TODAY DEC18
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.59 13.8
  • 7950Wed
  • 7549Thu
  • 7247Fri
  • 6947Sat
  • 6849Sun
daynightWeather update from West Rancho Bernardo at
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Weather Quick Facts

  • The highest monthly average temperature in Rancho Santa Fe for August is 70.2 degrees
  • The lowest monthly average temperature in Rancho Santa Fe for December is 55.8 degrees
  • The most monthly precipitation in Rancho Santa Fe occurs in December with 2.7 inches
  • The air quality index in Rancho Santa Fe is 52% worse than the national average
  • The pollution index in Rancho Santa Fe is 1581% worse than the national average

Compare Rancho Santa Fe, CA Weather

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      Rancho Santa Fe 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°F67°F56°F1.8"
      February49°F66°F56°F2.0"
      March51°F67°F58°F1.1"
      April54°F68°F60°F0.7"
      May58°F69°F63°F0.4"
      June61°F71°F65°F0.0"
      July65°F75°F69°F0.1"
      August66°F76°F70°F0.1"
      September64°F77°F70°F0.1"
      October59°F75°F67°F0.5"
      November53°F71°F61°F1.0"
      December48°F66°F56°F2.7"

      Rancho Santa Fe 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.
      IndexRancho Santa FeCaliforniaNational
      Air quality index645542
      Pollution index45,820,50010,473,1902,726,193

      Rancho Santa Fe 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 Rancho Santa Fe temperature with heat index

      Rancho Santa Fe monthly precipitation with daily maximum

      Rancho Santa Fe monthly snow depth with daily maximum

      Rancho Santa Fe monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Bostonia, CA17,5326428.0%
      Camp Pendleton South, CA16,6186428.0%
      Del Mar, CA4,3316428.0%
      Lake San Marcos, CA3,9576428.0%
      Vista, CA100,6596428.0%
      Rancho Santa Fe, CA2,6576428.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Liberty, NC2,6573138.0%
      New Boston, OH2,6571472.0%
      Lexington Hills, CA2,6563530.0%
      La Mesilla, NM2,6564118.0%
      Gastonville, PA2,6565612.0%
      Rancho Santa Fe, CA2,6576428.0%
      Source: The Rancho Santa Fe, 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.