About San Antonio, TX's Climate & Weather History

With a population of around 1.5 million, San Antonio sits in Texas, United States. The city operates in the Central Time Zone.

In 2025, San Antonio recorded an average annual temperature of 72°F. The hottest temperatures reached 101°F in August; the coolest were 23°F in February. Total precipitation for the year was 37 inches, with the wettest month being July.