Cuiabá Weather in December

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

Average highs run from 32°C on December 1 to 31°C on December 31, and lows from 23°C to 23°C. Normal precipitation for the month is 195 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: 32°C
Average low: 23°C
Precipitation: 195 mm
Reanalysis high: 40°CDec 2, 2020
Reanalysis low: 16°CDec 18, 2000
Daylight: 12 h 59 min to 13 h 03 min
Cloud cover: 84%
Humidity: 78%
Dew point: 22°C
Wind: 10.1 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	32°C	23°C	39°C 2020	21°C 2001	81%
Dec 2	32°C	23°C	40°C 2020	21°C 2001	82%
Dec 3	32°C	23°C	39°C 2020	20°C 2018	82%
Dec 4	32°C	23°C	37°C 1993	17°C 2008	81%
Dec 5	32°C	23°C	36°C 1999	19°C 2008	81%
Dec 6	32°C	23°C	38°C 2002	21°C 2000	82%
Dec 7	32°C	23°C	36°C 2002	20°C 1996	82%
Dec 8	32°C	23°C	37°C 2020	21°C 1996	81%
Dec 9	32°C	23°C	36°C 1993	21°C 1995	81%
Dec 10	32°C	23°C	35°C 2008	20°C 1996	79%
Dec 11	32°C	23°C	35°C 1993	21°C 1994	79%
Dec 12	32°C	23°C	34°C 2004	20°C 2004	79%
Dec 13	32°C	23°C	35°C 2015	18°C 2010	78%
Dec 14	32°C	23°C	37°C 2004	16°C 2010	79%
Dec 15	32°C	23°C	36°C 2004	16°C 2010	79%
Dec 16	31°C	23°C	37°C 2020	18°C 2010	80%
Dec 17	32°C	23°C	38°C 2020	17°C 2000	79%
Dec 18	32°C	23°C	37°C 2015	16°C 2000	79%
Dec 19	32°C	23°C	38°C 2020	16°C 2000	79%
Dec 20	32°C	23°C	39°C 2020	19°C 2000	78%
Dec 21	32°C	23°C	36°C 2005	22°C 2009	78%
Dec 22	32°C	23°C	35°C 2003	21°C 1998	79%
Dec 23	32°C	23°C	35°C 2005	19°C 1998	80%
Dec 24	32°C	23°C	35°C 1997	21°C 1998	81%
Dec 25	32°C	23°C	36°C 2015	21°C 1998	82%
Dec 26	32°C	23°C	36°C 1997	22°C 1995	83%
Dec 27	32°C	23°C	36°C 1997	21°C 2007	83%
Dec 28	31°C	23°C	36°C 2015	21°C 2016	83%
Dec 29	31°C	23°C	36°C 2000	22°C 1991	83%
Dec 30	31°C	23°C	36°C 2020	21°C 2005	83%
Dec 31	31°C	23°C	37°C 2020	21°C 1992	83%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT-4).

December 1: sunrise 5:04 AM, sunset 6:03 PM
December 31: sunrise 5:16 AM, sunset 6:19 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.