Downey (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 Downey, California, United States of America. Long-term data from 1990 to 2020 was used to calculate these averages.

Monthly hours of sunshine

Sunshine in Downey varies greatly throughout the year. The sunniest month, July, reaches an impressive 364 hours, while November, the darkest month, offers only 217 hours. The total annual amount of sun is 3257 hours.

Daily hours of sunshine

Seasonal changes in sunshine hours are quite obvious in Downey. While July receives considerable daily sunshine with up to 12.1 hours, November marks the darkest time of the year, where sunshine is scarce with only 7.2 hours of sunlight per day.

Average percent of sunshine

On average the sun shines 84% of the time during the day in August, the highest percentage of any month. May has the lowest percentage at 64%.

Downey enjoys an average of 3257 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, Reykjavík, Iceland, receives only about 1330 hours of sunshine per year, known for its frequently overcast and rainy skies.

Boston, USA, enjoys 2629 hours of sunshine annually, with distinct seasons and many bright, sunny days.

Melbourne, Australia, has 2380 hours of sunshine annually, with its famous “four seasons in a day” weather pattern.

December, Downey’s wettest month, receives 0.2 mm (0.01 in) of rainfall and has a maximum daytime temperature of 20°C (68°F). During the driest month June you can expect a temperature of 26°C (79°F).

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