Planaltina Weather in December

NASA POWER reanalysis for the half-degree grid cell around Planaltina, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 28°C on December 1 to 28°C on December 31, and lows from 19°C to 18°C. Normal precipitation for the month is 226 mm over about 25 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: 28°C
Average low: 19°C
Precipitation: 226 mm
Reanalysis high: 36°CDec 6, 2002
Reanalysis low: 14°CDec 28, 2007
Daylight: 12 h 59 min to 13 h 01 min
Cloud cover: 81%
Humidity: 80%
Dew point: 19°C
Wind: 9.0 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
Dec 1	28°C	19°C	33°C 2002	15°C 1996	85%
Dec 2	28°C	19°C	34°C 2002	16°C 2014	85%
Dec 3	28°C	19°C	35°C 2002	14°C 1996	85%
Dec 4	28°C	19°C	35°C 2002	16°C 1996	85%
Dec 5	28°C	19°C	35°C 2002	17°C 2011	84%
Dec 6	28°C	19°C	36°C 2002	17°C 2004	84%
Dec 7	28°C	19°C	31°C 2002	16°C 2012	84%
Dec 8	28°C	19°C	35°C 2002	16°C 2011	84%
Dec 9	28°C	19°C	30°C 2012	15°C 2001	83%
Dec 10	28°C	19°C	31°C 2015	15°C 1999	82%
Dec 11	28°C	19°C	31°C 2015	16°C 1994	82%
Dec 12	28°C	19°C	32°C 2015	15°C 2001	82%
Dec 13	28°C	19°C	31°C 2003	16°C 2018	81%
Dec 14	28°C	19°C	32°C 2020	17°C 2020	80%
Dec 15	28°C	19°C	33°C 2015	17°C 2020	80%
Dec 16	28°C	19°C	33°C 2015	16°C 2005	80%
Dec 17	28°C	19°C	34°C 2020	16°C 2018	79%
Dec 18	28°C	18°C	34°C 2020	15°C 2005	78%
Dec 19	28°C	18°C	34°C 2020	17°C 2010	77%
Dec 20	28°C	18°C	32°C 2003	16°C 2010	78%
Dec 21	28°C	18°C	34°C 2003	16°C 2016	78%
Dec 22	28°C	18°C	32°C 2018	17°C 1992	78%
Dec 23	28°C	18°C	33°C 2015	16°C 2006	77%
Dec 24	28°C	18°C	34°C 2015	16°C 2005	77%
Dec 25	28°C	18°C	34°C 2015	15°C 1991	77%
Dec 26	28°C	18°C	31°C 2012	15°C 2007	76%
Dec 27	28°C	18°C	31°C 2012	14°C 2007	76%
Dec 28	28°C	18°C	32°C 2019	14°C 2007	76%
Dec 29	28°C	18°C	33°C 2015	16°C 2007	76%
Dec 30	28°C	18°C	34°C 2019	16°C 1994	76%
Dec 31	28°C	18°C	33°C 2019	16°C 1992	77%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT-3).

December 1: sunrise 5:30 AM, sunset 6:29 PM
December 31: sunrise 5:43 AM, sunset 6:44 PM

Every day of December: sun and moon

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.