Geiro Weather in December
Average highs run from 28°C on December 1 to 27°C on December 31, and lows from 17°C to 17°C. Normal precipitation for the month is 171 mm over about 22 wet days.
December day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
December at a glance
- Average high
- 27°C
- Average low
- 17°C
- Precipitation
- 171 mm
- Reanalysis high
- 33°CDec 21, 1998
- Reanalysis low
- 13°CDec 6, 1992
- Daylight
- 12 h 27 min to 12 h 29 min
- Cloud cover
- 64%
- Humidity
- 77%
- Dew point
- 17°C
- Wind
- 11.9 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 |
|---|---|---|---|---|---|
| Dec 1 | 28°C | 17°C | 31°C 2010 | 15°C 1999 | 66% |
| Dec 2 | 28°C | 17°C | 31°C 2003 | 15°C 1999 | 66% |
| Dec 3 | 28°C | 17°C | 31°C 2010 | 15°C 1999 | 67% |
| Dec 4 | 28°C | 17°C | 31°C 2010 | 14°C 1993 | 68% |
| Dec 5 | 28°C | 17°C | 33°C 2010 | 13°C 1993 | 68% |
| Dec 6 | 28°C | 17°C | 31°C 2013 | 13°C 1992 | 68% |
| Dec 7 | 28°C | 17°C | 31°C 1996 | 15°C 2002 | 69% |
| Dec 8 | 28°C | 17°C | 32°C 1998 | 15°C 2020 | 69% |
| Dec 9 | 28°C | 17°C | 32°C 1998 | 15°C 1992 | 69% |
| Dec 10 | 28°C | 17°C | 32°C 2003 | 16°C 2009 | 69% |
| Dec 11 | 28°C | 17°C | 31°C 1999 | 15°C 1995 | 70% |
| Dec 12 | 28°C | 17°C | 31°C 1999 | 13°C 1995 | 70% |
| Dec 13 | 28°C | 17°C | 32°C 2005 | 13°C 1996 | 71% |
| Dec 14 | 28°C | 17°C | 32°C 1998 | 15°C 1998 | 72% |
| Dec 15 | 28°C | 17°C | 32°C 1998 | 15°C 2010 | 73% |
| Dec 16 | 28°C | 17°C | 32°C 1998 | 15°C 2005 | 74% |
| Dec 17 | 27°C | 17°C | 32°C 2005 | 15°C 2005 | 74% |
| Dec 18 | 27°C | 17°C | 31°C 2005 | 15°C 1995 | 74% |
| Dec 19 | 27°C | 17°C | 31°C 2005 | 16°C 2000 | 74% |
| Dec 20 | 27°C | 17°C | 32°C 1998 | 16°C 1999 | 75% |
| Dec 21 | 27°C | 17°C | 33°C 1998 | 16°C 2007 | 75% |
| Dec 22 | 27°C | 17°C | 33°C 1998 | 16°C 2009 | 75% |
| Dec 23 | 27°C | 17°C | 33°C 1998 | 16°C 1994 | 74% |
| Dec 24 | 27°C | 17°C | 32°C 2005 | 16°C 2012 | 75% |
| Dec 25 | 27°C | 17°C | 32°C 2005 | 15°C 2012 | 75% |
| Dec 26 | 27°C | 17°C | 31°C 1998 | 15°C 1996 | 74% |
| Dec 27 | 27°C | 17°C | 31°C 2003 | 15°C 2012 | 73% |
| Dec 28 | 27°C | 17°C | 31°C 2005 | 15°C 2018 | 72% |
| Dec 29 | 27°C | 17°C | 32°C 2005 | 15°C 2010 | 71% |
| Dec 30 | 27°C | 17°C | 32°C 2005 | 15°C 1992 | 70% |
| Dec 31 | 27°C | 17°C | 31°C 1999 | 14°C 1992 | 69% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+3).
- December 1
- sunrise 6:08 AM, sunset 6:35 PM
- December 31
- sunrise 6:21 AM, sunset 6:50 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.