Dublin (CA) Sunshine Hours by Month

When exploring climate, sunlight hours tell an important story. This page shows the total number of hours of direct sunlight per month and the average hours per day in Dublin, California, United States of America. Long-term data from 1990 to 2020 was used to calculate these averages.

Monthly hours of sunshine

Sunshine in Dublin varies greatly throughout the year. The sunniest month, May, reaches an impressive 324 hours, while December, the darkest month, offers only 160 hours. The total annual amount of sun is 3058 hours.

Daily hours of sunshine

Seasonal changes in sunshine hours are quite obvious in Dublin. 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.

Average percent of sunshine

On average the sun shines 78% of the time during the day in April, the highest percentage of any month. December has the lowest percentage at 54%.

Dublin enjoys an average of 3058 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.

In contrast, Juneau, Alaska, receives only about 1523 hours of sunshine per year and is known for its very short days in winter and frequently overcast conditions.

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.

December, Dublin’s wettest month, receives 0.1 mm (0 in) of rainfall and has a maximum daytime temperature of 14°C (57°F). During the driest month August you can expect a temperature of 30°C (86°F).

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