TODAY JUL20
TEMPERATURE63
HUMIDITY85
PRESSURE29.91
WIND COND.355
  • 8164Sun
  • 8465Mon
  • 8763Tue
  • 8863Wed
  • 8663Thu
daynightWeather update from DW5256 La Mesa at
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San Carlos 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"

Did you know?

  • The highest monthly average temperature in San Carlos for August is 71 degrees.
  • The lowest monthly average temperature in San Carlos for December is 58 degrees.
  • The most monthly precipitation in San Carlos occurs in December with 2.2 inches.
  • The air quality index in San Carlos is 23% worse than the national average.
  • The pollution index in San Carlos is 804% worse than the national average.

Compare San Diego, CA Weather To Other Cities

San Carlos 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 CarlosSan DiegoCalifornia
Air quality index616155
Pollution index45,820,50045,820,50018,106,726

San Carlos 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 Carlos air quality information

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

Average monthly San Carlos temperature with heat index

San Carlos monthly precipitation with daily maximum

San Carlos monthly snow depth with daily maximum

San Carlos monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Bonita, CA12,8856122%
Coronado, CA24,8526122%
Eucalyptus Hills, CA5,5836122%
Jamul, CA5,6406122%
Lemon Grove, CA26,4216122%
San Diego, CA1,374,8126122%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
San Antonio, TX1,439,3584510%
Dallas, TX1,278,433548%
Phoenix, AZ1,555,3247448%
Philadelphia, PA1,559,9385714%
San Jose, CA1,009,363484%
San Diego, CA1,374,8126122%
Source: The San Carlos, 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.
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