Normal weather in San Antonio in September
The weather in San Antonio in September has an average temperature of around 32°C during the day. On average, September sees 137 mm of rain in San Antonio. The wind speed is 4 Beaufort and mainly comes from East.
After August, September in San Antonio starts with a temperature of 33°C and ends around October at 32°C.
The hurricane season in San Antonio lasts from early June to late November.
September averages for San Antonio
 Average temperature | 32°C |
 Highest daytime temperature | 33°C |
| Lowest daytime temperature | 31°C |
 Total rainfall | 137 mm |
| Rainy days | 19 days |
Temperature per day in September in San Antonio
This graph shows the average daily maximum temperatures in September in San Antonio, indicated in degrees Celsius.
Precipitation per day in September in San Antonio
This graph shows the average daily precipitation in September in San Antonio, indicated in millimeters.
UV index per day in September in San Antonio
This graph shows the average daily UV index in September in San Antonio.
Yearly temperature in September in San Antonio
This graph shows the average yearly temperature in September in San Antonio, measured in degrees Celsius, over the past years.
Yearly total precipitation in September in San Antonio
This graph shows the average yearly precipitation in millimeters in September in San Antonio, over the past years.
Average daily weather in September
Click on a day to get more information about the average weather on that day.
Average weather in San Antonio per month
Click on a month below to see in detail how the weather typically is in San Antonio and what to expect. Based on the historical weather data of San Antonio, you can view the average temperature, precipitation, wind, and UV index for each day of the month.