TODAY OCT20
TEMPERATURE53
HUMIDITY93
PRESSURE30.02
WIND COND.
  • 7752Sat
  • 7252Sun
  • 7052Mon
  • 7153Tue
  • 7354Wed
daynightWeather update from San Francisco, San Francisco International Airport 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
January44°F58°F51°F3.2"
February46°F62°F53°F3.4"
March47°F64°F54°F2.7"
April49°F67°F56°F1.7"
May51°F69°F58°F0.3"
June54°F72°F61°F0.2"
July56°F73°F62°F0.0"
August56°F73°F62°F0.0"
September56°F76°F63°F0.1"
October54°F73°F62°F1.0"
November49°F65°F56°F1.7"
December44°F58°F51°F4.4"

Did you know?

  • The highest monthly average temperature in San Carlos for September is 63 degrees.
  • The lowest monthly average temperature in San Carlos for January is 51 degrees.
  • The most monthly precipitation in San Carlos occurs in December with 4.4 inches.
  • The air quality index in San Carlos is 3% better than the national average.
  • The pollution index in San Carlos is 90% worse than the national average.

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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 CarlosCaliforniaNational
Air quality index485550
Pollution index9,645,61018,106,7265,066,862

San Carlos air quality information

MeasurementTotal
Days measured365
Days with good air quality204
Days with moderate air quality153
Days w/ poor A.Q. for sensitive groups7
Days with unhealthy air quality1

San Carlos air quality information

PollutantTotal
Arsenic0.140%
Benzene0.070%
Carbon Tetrachloride0.000%
Lead0.100%
Mercury0.020%

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.
South San Francisco, CA66,5874314%
Daly City, CA105,5434314%
San Leandro, CA89,0394314%
Castro Valley, CA62,8254314%
San Lorenzo, CA24,7904314%
San Carlos, CA29,596484%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Sterling, VA29,597492%
Niles, IL29,6286020%
Gloucester, MA29,546476%
Winter Park, FL29,5433628%
Granite City, IL29,6626020%
San Carlos, CA29,596484%
Source: The San Carlos, 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.