Irvine (CA) Sunshine Hours by Month

Sunshine is key to understanding how a place experiences its seasons. This page shows the total number of hours of direct sunlight per month and the average hours per day in Irvine, California, United States of America. The figures are based on a 30-year period (1990–2020) to provide a reliable average.

Monthly hours of sunshine

Those who love seasonal contrasts will appreciate Irvine. Expect long, bright days with 369 hours in July and darker periods with just 198 hours in January. The total annual amount of sun is 3279 hours.

Daily hours of sunshine

This means the city can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 12.3 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 6.6 hours of sunlight per day.

Irvine enjoys an average of 3279 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.

In contrast, Tromsø , Norway, receives only about 1270 hours of sunshine per year, known for the polar night with no sunlight for weeks during winter.

The climate in San Francisco, USA, includes 3072 hours of sunshine annually, thanks to its mild coastal weather.

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

December, Irvine’s wettest month, receives 5.3 mm (0.2 in) of rainfall and has a maximum daytime temperature of 20°C (68°F). During the driest month August you can expect a temperature of 29°C (84°F).

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