TODAY JUL28
TEMPERATURE75°F
HUMIDITY69%
PRESSURE29.97 inHg
WIND COND.220° 11.5 mph
  • 7667Sat
  • 7769Sun
  • 7869Mon
  • 8171Tue
  • 7971Wed
daynightWeather update from San Diego, San Diego International-Lindbergh Field, on 28 Jul 12:35 pm PDT

San Diego Average Weather

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
January35°F87°F56°F1.8"
February41°F83°F57°F2.4"
March45°F86°F59°F0.9"
April49°F98°F61°F0.4"
May53°F87°F63°F0.2"
June57°F96°F66°F0.0"
July61°F99°F70°F0.0"
August62°F91°F71°F0.0"
September59°F91°F69°F0.0"
October50°F94°F66°F0.6"
November42°F90°F62°F0.7"
December41°F80°F56°F1.5"

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 56 degrees.
  • The most monthly precipitation in San Diego occurs in February with 2.4 inches.
  • The air quality index in San Diego is 22% worse than the national average.
  • The pollution index in San Diego is 798% worse than the national average.

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Compare San Diego, CA Weather To Other Cities

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 index45,820,50018,233,7825,100,859

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.
La Mesa, CA58,2396122%
Rancho San Diego, CA21,5146122%
Winter Gardens, CA20,3466122%
Casa de Oro-Mount Helix, CA21,0766122%
Eucalyptus Hills, CA5,3526122%
San Diego, CA1,341,5106122%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
San Antonio, TX1,385,4384510%
Dallas, TX1,240,985548%
Phoenix, AZ1,490,7587448%
Philadelphia, PA1,546,9205714%
San Jose, CA986,320484%
San Diego, CA1,341,5106122%
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.