Walnut Creek (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 Walnut Creek, 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
If you're visiting Walnut Creek, timing is key. In May, you can enjoy up to 324 hours of sunshine, while the shorter days of December provide just 160 hours. The total annual amount of sun is 3058 hours.
Daily hours of sunshine
Seasonal changes in sunshine hours are quite obvious in Walnut Creek. 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%.
Walnut Creek vs Major Cities: Sunshine Compared
Walnut Creek enjoys an average of 3058 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, Brussels, Belgium, receives only about 1590 hours of sunshine per year, known for its frequently overcast and rainy skies.
The climate in San Francisco, USA, includes 3072 hours of sunshine annually, thanks to its mild coastal weather.
In Tokyo, Japan, the average annual sunshine is 1930 hours, with sunny periods between rainy seasons.
Related Climate Data for Walnut Creek
December, Walnut Creek’s wettest month, receives 0.2 mm (0.01 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 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 Walnut Creek Precipitation page.
