Alameda County, CA Weather


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The most pleasant months of the year for Alameda County are September, August and July. In Alameda County, there are 6 comfortable months with high temperatures in the range of 70-85°. September is the hottest month for Alameda County with an average high temperature of 76.3°, which ranks it as cooler than most places in California. Any measurable snowfall is a rare occurance in Alameda County. There are few days during the summer when the humidity becomes unpleasant.

Today's Weather - Alameda, CA

4 AM PST

Mostly Clear

46°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
OvernightMostly Clear45° / 60°WSW 8 mph
Saturday NightMostly Clear47° / 64°WSW 9 to 18 mph
Sunday NightClear45° / 64°WSW 13 to 22 mph
Monday NightClear45° / 68°W 8 to 17 mph
Tuesday NightClear47° / 69°W 8 to 15 mph
Wednesday NightMostly Clear49° / 68°NW 8 to 17 mph
Thursday NightMostly Clear49° / 70°WSW 6 to 15 mph

Weather Highlights

Summer High: the July high is around 75 degrees
Winter Low: the January low is 43
Rain: averages 22 inches of rain a year
Snow: averages 0 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Alameda County area is 9.7 (10=best), which means it is more comfortable than most places in California.

9.7 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January58° 43°
February61° 45°
March64° 47°
April67° 49°
May70° 52°
June73° 55°
July75° 56°
August76° 57°
September76° 56°
October72° 53°
November64° 47°
December58° 43°
Hot, Freezing, Rainy, Snowy Days: Alameda
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January01110
February00110
March00100
April0060
May1030
June2010
July2000
August2000
September3010
October1040
November0080
December01110

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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