hydrated, replenish salts, and take regular breaks.
Clothing: Light, breathable clothing is recommended. Since air conditioning can be strong indoors, carrying a light jacket or shawl is helpful.
UV Protection: The sun is very strong, so use hats, sunglasses, and sunscreen.
Be Prepared for Sudden Weather Changes: Sudden thunderstorms or heavy rain can occur in the afternoon, so carrying a folding umbrella is convenient.
Typhoon Information: From late July through August is typhoon season, so check the latest weather updates before and during your trip.
Summary
In 2025, the rainy season is expected to end in late June in Okinawa, from mid to late July in regions from Kyushu to Kanto-Koshin, and in late July in Tohoku. After the rainy season, full-fledged summer arrives nationwide, with many days of extreme heat and tropical nights. Japanese summers are hot and humid, so be mindful of heatstroke and sudden weather changes. Please take adequate precautions for a safe and comfortable stay in Japan.
