San Diego, California 

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Climate in San Diego, California

San Diego, California gets 12 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 266 sunny days per year in San Diego. The US average is 205 sunny days.

San Diego gets some kind of precipitation, on average, 38 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 79 degrees
Winter Low: the January low is 46
Rain: averages 12 inches of rain a year
Snow: averages 0 inches of snow a year


The annual BestPlaces Comfort Index for San Diego is 9.2 (10=best), which means it is one of the most pleasant places in California.

9.2 / 10
June, October and September are the most pleasant months in San Diego, while December and January are the least comfortable months.

Climate Averages
  San Diego, CaliforniaUnited States
  11.7 in.38.1 in.
  0.0 in.27.8 in.
  38.4 days106.2 days
  266 days205 days
  62 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 Diego with an average high temperature of 80.2°, which ranks it as cooler than most places in California. In San Diego, there are 7 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Diego are July, September and August.

December has the coldest nighttime temperatures for San Diego with an average of 45.3°. This is one of the warmest places in California.

In San Diego, there are 13.4 days annually when the high temperature is over 90°, which is cooler than most places in California.

In San Diego, there are 0.7 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in California.

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

February is the wettest month in San Diego with 2.5 inches of rain, and the driest month is August with 0.0 inches. The wettest season is Spring with 55% of yearly precipitation and 2% occurs in Autumn, which is the driest season. The annual rainfall of 11.7 inches in San Diego means that it is drier than most places in California.

February is the rainiest month in San Diego with 6.8 days of rain, and August is the driest month with only 0.4 rainy days. There are 38.4 rainy days annually in San Diego, which is less rainy than most places in California. The rainiest season is Spring when it rains 48% of the time and the driest is Autumn with only a 4% chance of a rainy day.

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

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for San Diego    304 Reviews
    Before 30 - great ! After that - leave - 1/12/2020
    I am a 5th generation Californian . Raised 3 kids here . My combined income about $250k. Reason why I am telling you this is to explain just how prohibitively expensive... Read More

    Start Your Review of San Diego

    Give your hard earned income to the entitled - 1/11/2020
    Lived here on and off since joining the Navy in 1984. Was once the hidden jewel for weather and cost of living and overall quality of life. Weather stayed, Cost of... Read More

    DON'T COME HERE. IT'S BAD - 11/26/2019
    I lived in this city for 12 years. I watched it go from a nice place to a severely economically oppressive, corrupt, dangerous city. The City Government is extremely... Read More

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