Average Monthly Sunshine in Santa Rosa (CA)

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

Monthly hours of sunshine

If you're visiting Santa Rosa, timing is key. In May, you can enjoy up to 310 hours of sunshine, while the less sunny days of December provide just 160 hours. The total annual amount of sun is 0 hours.

Daily hours of sunshine

For those who appreciate different seasons, the city serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 10.3 hours of sunshine daily, and embrace the darker days in December, offering only 5.3 hours of daily sunlight.

Santa Rosa’s total hours of sunshine compared to other major cities

Santa Rosa enjoys an average of 0 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.

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

In Seoul, South Korea, there are approximately 2133 hours of sunshine per year, mostly during spring and autumn.

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

Other climate information

December, Santa Rosa’s wettest month, receives 5.8 mm of rainfall and has a maximum daytime temperature of 14°C. During the driest month August you can expect a temperature of 27°C.

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