San Antonio weather in August
August in San Antonio averages 96°F by day and 75°F at night, with 2.2 inches of precipitation. It is the 1st-warmest and 8th-wettest month of the year here.
- Average high
- 96°F+1° vs July
- Average low
- 75°F0 nights below freezing
- Precipitation
- 2.2 in3 days with 0.1 in. or more
- Snow
- 0.0 in29 days at 90°F+
Is August a good time to visit San Antonio?
August is hot. Average highs reach 96°F, with about 29 days at 90°F or more. The most comfortable months overall are February to April and October to December.
Indoor ideas for San Antonio in August
With this heat, these are good bets: San Antonio Museum of Art, McNay Art Museum, Majestic Theatre, Witte Museum. All things to do in San Antonio.
On August 15 the sun rises at 7:02 am and sets at 8:13 pm, giving 13h 11m of daylight. Daylight all year.
What to pack for San Antonio in August
- Light, breathable clothes, a hat and sunscreen; carry water
Based on 30-year averages, not a forecast. Check the forecast a few days before you go.
August nearby
| City | Distance | High | Low | Precip. |
|---|---|---|---|---|
| San Antonio | 96°F | 75°F | 2.2 in | |
| New Braunfels, TX | 28 mi | 98°F | 73°F | 2.0 in |
| San Marcos, TX | 53 mi | 97°F | 73°F | 2.5 in |
| Austin, TX | 74 mi | 98°F | 75°F | 2.7 in |
| Cedar Park, TX | 83 mi | 98°F | 75°F | 2.7 in |
| Leander, TX | 87 mi | 98°F | 75°F | 2.7 in |
| Georgetown, TX | 95 mi | 97°F | 72°F | 2.6 in |
Frequently asked questions
What is the weather like in San Antonio in August?
In August, San Antonio averages a high of 96°F and a low of 75°F, with 2.2 inches of precipitation (NOAA 1991-2020 normals).
Is August a good time to visit San Antonio?
August is hot in San Antonio, with average highs of 96°F. Plan outdoor time for mornings and evenings.
Does it snow in San Antonio in August?
Rarely. The August snowfall normal is under half an inch.
Before and after: San Antonio in July and San Antonio in September. All twelve months: San Antonio weather by month.
NOAA NCEI 1991-2020 climate normals, station San Antonio Intl. Airport, TX, 7.5 miles from the city center.