TODAY SEP22
TEMPERATURE76°F
HUMIDITY91%
PRESSURE29.92 inHg
WIND COND.70° 6.9 mph
  • 9175Fri20%
  • 9374Sat20%
  • 9174Sun20%
  • 9274Mon20% | 30%
  • 8974Tue40% | 40%
daynightWeather update from San Antonio, Stinson Municipal Airport, on 21 Sep 23:53 pm CDT

San Antonio 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
January22°F88°F55°F0.8"
February23°F93°F59°F0.6"
March30°F96°F66°F3.1"
April36°F102°F72°F1.3"
May50°F102°F79°F3.1"
June61°F105°F85°F2.2"
July67°F106°F85°F3.1"
August70°F104°F86°F1.6"
September55°F108°F81°F2.1"
October34°F97°F72°F2.5"
November28°F93°F64°F1.7"
December21°F84°F55°F1.0"

Did you know?

  • The highest monthly average temperature in San Antonio for August is 86 degrees.
  • The lowest monthly average temperature in San Antonio for December is 55 degrees.
  • The most monthly precipitation in San Antonio occurs in March with 3.1 inches.
  • The air quality index in San Antonio is 9% better than the national average.
  • The pollution index in San Antonio is 374% worse than the national average.

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Compare San Antonio, TX Weather To Other Cities

San Antonio 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 AntonioTexasNational
Air quality index455250
Pollution index24,182,7004,725,0585,100,859

San Antonio air quality information

MeasurementTotal
Days measured365
Days with good air quality249
Days with moderate air quality106
Days w/ poor A.Q. for sensitive groups10
Days with unhealthy air quality

San Antonio air quality information

PollutantTotal
Arsenic0.310%
Benzene0.310%
Carbon Tetrachloride0.080%
Lead0.140%
Mercury0.230%

Average monthly San Antonio temperature with heat index

San Antonio monthly precipitation with daily maximum

San Antonio monthly snow depth with daily maximum

San Antonio monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
China Grove, TX1,1524510%
Alamo Heights, TX7,3974510%
Olmos Park, TX2,0234510%
Hollywood Park, TX3,1794510%
Helotes, TX7,8804510%
San Antonio, TX1,385,4384510%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
San Diego, CA1,341,5106122%
Phoenix, AZ1,490,7587448%
Dallas, TX1,240,985548%
Philadelphia, PA1,546,9205714%
San Jose, CA986,320484%
San Antonio, TX1,385,4384510%
Source: The San Antonio, TX 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.