TODAY DEC18
TEMPERATURE52
HUMIDITY83
PRESSURE101930
WIND COND.40 7.6
  • 7951Wed
  • 7651Thu
  • 7348Fri
  • 7048Sat
  • 6949Sun
daynightWeather update from San Diego, Montgomery Field at
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Weather Quick Facts

  • The highest monthly average temperature in Mission Bay for August is 71.1 degrees
  • The lowest monthly average temperature in Mission Bay for December is 57.5 degrees
  • The most monthly precipitation in Mission Bay occurs in December with 2.2 inches
  • The air quality index in Mission Bay is 52% worse than the national average
  • The pollution index in Mission Bay is 1581% worse than the national average

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      Mission Bay 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"

      Mission Bay 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.
      IndexMission BaySan DiegoCalifornia
      Air quality index646455
      Pollution index45,820,50045,820,50010,473,190

      Mission Bay air quality

      MeasurementTotal
      Days measured365
      Days with good air quality87
      Days with moderate air quality253
      Days w/ poor A.Q. for sensitive groups23
      Days with unhealthy air quality2

      Air quality details

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

      Average monthly Mission Bay temperature with heat index

      Mission Bay monthly precipitation with daily maximum

      Mission Bay monthly snow depth with daily maximum

      Mission Bay monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Bonita, CA12,4706428.0%
      La Presa, CA37,4106428.0%
      Spring Valley, CA31,8666428.0%
      El Cajon, CA103,2496428.0%
      Lakeside, CA21,0326428.0%
      San Diego, CA1,414,5456428.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Calgary, AB1,371,990n/a 
      Dallas, TX1,338,846512.0%
      San Antonio, TX1,529,133492.0%
      Philadelphia, PA1,581,531512.0%
      Phoenix, AZ1,658,4227448.0%
      San Diego, CA1,414,5456428.0%
      Source: The Mission Bay, 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.