San Antonio Oeste Weather in September
Average highs run from 17°C on September 1 to 20°C on September 30, and lows from 4°C to 7°C. Normal precipitation for the month is 19 mm over about 3 wet days.
September day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 18°C
- Average low
- 5°C
- Precipitation
- 19 mm
- Record high
- 32°CSep 10, 2013
- Record low
- -8°CSep 1, 2010
- Daylight
- 11 h 12 min to 12 h 30 min
- Cloud cover
- 54%
- Humidity
- 58%
- Dew point
- 2°C
- Wind
- 18.0 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 17°C | 4°C | 24°C 1995 | -8°C 2010 | 8% |
| Sep 2 | 17°C | 4°C | 26°C 2012 | -6°C 1988 | 9% |
| Sep 3 | 17°C | 4°C | 27°C 2007 | -4°C 2015 | 9% |
| Sep 4 | 17°C | 4°C | 28°C 2022 | -3°C 2023 | 9% |
| Sep 5 | 17°C | 4°C | 26°C 2018 | -4°C 1989 | 9% |
| Sep 6 | 17°C | 4°C | 31°C 2022 | -3°C 1976 | 9% |
| Sep 7 | 17°C | 4°C | 29°C 1980 | -8°C 1994 | 9% |
| Sep 8 | 17°C | 4°C | 24°C 1982 | -7°C 1994 | 9% |
| Sep 9 | 17°C | 5°C | 29°C 2013 | -4°C 2015 | 10% |
| Sep 10 | 18°C | 5°C | 32°C 2013 | -3°C 2004 | 11% |
| Sep 11 | 18°C | 5°C | 27°C 2012 | -3°C 2015 | 11% |
| Sep 12 | 18°C | 5°C | 28°C 1991 | -6°C 2000 | 11% |
| Sep 13 | 18°C | 5°C | 31°C 1980 | -7°C 1998 | 12% |
| Sep 14 | 18°C | 5°C | 26°C 2017 | -4°C 1998 | 11% |
| Sep 15 | 18°C | 5°C | 30°C 2018 | -4°C 1994 | 12% |
| Sep 16 | 18°C | 5°C | 27°C 1995 | -4°C 2015 | 12% |
| Sep 17 | 19°C | 5°C | 28°C 2008 | -4°C 2013 | 11% |
| Sep 18 | 19°C | 5°C | 28°C 1989 | -4°C 2023 | 10% |
| Sep 19 | 19°C | 6°C | 31°C 2017 | -3°C 2008 | 10% |
| Sep 20 | 19°C | 6°C | 28°C 2017 | -4°C 2015 | 10% |
| Sep 21 | 19°C | 6°C | 28°C 2005 | -4°C 1993 | 11% |
| Sep 22 | 19°C | 6°C | 26°C 2008 | -2°C 2019 | 11% |
| Sep 23 | 20°C | 6°C | 25°C 2021 | -3°C 1990 | 11% |
| Sep 24 | 20°C | 6°C | 29°C 2008 | -5°C 1996 | 11% |
| Sep 25 | 20°C | 6°C | 28°C 1981 | -4°C 1992 | 11% |
| Sep 26 | 20°C | 6°C | 28°C 2019 | -2°C 1973 | 12% |
| Sep 27 | 20°C | 7°C | 26°C 2000 | -2°C 1998 | 12% |
| Sep 28 | 20°C | 7°C | 31°C 2005 | -2°C 2020 | 12% |
| Sep 29 | 20°C | 7°C | 28°C 2019 | -3°C 1994 | 12% |
| Sep 30 | 20°C | 7°C | 28°C 1990 | -1°C 1993 | 11% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- September 1
- sunrise 7:44 AM, sunset 6:56 PM
- September 30
- sunrise 6:55 AM, sunset 7:25 PM
Other months
Sources
Records: NOAA GHCN-Daily, station ARM00087784, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-26. Sun and moon: computed with the NOAA solar equations and Meeus.