Rio Negrinho Weather in December

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

Average highs run from 25°C on December 1 to 26°C on December 31, and lows from 16°C to 18°C. Normal precipitation for the month is 167 mm over about 21 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: 26°C
Average low: 17°C
Precipitation: 167 mm
Reanalysis high: 35°CDec 11, 2012
Reanalysis low: 10°CDec 14, 2010
Daylight: 13 h 40 min to 13 h 46 min
Cloud cover: 77%
Humidity: 85%
Dew point: 18°C
Wind: 3.6 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	25°C	16°C	32°C 2003	11°C 1994	61%
Dec 2	25°C	16°C	31°C 2014	11°C 2001	61%
Dec 3	25°C	16°C	33°C 2003	12°C 2011	61%
Dec 4	25°C	16°C	34°C 2012	10°C 2008	61%
Dec 5	25°C	16°C	33°C 2012	12°C 2016	60%
Dec 6	26°C	16°C	35°C 2012	14°C 2008	62%
Dec 7	26°C	16°C	35°C 2012	14°C 2018	63%
Dec 8	26°C	17°C	32°C 2014	11°C 2018	64%
Dec 9	26°C	17°C	31°C 2012	12°C 2018	64%
Dec 10	26°C	17°C	35°C 2012	12°C 2003	65%
Dec 11	26°C	17°C	35°C 2012	13°C 2005	65%
Dec 12	26°C	17°C	31°C 2018	13°C 2005	65%
Dec 13	26°C	17°C	32°C 2020	12°C 2010	66%
Dec 14	26°C	17°C	31°C 2018	10°C 2010	68%
Dec 15	26°C	17°C	32°C 2018	11°C 2010	69%
Dec 16	26°C	17°C	31°C 2006	13°C 2016	70%
Dec 17	26°C	17°C	34°C 2006	14°C 2000	71%
Dec 18	26°C	17°C	31°C 1995	12°C 2000	71%
Dec 19	26°C	17°C	32°C 2006	11°C 2000	71%
Dec 20	26°C	17°C	31°C 2014	14°C 1998	71%
Dec 21	26°C	17°C	31°C 2012	13°C 1993	71%
Dec 22	26°C	18°C	29°C 1997	14°C 2004	70%
Dec 23	26°C	18°C	30°C 1997	14°C 1998	70%
Dec 24	26°C	18°C	32°C 2012	13°C 2001	71%
Dec 25	26°C	18°C	35°C 2012	14°C 2003	72%
Dec 26	26°C	18°C	35°C 2012	14°C 2002	74%
Dec 27	26°C	18°C	32°C 2013	13°C 2002	75%
Dec 28	26°C	18°C	32°C 2019	13°C 1991	74%
Dec 29	26°C	18°C	33°C 2019	12°C 1991	74%
Dec 30	26°C	18°C	33°C 2020	13°C 1993	74%
Dec 31	26°C	18°C	34°C 2019	14°C 1993	74%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 5:17 AM, sunset 6:57 PM
December 31: sunrise 5:28 AM, sunset 7:14 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.