Average Monthly Sunshine in San Bruno (CA)

The graphs on this page shows the average number of hours per month and per day that San Bruno 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 Bruno. 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

Seasonal changes in sunshine hours are quite obvious in San Bruno. While May receives considerable daily sunshine with up to 10.8 hours, December marks the darkest time of the year, where sunshine is scarce with only 5.3 hours of sunlight per day.

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

San Bruno enjoys an average of 3072 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.

Manchester, UK, experiences just around 1420 hours of sunshine annually.

Beijing, China, has 2505 hours of sunshine annually, with clear, sunny days in winter.

Perth, Australia, enjoys 3180 hours of sunshine annually, the highest among major Australian cities.

Other climate information

December, San Bruno’s wettest month, receives 3.7 mm of rainfall and has a maximum daytime temperature of 14°C. During the driest month July you can expect a temperature of 22°C.

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