Simão Dias Weather in December

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

Average highs run from 35°C on December 1 to 35°C on December 31, and lows from 21°C to 21°C. Normal precipitation for the month is 31 mm over about 6 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: 35°C
Average low: 21°C
Precipitation: 31 mm
Reanalysis high: 40°CDec 4, 2015
Reanalysis low: 18°CDec 29, 2014
Daylight: 12 h 43 min to 12 h 45 min
Cloud cover: 57%
Humidity: 64%
Dew point: 18°C
Wind: 18.4 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	35°C	21°C	38°C 2019	19°C 2014	16%
Dec 2	35°C	21°C	39°C 2019	19°C 2014	16%
Dec 3	35°C	21°C	39°C 2019	19°C 1994	17%
Dec 4	35°C	21°C	40°C 2015	20°C 2003	17%
Dec 5	35°C	21°C	39°C 2015	19°C 1993	17%
Dec 6	35°C	21°C	39°C 2016	19°C 2011	18%
Dec 7	35°C	21°C	39°C 2019	19°C 1996	19%
Dec 8	35°C	21°C	39°C 2016	20°C 1999	18%
Dec 9	35°C	21°C	38°C 1997	19°C 1993	18%
Dec 10	35°C	21°C	38°C 2016	18°C 2013	19%
Dec 11	35°C	21°C	39°C 2011	19°C 2013	19%
Dec 12	35°C	21°C	38°C 2013	19°C 2002	19%
Dec 13	35°C	21°C	38°C 1991	18°C 1994	19%
Dec 14	35°C	21°C	37°C 1999	19°C 1994	19%
Dec 15	35°C	21°C	37°C 1999	19°C 2017	19%
Dec 16	35°C	21°C	38°C 1997	19°C 2018	18%
Dec 17	35°C	21°C	38°C 1993	20°C 2000	17%
Dec 18	35°C	21°C	38°C 1993	19°C 2011	16%
Dec 19	35°C	21°C	39°C 1994	19°C 1995	16%
Dec 20	35°C	21°C	38°C 1993	18°C 2018	16%
Dec 21	35°C	21°C	39°C 1993	19°C 1992	16%
Dec 22	35°C	21°C	38°C 2002	19°C 2006	15%
Dec 23	35°C	21°C	38°C 2002	18°C 2005	15%
Dec 24	35°C	21°C	38°C 2010	19°C 1992	15%
Dec 25	35°C	21°C	37°C 2002	18°C 1992	14%
Dec 26	35°C	21°C	37°C 1997	19°C 1992	13%
Dec 27	35°C	21°C	37°C 2004	18°C 2014	13%
Dec 28	35°C	21°C	38°C 2004	19°C 1998	14%
Dec 29	35°C	21°C	37°C 2018	18°C 2014	16%
Dec 30	35°C	21°C	37°C 1993	19°C 2000	16%
Dec 31	35°C	21°C	38°C 1993	18°C 1992	17%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 4:59 AM, sunset 5:42 PM
December 31: sunrise 5:12 AM, sunset 5:57 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.