São Simão Weather in September
Average highs run from 35°C on September 1 to 35°C on September 30, and lows from 19°C to 21°C. Normal precipitation for the month is 63 mm over about 9 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
- 35°C
- Average low
- 20°C
- Precipitation
- 63 mm
- Reanalysis high
- 43°CSep 30, 2020
- Reanalysis low
- 8°CSep 3, 2002
- Daylight
- 11 h 45 min to 12 h 15 min
- Cloud cover
- 46%
- Humidity
- 48%
- Dew point
- 14°C
- Wind
- 13.0 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 | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 35°C | 19°C | 38°C 2019 | 16°C 2002 | 14% |
| Sep 2 | 35°C | 19°C | 38°C 2018 | 11°C 2002 | 15% |
| Sep 3 | 35°C | 19°C | 38°C 2019 | 8°C 2002 | 16% |
| Sep 4 | 35°C | 19°C | 39°C 2019 | 12°C 2002 | 16% |
| Sep 5 | 35°C | 20°C | 40°C 2019 | 10°C 2006 | 17% |
| Sep 6 | 35°C | 20°C | 40°C 1999 | 9°C 2006 | 17% |
| Sep 7 | 35°C | 20°C | 40°C 1999 | 12°C 2006 | 19% |
| Sep 8 | 35°C | 20°C | 39°C 2020 | 13°C 1995 | 20% |
| Sep 9 | 35°C | 20°C | 40°C 1997 | 14°C 1995 | 21% |
| Sep 10 | 35°C | 20°C | 39°C 2020 | 13°C 1996 | 22% |
| Sep 11 | 35°C | 20°C | 40°C 2019 | 12°C 1996 | 22% |
| Sep 12 | 35°C | 20°C | 41°C 2019 | 12°C 1996 | 23% |
| Sep 13 | 35°C | 21°C | 40°C 2019 | 16°C 1996 | 24% |
| Sep 14 | 35°C | 21°C | 40°C 2019 | 18°C 2015 | 26% |
| Sep 15 | 35°C | 21°C | 40°C 2019 | 16°C 2003 | 26% |
| Sep 16 | 35°C | 21°C | 39°C 2012 | 15°C 2001 | 27% |
| Sep 17 | 35°C | 21°C | 40°C 2010 | 9°C 2001 | 28% |
| Sep 18 | 35°C | 21°C | 41°C 2019 | 11°C 2001 | 28% |
| Sep 19 | 35°C | 21°C | 40°C 2019 | 17°C 2001 | 30% |
| Sep 20 | 35°C | 21°C | 39°C 2019 | 17°C 1995 | 32% |
| Sep 21 | 35°C | 21°C | 40°C 2007 | 15°C 1995 | 33% |
| Sep 22 | 35°C | 21°C | 40°C 2007 | 15°C 2016 | 33% |
| Sep 23 | 35°C | 21°C | 41°C 2007 | 12°C 2008 | 33% |
| Sep 24 | 35°C | 21°C | 40°C 2004 | 13°C 1999 | 35% |
| Sep 25 | 35°C | 21°C | 41°C 2004 | 14°C 1999 | 35% |
| Sep 26 | 35°C | 21°C | 41°C 1994 | 15°C 2002 | 36% |
| Sep 27 | 35°C | 21°C | 40°C 2004 | 11°C 2012 | 36% |
| Sep 28 | 35°C | 21°C | 41°C 2020 | 13°C 2012 | 36% |
| Sep 29 | 35°C | 21°C | 42°C 2020 | 15°C 1992 | 36% |
| Sep 30 | 35°C | 21°C | 43°C 2020 | 17°C 1992 | 38% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- September 1
- sunrise 6:30 AM, sunset 6:15 PM
- September 30
- sunrise 6:05 AM, sunset 6:20 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.