Average Monthly Sunshine in San Rafael (CA)

The graphs on this page shows the average number of hours per month and per day that San Rafael 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 San Rafael. Expect long, bright days with 324 hours in May and darker periods with just 160 hours in December. The total annual amount of sun is 3072 hours.

Daily hours of sunshine

This means the city can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 10.8 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 5.3 hours of sunlight per day.

San Rafael’s total hours of sunshine compared to other major cities

San Rafael enjoys an average of 3072 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Athens, Greece, enjoys 2769 hours of sunshine each year, making it one of the sunniest destinations in the Mediterranean region.

Boston, USA, enjoys 2629 hours of sunshine annually, with distinct seasons and many bright, sunny days.

Osaka, Japan, experiences 2010 hours of sunshine annually, with bright, sunny weather in spring and autumn.

Melbourne, Australia, has 2380 hours of sunshine annually, with its famous “four seasons in a day” weather pattern.

Other climate information

December, San Rafael’s wettest month, receives 4 mm of rainfall and has a maximum daytime temperature of 14°C. During the driest month August you can expect a temperature of 25°C.

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