TODAY FEB26
TEMPERATURE56
HUMIDITY67
PRESSURE30.17
WIND COND.148
  • 6542Fri
  • 6444Sat
  • 6643Sun
  • 6343Mon
  • 6543Tue
daynightWeather update from DW7094 Mill Valley at

Key findings

  • The highest monthly average temperature in San Rafael for July is 65 degrees
  • The lowest monthly average temperature in San Rafael for December is 47 degrees
  • The most monthly precipitation in San Rafael occurs in January with 3.8 inches
  • The air quality index in San Rafael is 20% better than the national average
  • The pollution index in San Rafael is 62% worse than the national average

Compare San Rafael, CA Weather

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      San Rafael 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
      January36°F58°F47°F3.8"
      February39°F62°F50°F3.4"
      March41°F66°F52°F3.0"
      April42°F69°F55°F1.6"
      May46°F74°F59°F0.5"
      June50°F80°F64°F0.3"
      July53°F81°F65°F0.0"
      August53°F80°F64°F0.0"
      September49°F82°F64°F0.1"
      October45°F76°F59°F1.3"
      November40°F66°F52°F1.8"
      December36°F58°F47°F3.8"

      San Rafael 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 RafaelCaliforniaNational
      Air quality index405550
      Pollution index8,232,36018,106,7265,066,862

      San Rafael air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality290
      Days with moderate air quality74
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      San Rafael air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.060%
      Carbon Tetrachloride0.000%
      Lead0.010%
      Mercury0.010%

      Average monthly San Rafael temperature with heat index

      San Rafael monthly precipitation with daily maximum

      San Rafael monthly snow depth with daily maximum

      San Rafael monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Oakland, CA412,0404020%
      Marin City, CA3,1154020%
      Stinson Beach, CA6034020%
      Tiburon, CA9,1704020%
      Vallejo, CA119,6444020%
      San Rafael, CA58,9484020%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Idaho Falls, ID58,9332746%
      Huntington Park, CA58,9217244%
      Chapel Hill, NC59,0054412%
      Royal Oak, MI58,8235612%
      Port Orange, FL58,7803726%
      San Rafael, CA58,9484020%
      Source: The San Rafael, 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.