San Antonio (Texas) in september: average Weather, Temperature and Climate
Weather in San Antonio (Texas) in september 2025
The weather in San Antonio (Texas) in the month september comes from statistical datas on the last years. You can view the weather statistics the entire month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather UV index: 7
Weather at 6am
76°F
Clear/Sunny
32% of time
23%
19%
17%
Weather at 12pm
90°F
Clear/Sunny
41% of time
24%
21%
8%
Weather at 6pm
86°F
Clear/Sunny
38% of time
24%
22%
13%
Weather at 3am
76°F
42%
22%
19%
8%
Evolution of daily average temperature and precipitation in San Antonio (Texas) in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in San Antonio (Texas) in september.
The climate of San Antonio (Texas) in september is good
The weather in september in San Antonio (Texas) is quite dry (with 7.4in of precipitation over 9 days). The weather's not getting better compared to the previous month since in august there is an average of 2.9in of precipitation over 4 days.
The climate is very hot in that area this month. The high seasonal norm is 92°F. The minimum is 76°F. Thus, the mean temperature average in september in San Antonio (Texas) is 83°F. Note that these seasonal averages are in contrast with those observed in San Antonio (Texas) in the month september with a maximum record of 104°F in 2012 and a minimum record of 61°F in 2009. You can plan to have about 25 days with temperatures above 86°F, or 83 of time.
In september in San Antonio (Texas), the days on average last 12:19. Sunrise is at 06:19 and sunset is at 18:38.
With a good climate, this month is advisable to go there in United States.
Seasonal average climate and temperature of San Antonio (Texas) in september
Check below seasonal norms These statistics are set from the weather statements earlier years of the month september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 83°F | ||||
| Highest temperature | 92°F | ||||
| Lowest temperature | 76°F | ||||
| Highest record temperature | 104°F (2012) | ||||
| Lowest record temperature | 61°F (2009) | ||||
| Number of days at +86°F | 25 day(s) (83%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Wind | |||||
| Wind speed | 15km/h | ||||
| Wind temperature | 76°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 7.4in | ||||
| Number of days with rainfall | 9 day(s) (31%) | ||||
| Record daily rainfall | 3.5in (2018) | ||||
| Other climate data | |||||
| Humidity | 84% | ||||
| Visibility | 9.17km | ||||
| Cloud cover | 32% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:19 | ||||
| Time of sunset | 18:38 | ||||
| Length of day | 12:19 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in San Antonio (Texas) in september 2024:
81°F to 92°F
77°F to 90°F
76°F to 86°F
74°F to 85°F
74°F to 92°F
77°F to 92°F
76°F to 90°F
70°F to 88°F
68°F to 88°F
72°F to 92°F
74°F to 90°F
74°F to 94°F
76°F to 97°F
77°F to 97°F
77°F to 94°F
72°F to 94°F
76°F to 103°F
77°F to 95°F
77°F to 97°F
76°F to 101°F
79°F to 97°F
76°F to 94°F
76°F to 97°F
76°F to 99°F
74°F to 94°F
72°F to 92°F
63°F to 97°F
68°F to 99°F
67°F to 99°F
67°F to 99°F
Map: other cities in the United States (USA) in september
Cities near San Antonio (Texas):
| Austin in september | good weather |
| Corpus Christi in september | good weather |
| Port Aransas in september | good weather |
| Waco (Texas) in september | good weather |
| Houston in september | good weather |
| Galveston in september | tolerable weather |
| McAllen in september | good weather |
| South Padre Island in september | good weather |
| Dallas in september | good weather |
| Odessa in september | good weather |
| Big Bend National Park (Texas) in september | perfect weather |
| Louisiana in september | good weather |
Click over cities on the map for information about the weather in september.
San Antonio (Texas)
perfect weather
good
tolerable
bad
very bad
Weather data for San Antonio (Texas) in september:
Weather data for San Antonio (Texas) for september are derived from an average of the weather forecast since 2009 in San Antonio (Texas). There is a margin of error and these forecasts are to be considered as general information only. The weather in San Antonio (Texas) can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to San Antonio (Texas).