San Francisco Sunshine Hours by Month

Sunshine plays a big role in understanding the climate of a city. This page shows the total number of hours of direct sunlight per month and the average hours per day in San Francisco, Cundinamarca, Colombia. These values are calculated using 30 years of data (1990–2020) to ensure accuracy.

Monthly hours of sunshine

Seasonal sunshine in San Francisco varies. It peaks at 156 hours in January and drops to 83 hours in May. The total annual amount of sun is 1337 hours.

Daily hours of sunshine

Seasonal changes in sunshine hours are quite obvious in San Francisco. While January receives considerable daily sunshine with up to 5.2 hours, May marks the darkest time of the year, where sunshine is scarce with only 2.8 hours of sunlight per day.

Average percent of sunshine

On average the sun shines 42% of the time during the day in January, the highest percentage of any month. May has the lowest percentage at 22%.

San Francisco enjoys an average of 1337 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Lisbon, Portugal, there are approximately 2801 hours of sunshine annually, highlighting its warm and sunny Mediterranean climate.

In contrast, Reykjavík, Iceland, receives only about 1330 hours of sunshine per year, known for its frequently overcast and rainy skies.

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

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

April, San Francisco’s wettest month, receives 173 mm (6.8 in) of rainfall and has a maximum daytime temperature of 22°C (72°F). During the driest month August you can expect a temperature of 23°C (73°F).

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