Berkeley (CA) Weather & Climate: Best Time to Visit

In Berkeley, seasonal changes bring about a moderate variation in temperatures. On average, daytime temperatures range from a comfortable 24°C (75°F) in September to a moderate 13°C (55°F) in December.

Nighttime temperatures range from 13°C (55°F) in September to 6°C (43°F) in December.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Berkeley receives mid-range precipitation levels, with 588 mm (23 in) annually. The seasons in Berkeley bring significant changes in precipitation. The wettest month, December, receives high rainfall, with an average of 125 mm (4.9 in) of precipitation. This rainfall is distributed across 13 rainy days.

In contrast, the driest month, July, experiences much less rainfall, totaling 0.5 mm (0.02 in) over a single rainy day. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Berkeley Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

In Berkeley, summer days are longer and more sunny, with daily sunshine hours peaking at 10.8 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 5.3 hours per average day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Berkeley.

The city experiences its highest humidity in January, reaching 80%. In June, the humidity drops to its lowest level at 71%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year