Nagano Prefecture in Japan sees its peak temperatures in August (27°C (81°F)) and its coolest in January (0°C (32°F)). For a full breakdown of what to expect throughout the year, we've put together a climate overview based on data from Hakuba, the region's most visited city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
Nagano Prefecture offers pleasant conditions in June, July, August and September, with temperatures typically ranging from 22°C (72°F) to 27°C (81°F).
The cooler season is during the months of January, February, March and December.
Precipitation in Nagano Prefecture varies considerably throughout the year. The wettest conditions occur in July with 399 mm (16 in) of rain, while April stays relatively dry with 187 mm (7.4 in).
Visitors hoping to maximize their time in the sun should consider planning their trip for April, when daylight hours are at their peak.
