TODAY JUN21
TEMPERATURE57
HUMIDITY88
PRESSURE29.98
WIND COND.134
  • 7454Fri
  • 7855Sat
  • 6754Sun
  • 6453Mon
  • 6552Tue
daynightWeather update from DW7094 Mill Valley at

Muir Beach Average Weather

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
January37°F65°F50°Fn/a
February39°F68°F51°Fn/a
March40°F70°F51°Fn/a
April42°F78°F52°Fn/a
May46°F88°F55°Fn/a
June48°F87°F56°Fn/a
July50°F68°F57°Fn/a
August51°F77°F58°Fn/a
September49°F79°F58°Fn/a
October48°F77°F58°Fn/a
November43°F74°F55°Fn/a
December37°F66°F50°Fn/a

Did you know?

  • The highest monthly average temperature in Muir Beach for September is 58 degrees.
  • The lowest monthly average temperature in Muir Beach for December is 50 degrees.
  • The most monthly precipitation in Muir Beach occurs in January with 0 inches.
  • The air quality index in Muir Beach is 13% better than the national average.
  • The pollution index in Muir Beach is 62% worse than the national average.

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Compare Muir Beach, CA Weather To Other Cities

Muir Beach 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.
IndexMuir BeachCaliforniaNational
Air quality index435550
Pollution index8,232,36018,106,7265,066,862

Muir Beach air quality information

MeasurementTotal
Days measured365
Days with good air quality241
Days with moderate air quality115
Days w/ poor A.Q. for sensitive groups9
Days with unhealthy air quality

Muir Beach air quality information

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

Average monthly Muir Beach temperature with heat index

Muir Beach monthly precipitation with daily maximum

Muir Beach monthly snow depth with daily maximum

Muir Beach monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Alto, CA6494314%
East Richmond Heights, CA3,3644314%
Larkspur, CA12,2684314%
Montalvin Manor, CA3,1744314%
Richmond, CA108,3034314%
Muir Beach, CA2484314%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Lemitar, NM248512%
Hat Creek, CA2483824%
Mackville, KY2484216%
Railroad, PA2484510%
Centerview, MO2485816%
Muir Beach, CA2484314%
Source: The Muir Beach, 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.