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Average climate of San Antonio

The climate of San Antonio has an average yearly temperature of 32°C. Throughout the year, the average monthly temperature can drop to 29°C and rise to 34°C.

Annually, about 1498 mm of rain falls. This gives a good overview of how much rain to expect in San Antonio.

  • Average yearly temperature: 32°C
  • Highest temperature: 34°C in August
  • Lowest temperature: 29°C in January and December
  • Precipitation: 1498 mm per year, averaging 125 mm per month
  • Driest months: 27 mm in January, 29 mm in February and December
  • Wettest months: 262 mm in May, 239 mm in June and 206 mm in September

Temperature per month in San Antonio

This graph shows the average high temperatures in degrees Celsius for each month in San Antonio

Temperature per month in San Antonio

Precipitation per month in San Antonio

This graph shows the average monthly precipitation in millimeters in San Antonio.

Precipitation per month in San Antonio

UV index per month in San Antonio

This graph shows the average UV index per month in San Antonio.

UV index per month in San Antonio

Yearly temperature in San Antonio

This graph shows the average yearly temperature in San Antonio, measured in degrees Celsius.

Yearly temperature in San Antonio

Yearly total precipitation in San Antonio

This graph shows the average yearly precipitation in millimeters in San Antonio.

Precipitation per year in San Antonio

Average weather in San Antonio per month

Click on a month below to see in detail how the weather typically is in San Antonio and what to expect. Based on the historical weather data of San Antonio, you can view the average temperature, precipitation, wind, and UV index for each day of the month.