Santa María Weather in September
Average highs run from 15°C on September 1 to 17°C on September 30, and lows from -2°C to -1°C. Normal precipitation for the month is 12 mm over about 3 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
- 16°C
- Average low
- -1°C
- Precipitation
- 12 mm
- Reanalysis high
- 25°CSep 25, 2020
- Reanalysis low
- -10°CSep 1, 2005
- Daylight
- 11 h 35 min to 12 h 19 min
- Cloud cover
- 41%
- Humidity
- 42%
- Dew point
- -8°C
- Wind
- 12.6 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 | 15°C | -2°C | 21°C 2017 | -10°C 2005 | 5% |
| Sep 2 | 15°C | -2°C | 21°C 2008 | -6°C 1992 | 6% |
| Sep 3 | 15°C | -2°C | 22°C 2004 | -7°C 2016 | 6% |
| Sep 4 | 15°C | -2°C | 21°C 2004 | -7°C 2016 | 7% |
| Sep 5 | 16°C | -2°C | 21°C 1995 | -6°C 2008 | 7% |
| Sep 6 | 16°C | -2°C | 21°C 1997 | -7°C 2008 | 7% |
| Sep 7 | 16°C | -2°C | 22°C 1997 | -6°C 1998 | 7% |
| Sep 8 | 16°C | -2°C | 21°C 1997 | -8°C 2003 | 6% |
| Sep 9 | 16°C | -2°C | 21°C 2014 | -9°C 2003 | 7% |
| Sep 10 | 16°C | -2°C | 21°C 2013 | -8°C 2003 | 7% |
| Sep 11 | 16°C | -2°C | 22°C 2016 | -8°C 2005 | 7% |
| Sep 12 | 16°C | -2°C | 24°C 2016 | -8°C 2005 | 6% |
| Sep 13 | 16°C | -2°C | 21°C 1996 | -8°C 2005 | 7% |
| Sep 14 | 16°C | -2°C | 21°C 2012 | -6°C 2017 | 7% |
| Sep 15 | 16°C | -2°C | 21°C 2012 | -5°C 2005 | 7% |
| Sep 16 | 16°C | -2°C | 21°C 1997 | -6°C 2005 | 8% |
| Sep 17 | 16°C | -1°C | 21°C 2019 | -7°C 2013 | 9% |
| Sep 18 | 16°C | -1°C | 22°C 2004 | -6°C 1998 | 9% |
| Sep 19 | 16°C | -1°C | 22°C 1994 | -7°C 1995 | 9% |
| Sep 20 | 16°C | -1°C | 23°C 1994 | -7°C 1995 | 10% |
| Sep 21 | 17°C | -1°C | 21°C 1994 | -4°C 2013 | 10% |
| Sep 22 | 17°C | -1°C | 22°C 1994 | -6°C 2013 | 10% |
| Sep 23 | 17°C | -1°C | 23°C 1994 | -7°C 2007 | 11% |
| Sep 24 | 17°C | -1°C | 22°C 2020 | -7°C 2007 | 11% |
| Sep 25 | 17°C | -1°C | 25°C 2020 | -6°C 2007 | 11% |
| Sep 26 | 17°C | -1°C | 23°C 2020 | -5°C 2005 | 12% |
| Sep 27 | 17°C | -1°C | 22°C 2019 | -5°C 1998 | 12% |
| Sep 28 | 17°C | -1°C | 22°C 2011 | -7°C 1995 | 12% |
| Sep 29 | 17°C | -1°C | 22°C 2019 | -6°C 1995 | 13% |
| Sep 30 | 17°C | -1°C | 24°C 2019 | -5°C 1993 | 12% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- September 1
- sunrise 7:37 AM, sunset 7:12 PM
- September 30
- sunrise 7:05 AM, sunset 7:24 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.