Whether you're visiting Toyama Prefecture in Japan during the peak of August (30°C (86°F)) or the cooler months around January (5°C (41°F)), knowing what to pack starts with understanding the local climate. Our overview is based on data from Toyama City, 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.
The weather in Toyama Prefecture during May, June, September and October is comfortably warm, with average temperatures ranging from 20°C (68°F) to 26°C (79°F).
The coldest months are usually in January, February and December.
When it comes to rainfall, Toyama Prefecture sees significant variations throughout the year. July tends to be the wettest, receiving 283 mm (11 in) of rain, while May is much drier with just 162 mm (6.4 in). Travelers should note that the rainy season falls during January, June, July, August, September and December, bringing substantial precipitation ranging from 194 mm (7.6 in) to 283 mm (11 in) monthly.
Visitors hoping to maximize their time in the sun should consider planning their trip for April, when daylight hours are at their peak.
