Santana do Araguaia Weather in December

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

Average highs run from 31°C on December 1 to 29°C on December 31, and lows from 23°C to 23°C. Normal precipitation for the month is 233 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: 30°C
Average low: 23°C
Precipitation: 233 mm
Reanalysis high: 39°CDec 7, 2002
Reanalysis low: 20°CDec 16, 2005
Daylight: 12 h 37 min to 12 h 39 min
Cloud cover: 82%
Humidity: 85%
Dew point: 23°C
Wind: 2.5 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	31°C	23°C	37°C 2015	21°C 1996	78%
Dec 2	30°C	23°C	39°C 2015	21°C 1996	78%
Dec 3	30°C	23°C	39°C 2015	21°C 1992	79%
Dec 4	30°C	23°C	37°C 2020	21°C 2014	80%
Dec 5	30°C	23°C	38°C 2013	21°C 1999	79%
Dec 6	30°C	23°C	38°C 2002	21°C 1999	80%
Dec 7	30°C	23°C	39°C 2002	22°C 2018	80%
Dec 8	30°C	23°C	34°C 2013	21°C 2011	80%
Dec 9	30°C	23°C	34°C 2015	22°C 2003	81%
Dec 10	30°C	23°C	36°C 2015	21°C 2018	82%
Dec 11	30°C	23°C	37°C 2015	22°C 2020	83%
Dec 12	30°C	23°C	37°C 2015	21°C 1995	84%
Dec 13	30°C	23°C	37°C 2015	21°C 2014	84%
Dec 14	30°C	23°C	33°C 2020	21°C 2005	83%
Dec 15	30°C	23°C	36°C 2015	20°C 2018	83%
Dec 16	30°C	23°C	38°C 2015	20°C 2005	83%
Dec 17	30°C	23°C	36°C 2015	21°C 1991	83%
Dec 18	29°C	23°C	34°C 2015	21°C 1993	82%
Dec 19	29°C	23°C	35°C 2015	20°C 2010	82%
Dec 20	29°C	23°C	35°C 1996	21°C 1997	82%
Dec 21	29°C	23°C	34°C 2015	21°C 2009	82%
Dec 22	29°C	23°C	34°C 2015	21°C 2008	81%
Dec 23	29°C	23°C	34°C 2015	21°C 2000	81%
Dec 24	29°C	23°C	35°C 2019	21°C 1998	80%
Dec 25	29°C	23°C	34°C 2006	21°C 2000	80%
Dec 26	29°C	23°C	34°C 2015	21°C 1999	78%
Dec 27	29°C	23°C	34°C 2006	21°C 1993	78%
Dec 28	29°C	23°C	34°C 2015	21°C 1994	79%
Dec 29	29°C	23°C	35°C 2015	22°C 2005	80%
Dec 30	29°C	23°C	34°C 2015	21°C 2005	80%
Dec 31	29°C	23°C	36°C 2015	20°C 1992	80%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 5:52 AM, sunset 6:29 PM
December 31: sunrise 6:05 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 2026-09-26. Sun and moon: computed with the NOAA solar equations and Meeus.