Average Monthly Sunshine in San Diego (CA)

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

Monthly hours of sunshine

San Diego experiences sunny spells throughout the year. The sunniest month, July, sees up to 304 hours of sunshine, while November, the least sunny month, still provides a respectable 230 hours. The total annual sunshine amounts to 3052 hours.

Daily hours of sunshine

This means you can enjoy sunny spells year-round. July sees up to 10.1 hours of daily sunshine, perfect for a sunny trip. February, the least sunny month, still offers a generous 7.7 hours of sun despite this cloudier / rainier time of the year.

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

San Diego enjoys an average of 3052 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 contrast, London, UK, receives only about 1659 hours of sunshine per year, known for its frequently overcast and rainy skies.

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

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

Other climate information

December, San Diego’s wettest month, receives 4.3 mm of rainfall and has a maximum daytime temperature of 19°C. During the driest month June 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 Precipitation page.