El Grullo Weather in September
Average highs run from 25°C on September 1 to 25°C on September 30, and lows from 16°C to 15°C. Normal precipitation for the month is 177 mm over about 24 wet days.
September day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
September at a glance
- Average high
- 25°C
- Average low
- 16°C
- Precipitation
- 177 mm
- Reanalysis high
- 30°CSep 25, 1994
- Reanalysis low
- 9°CSep 8, 2011
- Daylight
- 12 h 31 min to 11 h 58 min
- Cloud cover
- 72%
- Humidity
- 82%
- Dew point
- 16°C
- Wind
- 7.9 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 | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 25°C | 16°C | 28°C 2019 | 13°C 2002 | 90% |
| Sep 2 | 25°C | 16°C | 28°C 2000 | 14°C 1992 | 89% |
| Sep 3 | 25°C | 16°C | 29°C 2019 | 15°C 2012 | 89% |
| Sep 4 | 25°C | 16°C | 29°C 2020 | 13°C 2007 | 89% |
| Sep 5 | 25°C | 16°C | 29°C 2019 | 14°C 1992 | 89% |
| Sep 6 | 25°C | 16°C | 28°C 2000 | 11°C 2000 | 88% |
| Sep 7 | 25°C | 16°C | 28°C 2000 | 12°C 2011 | 88% |
| Sep 8 | 25°C | 16°C | 27°C 2009 | 9°C 2011 | 88% |
| Sep 9 | 25°C | 16°C | 29°C 2015 | 10°C 2011 | 88% |
| Sep 10 | 25°C | 16°C | 27°C 2016 | 9°C 2011 | 87% |
| Sep 11 | 25°C | 16°C | 28°C 2016 | 11°C 2011 | 87% |
| Sep 12 | 25°C | 16°C | 28°C 2000 | 14°C 2017 | 86% |
| Sep 13 | 25°C | 16°C | 29°C 2011 | 13°C 1993 | 84% |
| Sep 14 | 25°C | 16°C | 29°C 2011 | 14°C 2013 | 84% |
| Sep 15 | 25°C | 16°C | 28°C 2016 | 14°C 1997 | 83% |
| Sep 16 | 25°C | 16°C | 28°C 2017 | 14°C 1999 | 82% |
| Sep 17 | 25°C | 16°C | 28°C 2010 | 13°C 1991 | 82% |
| Sep 18 | 25°C | 16°C | 29°C 1997 | 12°C 1991 | 82% |
| Sep 19 | 25°C | 16°C | 28°C 2015 | 12°C 2014 | 82% |
| Sep 20 | 25°C | 16°C | 29°C 1999 | 12°C 2014 | 82% |
| Sep 21 | 25°C | 16°C | 28°C 1994 | 12°C 1999 | 82% |
| Sep 22 | 25°C | 16°C | 29°C 2015 | 10°C 1999 | 81% |
| Sep 23 | 25°C | 16°C | 29°C 2015 | 11°C 2002 | 79% |
| Sep 24 | 25°C | 16°C | 29°C 2015 | 13°C 2002 | 77% |
| Sep 25 | 25°C | 15°C | 30°C 1994 | 13°C 2017 | 75% |
| Sep 26 | 25°C | 15°C | 29°C 1994 | 14°C 1997 | 73% |
| Sep 27 | 25°C | 15°C | 29°C 1994 | 11°C 1991 | 72% |
| Sep 28 | 25°C | 15°C | 29°C 1995 | 10°C 1991 | 70% |
| Sep 29 | 25°C | 15°C | 28°C 1997 | 11°C 2000 | 70% |
| Sep 30 | 25°C | 15°C | 29°C 1995 | 11°C 1992 | 69% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CST).
- September 1
- sunrise 6:41 AM, sunset 7:12 PM
- September 30
- sunrise 6:48 AM, sunset 6:46 PM
Other months
Sources
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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.