Franco da Rocha Weather in December

NASA POWER reanalysis for the half-degree grid cell around Franco da Rocha, 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 27°C on December 31, and lows from 17°C to 19°C. Normal precipitation for the month is 189 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: 18°C
Precipitation: 189 mm
Reanalysis high: 34°CDec 15, 2018
Reanalysis low: 11°CDec 14, 1992
Daylight: 13 h 28 min to 13 h 33 min
Cloud cover: 76%
Humidity: 82%
Dew point: 19°C
Wind: 12.6 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	27°C	17°C	33°C 2014	15°C 2001	69%
Dec 2	27°C	17°C	33°C 2014	14°C 2001	70%
Dec 3	27°C	18°C	34°C 2020	14°C 1991	70%
Dec 4	27°C	18°C	33°C 1994	13°C 2008	70%
Dec 5	27°C	18°C	33°C 2012	13°C 1992	72%
Dec 6	27°C	18°C	33°C 2012	14°C 2008	73%
Dec 7	27°C	18°C	33°C 2012	14°C 2008	74%
Dec 8	27°C	18°C	31°C 1993	12°C 2019	74%
Dec 9	27°C	18°C	32°C 2013	12°C 2018	74%
Dec 10	27°C	18°C	32°C 2012	13°C 1996	74%
Dec 11	27°C	18°C	34°C 2012	15°C 2011	76%
Dec 12	27°C	18°C	33°C 2018	14°C 2011	76%
Dec 13	27°C	18°C	33°C 2018	14°C 1992	76%
Dec 14	27°C	18°C	33°C 2018	11°C 1992	76%
Dec 15	27°C	18°C	34°C 2018	12°C 1995	77%
Dec 16	27°C	18°C	33°C 2018	14°C 1995	77%
Dec 17	27°C	18°C	34°C 2018	15°C 2008	78%
Dec 18	27°C	18°C	33°C 2014	15°C 2000	79%
Dec 19	27°C	18°C	31°C 2006	15°C 2000	78%
Dec 20	27°C	18°C	31°C 2020	15°C 2000	78%
Dec 21	28°C	18°C	33°C 2011	15°C 1993	77%
Dec 22	28°C	19°C	33°C 2011	15°C 1993	76%
Dec 23	28°C	19°C	33°C 2011	14°C 1993	76%
Dec 24	28°C	19°C	32°C 2011	13°C 1992	76%
Dec 25	28°C	19°C	32°C 2012	15°C 1994	77%
Dec 26	28°C	19°C	33°C 2016	15°C 1992	77%
Dec 27	28°C	19°C	34°C 2014	14°C 1992	78%
Dec 28	27°C	19°C	34°C 2014	14°C 1992	78%
Dec 29	27°C	19°C	33°C 2016	15°C 1992	79%
Dec 30	27°C	19°C	33°C 2007	15°C 1993	79%
Dec 31	27°C	19°C	33°C 2007	14°C 1993	79%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 5:12 AM, sunset 6:40 PM
December 31: sunrise 5:23 AM, sunset 6:56 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.