TODAY MAR04
TEMPERATURE51
HUMIDITY83
PRESSURE30.15
WIND COND.
  • 6647Thu
  • 7248Fri
  • 6447Sat
  • 6548Sun
  • 6346Mon
daynightWeather update from Santa Ana, John Wayne Airport-Orange County Airport at

Key findings

  • The highest monthly average temperature in South Coast for August is 72 degrees
  • The lowest monthly average temperature in South Coast for December is 57 degrees
  • The most monthly precipitation in South Coast occurs in December with 2.4 inches
  • The air quality index in South Coast is 79% worse than the national average
  • The pollution index in South Coast is 772% worse than the national average

Compare Santa Ana, CA Weather

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      South Coast 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
      January48°F69°F57°F2.3"
      February49°F69°F58°F1.9"
      March52°F70°F60°F0.9"
      April54°F72°F62°F0.6"
      May59°F73°F65°F0.3"
      June62°F76°F67°F0.0"
      July66°F80°F71°F0.1"
      August66°F82°F72°F0.0"
      September65°F82°F72°F0.2"
      October60°F79°F68°F0.5"
      November54°F75°F63°F0.7"
      December48°F68°F57°F2.4"

      South Coast 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.
      IndexSouth CoastSanta AnaCalifornia
      Air quality index898955
      Pollution index44,192,600858,65218,106,726

      South Coast air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality42
      Days with moderate air quality178
      Days w/ poor A.Q. for sensitive groups79
      Days with unhealthy air quality58

      South Coast air quality information

      PollutantTotal
      Arsenic0.002%
      Benzene0.010%
      Carbon Tetrachloride0.000%
      Lead0.020%
      Mercury0.001%

      Average monthly South Coast temperature with heat index

      South Coast monthly precipitation with daily maximum

      South Coast monthly snow depth with daily maximum

      South Coast monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Cerritos, CA49,7977244%
      Lakewood, CA81,0547244%
      Norwalk, CA106,3607244%
      Westminster, CA91,6357244%
      Fountain Valley, CA56,6707244%
      Santa Ana, CA333,6058978%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Anaheim, CA346,7768978%
      Corpus Christi, TX320,0504216%
      Riverside, CA318,6788978%
      Honolulu, HI349,5973040%
      Aurora, CO351,1315816%
      Santa Ana, CA333,6058978%
      Source: The South Coast, Santa Ana, 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.