Umbaúba Weather in December

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

Average highs run from 30°C on December 1 to 31°C on December 31, and lows from 24°C to 24°C. Normal precipitation for the month is 37 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: 31°C
Average low: 24°C
Precipitation: 37 mm
Reanalysis high: 34°CDec 7, 2019
Reanalysis low: 22°CDec 5, 1992
Daylight: 12 h 45 min to 12 h 47 min
Cloud cover: 54%
Humidity: 74%
Dew point: 21°C
Wind: 14.0 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	30°C	24°C	33°C 1997	22°C 1992	22%
Dec 2	30°C	24°C	34°C 2019	23°C 1995	22%
Dec 3	30°C	24°C	33°C 2019	22°C 1994	22%
Dec 4	31°C	24°C	34°C 2008	22°C 1992	22%
Dec 5	31°C	24°C	33°C 2015	22°C 1992	22%
Dec 6	31°C	24°C	33°C 2019	23°C 1996	22%
Dec 7	31°C	24°C	34°C 2019	22°C 2011	23%
Dec 8	31°C	24°C	34°C 2018	23°C 1999	23%
Dec 9	31°C	24°C	33°C 2010	23°C 1994	24%
Dec 10	31°C	24°C	32°C 2004	22°C 1997	25%
Dec 11	31°C	24°C	33°C 2011	23°C 1996	26%
Dec 12	31°C	24°C	32°C 2013	23°C 1996	26%
Dec 13	31°C	24°C	33°C 2009	22°C 1994	26%
Dec 14	31°C	24°C	32°C 2010	22°C 1994	27%
Dec 15	31°C	24°C	34°C 1995	23°C 2017	27%
Dec 16	30°C	24°C	32°C 2007	23°C 2017	27%
Dec 17	30°C	24°C	31°C 1998	23°C 2000	26%
Dec 18	31°C	24°C	32°C 2002	23°C 1991	25%
Dec 19	31°C	24°C	34°C 1994	23°C 1995	25%
Dec 20	31°C	24°C	31°C 1993	23°C 1995	25%
Dec 21	31°C	24°C	33°C 1993	22°C 1992	25%
Dec 22	31°C	24°C	33°C 2002	22°C 2012	24%
Dec 23	31°C	24°C	33°C 2002	23°C 1992	24%
Dec 24	31°C	24°C	34°C 2002	22°C 1992	22%
Dec 25	31°C	24°C	32°C 2010	22°C 1992	22%
Dec 26	31°C	24°C	32°C 2006	22°C 1992	22%
Dec 27	31°C	24°C	32°C 2006	22°C 1991	21%
Dec 28	31°C	24°C	32°C 2009	23°C 1999	22%
Dec 29	31°C	24°C	33°C 1995	22°C 2014	23%
Dec 30	31°C	24°C	32°C 1996	23°C 2020	23%
Dec 31	31°C	24°C	32°C 2018	23°C 1992	23%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 4:57 AM, sunset 5:42 PM
December 31: sunrise 5:10 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.