San Antonio Weather & Climate: Best Time to Visit

In San Antonio temperatures are generally consistent throughout the year. Typically, average maximum daytime temperatures range from a pleasant 22°C (72°F) in January to a moderate 15°C (59°F) in the coolest month, July.

Nights vary from 14°C (57°F) in January to around 7°C (45°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

San Antonio tends toward drier weather patterns, receiving approximately 416 mm (16 in) of rain per year. The climate in San Antonio shows significant variation throughout the year. Expect high rainfall in June, the wettest month, with an average of 130 mm (5.1 in) of precipitation over 4 rainy days.

In contrast, the driest month January offers drier and sunnier days, with around 0.9 mm (0.04 in) of rainfall over 2 rainy days. For more details, please visit our San Antonio Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

For those who appreciate different seasons, San Antonio serves as an ideal destination. Expect longer, more sun-filled days in January with an average of 9.3 hours of sunshine daily, and embrace the darker days in June, offering only 2.7 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in San Antonio.

The city experiences its highest humidity in May, reaching 80%. In November, the humidity drops to its lowest level at 70%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year