Average Monthly Sunshine in Irvine (CA)

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

Monthly hours of sunshine

Sunshine in Irvine varies greatly throughout the year. The sunniest month, July, reaches an impressive 369 hours, while January, the darkest month, offers only 198 hours. The total annual amount of sun is 3277 hours.

Daily hours of sunshine

For those who appreciate different seasons, Irvine serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 12.3 hours of sunshine daily, and embrace the darker days in January, offering only 6.6 hours of daily sunlight.

Irvine’s total hours of sunshine compared to other major cities

Irvine enjoys an average of 3277 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 Chicago, USA, the annual sunshine averages 2520 hours, contributing to its humid continental climate.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 2520 hours of sunshine annually.

Adelaide, Australia, enjoys 2770 hours of sunshine annually, with long, sunny summers.

Other climate information

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

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.