TODAY JUN01
TEMPERATURE59
HUMIDITY82
PRESSURE30.04
WIND COND.310 11.4
  • 7255Tue
  • 7153Wed
  • 6652Thu
  • 6152Fri
  • 6151Sat
daynightWeather update from Half Moon Bay Airport at
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Pacifica 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 Pacifica for September is 63 degrees.
  • The lowest monthly average temperature in Pacifica for January is 51 degrees.
  • The most monthly precipitation in Pacifica occurs in December with 4.4 inches.
  • The air quality index in Pacifica is 7% worse than the national average.
  • The pollution index in Pacifica is 90% worse than the national average.

Compare Pacifica, CA Weather To Other Cities

      vs

      Pacifica 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.
      IndexPacificaCaliforniaNational
      Air quality index535550
      Pollution index9,645,61018,106,7265,066,862

      Pacifica air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality162
      Days with moderate air quality196
      Days w/ poor A.Q. for sensitive groups7
      Days with unhealthy air quality

      Pacifica air quality information

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

      Average monthly Pacifica temperature with heat index

      Pacifica monthly precipitation with daily maximum

      Pacifica monthly snow depth with daily maximum

      Pacifica monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Colma, CA1,5404314%
      Oakland, CA412,0404314%
      Brisbane, CA4,5684314%
      Daly City, CA105,5434314%
      Piedmont, CA11,2014314%
      Pacifica, CA38,844536%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Mableton, GA38,839524%
      Tupelo, MS38,8563530%
      Marumsco, VA38,815492%
      Huber Heights, OH38,795484%
      Hallandale Beach, FL38,9514118%
      Pacifica, CA38,844536%
      Source: The Pacifica, 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.