TODAY MAY09
TEMPERATURE75
HUMIDITY37
PRESSURE29.96
WIND COND.290 29.5
  • 6654Sun
  • 7054Mon
  • 6852Tue
  • 6652Wed
  • 6352Thu
daynightWeather update from Oakland, Metro Oakland International Airport at

Key findings

  • The highest monthly average temperature in Alameda for September is 63.6 degrees
  • The lowest monthly average temperature in Alameda for January is 49.6 degrees
  • The most monthly precipitation in Alameda occurs in December with 4.1 inches
  • The air quality index in Alameda is 20% better than the national average
  • The pollution index in Alameda is 279% worse than the national average

Compare Alameda, CA Weather

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      Alameda 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
      January41°F59°F50°F2.8"
      February45°F62°F53°F3.1"
      March47°F65°F55°F2.9"
      April49°F67°F57°F1.8"
      May52°F69°F59°F0.4"
      June54°F72°F62°F0.3"
      July56°F73°F63°F0.0"
      August57°F73°F63°F0.0"
      September55°F76°F64°F0.1"
      October52°F73°F61°F1.0"
      November47°F65°F56°F1.9"
      December42°F59°F50°F4.1"

      Alameda 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.
      IndexAlamedaCaliforniaNational
      Air quality index405550
      Pollution index19,202,40018,106,7265,066,862

      Alameda 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

      Alameda air quality information

      PollutantTotal
      Arsenic0.180%
      Benzene0.140%
      Carbon Tetrachloride0.010%
      Lead0.280%
      Mercury0.060%

      Average monthly Alameda temperature with heat index

      Alameda monthly precipitation with daily maximum

      Alameda monthly snow depth with daily maximum

      Alameda monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Alamo, CA16,0784020%
      North Gate, CA4654020%
      San Miguel, CA3,2144020%
      Ashland, CA24,2884020%
      San Leandro, CA89,0394020%
      Alameda, CA77,4094020%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Chino Hills, CA77,2668978%
      Bellflower, CA77,6877244%
      Pleasanton, CA77,0464314%
      Gary, IN77,8585510%
      Mount Pleasant, SC77,9073824%
      Alameda, CA77,4094020%
      Source: The Alameda, 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.