Weather in San Antonio in August
In an average August, San Antonio sees a daily high around 96°F and a low around 75°F, based on 1980–2026 of local climate records.
| Average high | 96°F |
|---|---|
| Typical high range | 90°F to 101°F |
| Average low | 75°F |
| Typical low range | 72°F to 77°F |
| Average daily precipitation | 0.10 in |
August records
The most extreme August on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total August accumulation.
High
Highest
110°F
2011-08-28
Lowest
75°F
2017-08-27
Low
Highest
81°F
2020-08-31
Lowest
64°F
1992-08-29
Feels-like
Highest
145°F
2023-08-09
Lowest
75°F
2017-08-27
Humidity
Highest
23.8 g/m³
2015-08-20
Lowest
11.1 g/m³
2004-08-13
Wind
Highest
26 mph
2017-08-27
Lowest
4 mph
1988-08-09
Gust
Highest
60 mph
2017-08-26
Lowest
12 mph
1991-08-01
Precip
Wettest
11.71 in
2016
Driest
0.07 in
2011
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