TODAY APR25
TEMPERATURE59
HUMIDITY78
PRESSURE101990.8
WIND COND.183 4.8
  • 5850Thu
  • 6150Fri
  • 5951Sat
  • 6252Sun
  • 6252Mon
daynightWeather update from Norris Rancho Marino Reserve (UCNRS) at
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Weather Quick Facts

  • The highest monthly average temperature in Morro Bay for September is 64.9 degrees
  • The lowest monthly average temperature in Morro Bay for December is 52 degrees
  • The most monthly precipitation in Morro Bay occurs in January with 3.9 inches
  • The air quality index in Morro Bay is 9% worse than the national average
  • The pollution index in Morro Bay is 106% worse than the national average

Compare Morro Bay, CA Weather

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      Morro Bay 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°F68°F53°F3.9"
      February43°F67°F54°F2.6"
      March45°F69°F55°F2.2"
      April47°F71°F57°F1.4"
      May49°F73°F59°F0.3"
      June52°F77°F62°F0.1"
      July55°F79°F64°F0.1"
      August56°F80°F64°F0.0"
      September55°F82°F65°F0.0"
      October52°F80°F63°F0.9"
      November46°F73°F57°F1.1"
      December41°F66°F52°F3.1"

      Morro Bay 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.
      IndexMorro BayCaliforniaNational
      Air quality index465542
      Pollution index5,611,11010,473,1902,726,193

      Morro Bay air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality230
      Days with moderate air quality132
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality0

      Morro Bay air quality information

      PollutantTotal
      Arsenic0.020%
      Benzene0.060%
      Carbon Tetrachloride0.000%
      Lead0.060%
      Mercury0.010%

      Average monthly Morro Bay temperature with heat index

      Morro Bay monthly precipitation with daily maximum

      Morro Bay monthly snow depth with daily maximum

      Morro Bay monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Cayucos, CA2,228468.0%
      Garden Farms, CA418468.0%
      Templeton, CA7,965468.0%
      Edna, CA408468.0%
      Los Ranchos, CA1,675468.0%
      Morro Bay, CA10,592468.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Blackhawk, CA10,5904020.0%
      Greentree, NJ10,597512.0%
      South Yarmouth, MA10,5983628.0%
      North Branch, MN10,585468.0%
      Martin, TN10,5852648.0%
      Morro Bay, CA10,592468.0%
      Source: The Morro Bay, 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.