Alameda (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Alameda.
Climate overview of Alameda
Alameda, California, United States of America, experiences moderate temperature changes through the seasons. September is the warmest month with daytime highs of 24°C (75°F), while January is the coolest at 15°C (59°F).
The city has a relatively dry climate, receiving around 485 mm (19 in) of rainfall per year. It does experience a distinct dry season from May to October. December is the wettest month and August the driest. The most sunshine falls in May, with an average of 10.8 hours of daily sunshine.
Alameda Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Alameda — and find the best time to visit.
Monthly Temperature in Alameda
The climate in Alameda experiences moderate temperature changes, with mild shifts between seasons. On average, daytime temperatures range from a comfortable 24°C (75°F) in September to a moderate 15°C (59°F) in January.
Nighttime temperatures range from 14°C (57°F) in September to 6°C (43°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Alameda
Alameda has a relatively dry climate with low precipitation, averaging 485 mm (19 in) of rainfall annually. The seasons in Alameda bring significant changes in precipitation. The wettest month, December, receives high rainfall, with an average of 109 mm (4.3 in) of precipitation. This rainfall is distributed across 14 rainy days.
In contrast, the driest month, August, experiences much less rainfall, totaling 0 mm (0 in) over 0 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Alameda 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 Alameda
In Alameda, 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
Water Temperature in Alameda
The mean water temperature over the year ranges from 12°C (54°F) in January to 14°C (57°F) in June.
Water temperature over the year
Humidity in Alameda by Month
The relative humidity is high throughout the year in Alameda.
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
Wind Speed in Alameda
The mean wind speed over the year ranges from 3 m/s (6 knots) in January, November and December to 7 m/s (14 knots) in June and July. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Alameda
Rainfall during this time ranges from 0 mm (0 in) in August to 29 mm (1.1 in) in October. This means you can expect a mix of sunny days and occasional showers. Seeking the perfect travel destination for this year? We've created a tool that suggests locations matching your desired weather. Let our weather planner guide your travel decisions.
Frequently asked questions about the climate in Alameda
What is the best time to visit Alameda?
May, June, July, August, September and October typically offer the most optimal weather in Alameda. In contrast, December tends to have less optimal conditions. Alameda has a distinct dry season from May to October.
What temperatures can I expect in Alameda?
Daytime highs range from 15°C (59°F) in January to 24°C (75°F) in September. Nighttime lows range from 6°C (43°F) to 14°C (57°F).
How much rain does Alameda get?
Annual rainfall is around 485 mm (19 in). December is the wettest month with 109 mm (4.3 in), while August is the driest with 0 mm (0 in).
How sunny is Alameda?
Alameda 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, Alameda enjoys abundant sunshine.
Alameda 3-Day Forecast
Alameda (CA) 3-Day Forecast
Alameda on the map
Alameda is highlighted — select any city to see its climate.
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