Berkeley (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Berkeley.
Climate overview of Berkeley
Temperatures in Berkeley, California, United States of America, shift moderately through the seasons. The warmest month is September at 24°C (75°F), and the coolest is December at 13°C (55°F).
The city receives around 588 mm (23 in) of rainfall per year. It experiences a distinct dry season from May to October, with warm summers and mild winters. December is the wettest month and July the driest. May is the sunniest month, averaging 10.8 hours of sunshine per day.
Berkeley Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Berkeley - and find the best time to visit.
Monthly Temperature in Berkeley
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
Rainfall in Berkeley
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
Sunshine Hours in Berkeley
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
Humidity in Berkeley by Month
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
Best Time to Visit Berkeley
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August, September and October
- Warmest weather: June, July, August and September
- Most sunshine: April, May, June and July
- Fewest rainy days: June, July, August and September
- Wettest months: January, February, March, April, November and December, when rainfall is highest.
- Seasonal pattern: A distinct dry season from May to October, with warm summers and mild winters
Frequently asked questions about the climate in Berkeley
What is the best time to visit Berkeley?
May, June, July, August, September and October typically offer the most optimal weather in Berkeley. In contrast, December tends to have less optimal conditions. Berkeley has a distinct dry season from May to October, with warm summers and mild winters.
What temperatures can I expect in Berkeley?
Daytime highs range from 13°C (55°F) in December to 24°C (75°F) in September. Nighttime lows range from 6°C (43°F) to 13°C (55°F).
How much rain does Berkeley get?
Annual rainfall is around 588 mm (23 in). December is the wettest month with 125 mm (4.9 in), while July is the driest with 0.5 mm (0.02 in).
How sunny is Berkeley?
Berkeley receives around 3,058 hours of sunshine per year. May is the sunniest month with 324 hours, while December is the cloudiest with just 160 hours. Overall, Berkeley enjoys abundant sunshine.
Berkeley 3-Day Forecast
Berkeley on the map
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Popular this month
Where to go in August - average daytime high across popular destinations.
Kissimmee
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24°C (75°F) San Francisco22°C (72°F) 
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