San Jose, CA 

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Climate in San Jose, CA

San Jose, California has a Mediterranean climate with warm, dry summers and mild, wet winters. The average temperature during the summer months is usually between 70-85°F while the winter temperatures typically range between 40-60°F. The area typically receives 15–20 inches of rain annually, most of which falls from November through March. In the summer months, San Jose sees low levels of humidity and plenty of sunshine. Days are normally clear and sunny providing plenty of opportunity to enjoy outdoor activities in the pleasant weather.

San Jose, California gets 17 inches of rain, on average, per year. The US average is 38 inches of rain per year.

San Jose averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 257 sunny days per year in San Jose. The US average is 205 sunny days.

San Jose gets some kind of precipitation, on average, 62 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 82 degrees
Winter Low: the January low is 42
Rain: averages 17 inches of rain a year
Snow: averages 0 inches of snow a year


The annual BestPlaces Comfort Index for San Jose is 8.8 (10=best), which means it is more comfortable than most places in California.

9.8 / 7.5

Summer   /   Winter
August, July and June are the most pleasant months in San Jose, while January and December are the least comfortable months.

Climate Averages
  San Jose, CaliforniaUnited States
  17.2 in.38.1 in.
  0.0 in.27.8 in.
  61.8 days106.2 days
  257 days205 days
  82 ft.2443 ft.


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.

August is the hottest month for San Jose with an average high temperature of 81.9°, which ranks it as cooler than most places in California. In San Jose, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Jose are June, September and May.

In San Jose, there are 16.9 days annually when the high temperature is over 90°, which is cooler than most places in California.

December has the coldest nighttime temperatures for San Jose with an average of 41.5°. This is warmer than most places in California.

In San Jose, there are 4.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In San Jose, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

Humidity in San Jose is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are August, July and June.

February is the wettest month in San Jose with 3.5 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 57% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 17.2 inches in San Jose means that it is about average compared to other places in California.

December is the rainiest month in San Jose with 10.3 days of rain, and July is the driest month with only 0.2 rainy days. There are 61.8 rainy days annually in San Jose, which is rainier than most places in California. The rainiest season is Spring when it rains 50% of the time and the driest is Autumn with only a 2% chance of a rainy day.

There is rarely any recorded snowfall in San Jose, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in San Jose.

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for San Jose    90 Reviews
    West San Jose is a Desirable Area in San Jose - 4/16/2023
    I've lived in west San Jose/Cambrian, between Los Gatos and Almaden SJ since 1997. This side of town somehow avoided the erosion of the American dream. Houses are... Read More

    Start Your Review of San Jose

    Declining quality of life… - 10/14/2022
    I lived in San Jose for 40 years. That’s during the most exciting time when the Silicon Valley was booming with real technology and San Jose was ranked as the safest big... Read More

    HORRIBLE place to live - 10/11/2021
    I've lived in San Jose, CA for 25 years. This city is being over run with crime and gangs. The cost of living is very high. Granted, you are so close to mountains,... Read More

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