TODAY MAY25
TEMPERATURE64
HUMIDITY81
PRESSURE29.92
WIND COND. 3.4
  • 7661
  • 7962Tue
  • 8062Wed
  • 7962Thu
  • 7562Fri
daynightWeather update from San Diego, San Diego International-Lindbergh Field at
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San Diego Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January49°F68°F58°F1.7"
February51°F68°F59°F1.8"
March54°F69°F60°F1.0"
April56°F70°F62°F0.6"
May60°F70°F64°F0.4"
June62°F72°F66°F0.0"
July66°F76°F70°F0.2"
August67°F78°F71°F0.0"
September66°F78°F71°F0.2"
October61°F77°F68°F0.5"
November55°F73°F63°F0.9"
December49°F67°F58°F2.2"

Did you know?

  • The highest monthly average temperature in San Diego for August is 71 degrees.
  • The lowest monthly average temperature in San Diego for December is 58 degrees.
  • The most monthly precipitation in San Diego occurs in December with 2.2 inches.
  • The air quality index in San Diego is 23% worse than the national average.
  • The pollution index in San Diego is 804% worse than the national average.

Compare San Diego, CA Weather To Other Cities

      vs

      San Diego air quality index & pollution index

      In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
      IndexSan DiegoCaliforniaNational
      Air quality index615550
      Pollution index45,820,50018,106,7265,066,862

      San Diego air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality69
      Days with moderate air quality277
      Days w/ poor A.Q. for sensitive groups17
      Days with unhealthy air quality1

      San Diego air quality information

      PollutantTotal
      Arsenic1.130%
      Benzene0.410%
      Carbon Tetrachloride0.030%
      Lead0.600%
      Mercury0.080%

      Average monthly San Diego temperature with heat index

      San Diego monthly precipitation with daily maximum

      San Diego monthly snow depth with daily maximum

      San Diego monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Bostonia, CA16,2956122%
      El Cajon, CA102,8946122%
      Lakeside, CA21,4886122%
      National City, CA60,3496122%
      Spring Valley, CA30,1286122%
      San Diego, CA1,374,8126122%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      San Antonio, TX1,439,3584510%
      Dallas, TX1,278,433548%
      Phoenix, AZ1,555,3247448%
      Philadelphia, PA1,559,9385714%
      San Jose, CA1,009,363484%
      San Diego, CA1,374,8126122%
      Source: The San Diego, CA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.