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San Clemente 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°F66°F56°F5.1"
February48°F64°F56°F4.2"
March51°F66°F58°F2.4"
April53°F68°F60°F1.6"
May54°F67°F58°F2.3"
June58°F69°F60°F0.1"
July63°F72°F67°F0.5"
August63°F75°F68°F1.0"
September62°F75°F68°F0.1"
October58°F71°F64°F2.0"
November52°F68°F59°F2.6"
December49°F64°F55°F7.2"

Did you know?

  • The highest monthly average temperature in San Clemente for August is 68 degrees.
  • The lowest monthly average temperature in San Clemente for December is 55 degrees.
  • The most monthly precipitation in San Clemente occurs in December with 7.2 inches.
  • The air quality index in San Clemente is 71% worse than the national average.
  • The pollution index in San Clemente is 772% worse than the national average.

Compare San Clemente, CA Weather To Other Cities

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      San Clemente 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 ClementeCaliforniaNational
      Air quality index855550
      Pollution index44,192,60018,106,7265,066,862

      San Clemente air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality24
      Days with moderate air quality211
      Days w/ poor A.Q. for sensitive groups102
      Days with unhealthy air quality25

      San Clemente air quality information

      PollutantTotal
      Arsenic0.030%
      Benzene0.280%
      Carbon Tetrachloride0.001%
      Lead0.220%
      Mercury0.140%

      Average monthly San Clemente temperature with heat index

      San Clemente monthly precipitation with daily maximum

      San Clemente monthly snow depth with daily maximum

      San Clemente monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Coto de Caza, CA14,8458570%
      Laguna Hills, CA31,1278570%
      Lakeland Village, CA11,6988570%
      Rancho Santa Margarita, CA49,0388570%
      Dana Point, CA34,0098570%
      San Clemente, CA65,0828570%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Delray Beach, FL65,0444118%
      Youngstown, OH65,1614510%
      Rockville, MD65,171492%
      Laguna Niguel, CA64,9848570%
      Marysville, WA64,9553138%
      San Clemente, CA65,0828570%
      Source: The San Clemente, 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.