Geiro Weather in September
Average highs run from 25°C on September 1 to 27°C on September 30, and lows from 13°C to 14°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
- 26°C
- Average low
- 14°C
- Precipitation
- 12 mm
- Reanalysis high
- 31°CSep 30, 2015
- Reanalysis low
- 9°CSep 21, 1996
- Daylight
- 11 h 59 min to 12 h 09 min
- Cloud cover
- 55%
- Humidity
- 70%
- Dew point
- 13°C
- Wind
- 17.6 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 | 25°C | 13°C | 29°C 2013 | 10°C 2020 | 8% |
| Sep 2 | 25°C | 13°C | 29°C 2004 | 11°C 1991 | 9% |
| Sep 3 | 25°C | 13°C | 30°C 2004 | 11°C 2013 | 8% |
| Sep 4 | 25°C | 13°C | 28°C 2004 | 11°C 2016 | 9% |
| Sep 5 | 26°C | 13°C | 29°C 2004 | 10°C 1994 | 10% |
| Sep 6 | 26°C | 13°C | 29°C 2001 | 10°C 2008 | 10% |
| Sep 7 | 26°C | 13°C | 29°C 2001 | 10°C 2008 | 10% |
| Sep 8 | 26°C | 13°C | 28°C 2002 | 11°C 2015 | 10% |
| Sep 9 | 26°C | 13°C | 28°C 2010 | 11°C 1996 | 10% |
| Sep 10 | 26°C | 14°C | 30°C 2002 | 12°C 2013 | 9% |
| Sep 11 | 26°C | 14°C | 30°C 2002 | 12°C 2005 | 10% |
| Sep 12 | 26°C | 14°C | 29°C 2003 | 12°C 2004 | 10% |
| Sep 13 | 26°C | 14°C | 30°C 2003 | 12°C 2010 | 10% |
| Sep 14 | 26°C | 14°C | 30°C 1996 | 12°C 2008 | 12% |
| Sep 15 | 26°C | 14°C | 29°C 2013 | 10°C 2008 | 13% |
| Sep 16 | 26°C | 14°C | 29°C 2009 | 12°C 2001 | 13% |
| Sep 17 | 27°C | 14°C | 29°C 2009 | 10°C 2017 | 12% |
| Sep 18 | 27°C | 14°C | 30°C 2015 | 11°C 1995 | 12% |
| Sep 19 | 27°C | 14°C | 29°C 2015 | 11°C 1994 | 12% |
| Sep 20 | 27°C | 14°C | 29°C 2008 | 10°C 1993 | 12% |
| Sep 21 | 27°C | 14°C | 29°C 2008 | 9°C 1996 | 12% |
| Sep 22 | 27°C | 14°C | 29°C 2003 | 10°C 1995 | 12% |
| Sep 23 | 27°C | 14°C | 29°C 2012 | 11°C 1991 | 12% |
| Sep 24 | 27°C | 14°C | 30°C 2012 | 9°C 2010 | 13% |
| Sep 25 | 27°C | 14°C | 29°C 2012 | 11°C 2001 | 14% |
| Sep 26 | 27°C | 14°C | 31°C 2004 | 11°C 1993 | 14% |
| Sep 27 | 27°C | 14°C | 30°C 2013 | 11°C 1991 | 14% |
| Sep 28 | 27°C | 14°C | 30°C 2013 | 12°C 1993 | 15% |
| Sep 29 | 27°C | 14°C | 30°C 2015 | 11°C 1993 | 15% |
| Sep 30 | 27°C | 14°C | 31°C 2015 | 12°C 1993 | 16% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+3).
- September 1
- sunrise 6:33 AM, sunset 6:32 PM
- September 30
- sunrise 6:18 AM, sunset 6:27 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.