Expect the average daily weather in San Antonio in the time of September is 25. With the average high being 33 and typical average low being around 21 celsius. We have put some more information here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 25 |
| High Temperature | 33 |
| Low Temperature | 21 |
Useful Links: San Antonio Weather: Average Weather & Yearly Climate