Nagano Sunshine Hours by Month

To truly understand a climate, we must look at its sunshine. This page shows the total number of hours of direct sunlight per month and the average hours per day in Nagano, Nagano Prefecture, Japan. Long-term data from 1990 to 2020 was used to calculate these averages.

Monthly hours of sunshine

While the amount of sunshine in Nagano changes moderately throughout the year, the annual total remains impressive at around 1951 hours. Expect slightly brighter days in May and a subtle dip in January.

Daily hours of sunshine

This means you can enjoy sunny spells year-round. May sees up to 7.0 hours of daily sunshine, perfect for a sunny trip. January, the least sunny month, still offers a generous 4.3 hours of sun despite this cloudier / rainier time of the year.

Nagano enjoys an average of 1951 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

The city of Rome, Italy, experiences 2470 hours of sunshine annually, adding to its charm as a year-round tourist destination.

In contrast, Brussels, Belgium, receives only about 1590 hours of sunshine per year, known for its frequently overcast and rainy skies.

In Chicago, USA, the annual sunshine averages 2520 hours, contributing to its humid continental climate.

In Brisbane, Australia, the annual sunshine averages 2999 hours, making it one of Australia’s sunniest cities.

July, Nagano’s wettest month, receives 194 mm (7.6 in) of rainfall and has a maximum daytime temperature of 27°C (81°F). During the driest month November you can expect a temperature of 12°C (54°F).

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Nagano Precipitation page.