Average Monthly Sunshine in Boise (ID)

The graphs on this page shows the average number of hours per month and per day that Boise receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

Monthly hours of sunshine

Those who love seasonal contrasts will appreciate Boise. Expect long, bright days with 399 hours in July and darker periods with just 103 hours in December. The total annual amount of sun is 2998 hours.

Daily hours of sunshine

This means the city can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 13.3 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 3.4 hours of sunlight per day.

Boise’s total hours of sunshine compared to other major cities

Boise enjoys an average of 2998 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Barcelona, Spain, there are 2530 hours of sunshine annually and is a city that can be visited year-round.

The climate in San Francisco, USA, includes 3072 hours of sunshine annually, thanks to its mild coastal weather.

Vancouver, Canada, receives approximately 1940 hours of sunshine annually.

In Tokyo, Japan, the average annual sunshine is 1930 hours, with sunny periods between rainy seasons.

Other climate information

December, Boise’s wettest month, receives 8.4 mm of snow/rainfall and has a maximum daytime temperature of 4°C. During the driest month August you can expect a temperature of 32°C.

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