When is the best season to visit Japan? Rainy season, snow, and heatwaves

Famous places include Sapporo, Niseko, and Furano.

There are differences between the north and south sides. In the north (Japan Sea side, such as Sapporo), it snows a lot in the winter. Summer is comfortable and dry.
In the south (Pacific Ocean side, such as Kushiro), it is very cold in the winter but doesn't snow much. In the summer, it is very foggy.

Famous places include Amanohashidate, Ine, Kanazawa, and Kinosaki.

Temperatures vary between the north(such as Aomori) and south(such as Miyazu), but summers are dry and mostly sunny, while winters are rainy or snowy throughout the year, with a rainy season from late June to early July. Typhoons rarely come.

This is the region where most of Japan's population is concentrated (such as Tokyo, Kyoto) and where industrialization is most advanced. Summers are extremely hot and humid, but winters are sunny. There is a rainy season from late June to early July, and typhoons often come from August to October. This is also an area that is prone to earthquakes and tsunamis.

Famous places include Hida Takayama, Shirakawa-go, and Hakuba.

Humidity is low and temperature is low throughout the year. It is generally cloudy. It snows a lot in winter. June is the rainy season.

Famous places include Hiroshima, Shimanami, and Kobe.

It gets really hot in the summer. Humidity is generally low. It is sunny in the summer and winter, but it tends to rain in the spring and fall.

Famous places include Okinawa and Ogasawara.

It is warm all year round, there is no rainy season, and typhoons come frequently.