Marechal Floriano Weather in December

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

Average highs run from 27°C on December 1 to 28°C on December 31, and lows from 20°C to 21°C. Normal precipitation for the month is 195 mm over about 22 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: 27°C
Average low: 21°C
Precipitation: 195 mm
Reanalysis high: 35°CDec 29, 2014
Reanalysis low: 16°CDec 5, 2005
Daylight: 13 h 16 min to 13 h 21 min
Cloud cover: 72%
Humidity: 84%
Dew point: 20°C
Wind: 16.2 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	27°C	20°C	33°C 1993	19°C 1996	72%
Dec 2	27°C	20°C	33°C 2002	18°C 2006	73%
Dec 3	27°C	20°C	32°C 2002	17°C 2006	73%
Dec 4	27°C	20°C	31°C 2002	17°C 2005	74%
Dec 5	27°C	20°C	32°C 2002	16°C 2005	74%
Dec 6	27°C	20°C	31°C 2007	18°C 1992	75%
Dec 7	27°C	21°C	31°C 2015	18°C 2008	74%
Dec 8	27°C	21°C	31°C 2002	18°C 2018	74%
Dec 9	27°C	21°C	30°C 1993	17°C 2018	73%
Dec 10	27°C	21°C	29°C 2015	17°C 1996	72%
Dec 11	27°C	21°C	30°C 2007	17°C 1996	72%
Dec 12	27°C	21°C	32°C 2003	18°C 2011	72%
Dec 13	27°C	21°C	32°C 2009	18°C 1992	71%
Dec 14	27°C	21°C	31°C 2015	18°C 1992	70%
Dec 15	27°C	21°C	31°C 2015	17°C 1992	68%
Dec 16	27°C	21°C	32°C 2015	19°C 2014	67%
Dec 17	27°C	21°C	32°C 1993	18°C 2014	66%
Dec 18	28°C	21°C	31°C 2012	19°C 2017	66%
Dec 19	28°C	21°C	31°C 2018	19°C 2017	67%
Dec 20	28°C	21°C	31°C 2015	19°C 2008	66%
Dec 21	28°C	21°C	31°C 2018	19°C 2017	66%
Dec 22	28°C	21°C	31°C 2018	19°C 1993	66%
Dec 23	28°C	21°C	32°C 2018	19°C 1993	64%
Dec 24	28°C	21°C	32°C 2015	19°C 1992	64%
Dec 25	28°C	21°C	31°C 2015	19°C 1992	63%
Dec 26	28°C	21°C	33°C 2012	19°C 2011	63%
Dec 27	28°C	21°C	32°C 2012	19°C 1992	62%
Dec 28	28°C	21°C	33°C 2014	19°C 2005	61%
Dec 29	28°C	21°C	35°C 2014	19°C 2011	61%
Dec 30	28°C	21°C	33°C 2014	19°C 2011	61%
Dec 31	28°C	21°C	33°C 2015	19°C 1992	61%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 4:54 AM, sunset 6:10 PM
December 31: sunrise 5:05 AM, sunset 6:26 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.