Climate and Weather of Nagano, Japan

In Japan you have several regions, one of which is called Nagano. The most popular city in this region is Hakuba, whose climate data we'll examine to provide you with an overview of what weather to expect in Nagano. 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 Nagano during June, July, August and September is comfortably warm, with average temperatures ranging from 22°C to 27°C.

The warmest weather in Nagano arrives in August, when temperatures climb to 27°C. In contrast, January sees the mercury drop to daytime highs of 0°C.

The cooler season is during the months of January, February, March and December.

Precipitation in Nagano varies considerably throughout the year. The wettest conditions occur in July with 399 mm of rain, while April stays relatively dry with 187 mm.

Visitors hoping to maximize their time in the sun should consider planning their trip for April, when daylight hours are at their peak.

Select a Month of Interest

Check the conditions for any month of the year.

Interested in the detailed Weather and Climate of Nagano, Japan?

Please select a city below the map you wish to travel to, or the one closest to your destination. Each selected city will show you the following graphs:
1. Average minimum and maximum temperature over the year
2. Average monthly precipitation over the year (rainfall, snow)
3. Average monthly hours of sunshine over the year
On certain pages we also offer other historical climate data like humidity wind speed and water temperature.