Yamanashi is one of several regions in Japan, with temperatures that range from 5°C (41°F) in January to 28°C (82°F) during the peak of August. We've based our full climate overview on data from Fujikawaguchiko, the region's most prominent city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
In Yamanashi, the months of May, June, September and October bring pleasant weather, with average temperatures ranging between 19°C (66°F) and 25°C (77°F).
The coldest months are usually in January, February and December.
Precipitation in Yamanashi varies considerably throughout the year. The wettest conditions occur in September with 258 mm (10 in) of rain, while December stays relatively dry with 78 mm (3.1 in). The region experiences its rainy season during June, July, September and October, when monthly rainfall can range from 227 mm (8.9 in) to 258 mm (10 in).
