Florianópolis Weather in December

NASA POWER reanalysis for the half-degree grid cell around Florianópolis, 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 19°C to 21°C. Normal precipitation for the month is 155 mm over about 19 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: 28°C
Average low: 20°C
Precipitation: 155 mm
Reanalysis high: 37°CDec 26, 2012
Reanalysis low: 13°CDec 8, 2018
Daylight: 13 h 45 min to 13 h 52 min
Cloud cover: 70%
Humidity: 79%
Dew point: 19°C
Wind: 16.6 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	19°C	33°C 2003	14°C 1998	60%
Dec 2	27°C	19°C	31°C 1995	14°C 2011	60%
Dec 3	27°C	19°C	33°C 2010	16°C 2019	60%
Dec 4	27°C	19°C	32°C 1994	14°C 2008	60%
Dec 5	27°C	19°C	33°C 2003	15°C 2008	60%
Dec 6	27°C	19°C	33°C 2012	14°C 2016	61%
Dec 7	27°C	19°C	35°C 2012	15°C 2018	62%
Dec 8	27°C	19°C	32°C 2010	13°C 2018	63%
Dec 9	27°C	19°C	32°C 2000	14°C 1995	63%
Dec 10	27°C	19°C	33°C 1991	16°C 2011	62%
Dec 11	27°C	19°C	36°C 2012	16°C 2005	62%
Dec 12	27°C	20°C	35°C 2018	16°C 2005	62%
Dec 13	28°C	20°C	35°C 1994	15°C 2010	62%
Dec 14	28°C	20°C	36°C 1994	15°C 2010	63%
Dec 15	28°C	20°C	33°C 2018	16°C 2010	64%
Dec 16	28°C	20°C	33°C 1995	16°C 2016	66%
Dec 17	28°C	20°C	36°C 1995	15°C 2003	66%
Dec 18	28°C	20°C	36°C 1995	16°C 1998	66%
Dec 19	28°C	20°C	34°C 1995	16°C 2000	65%
Dec 20	28°C	20°C	33°C 2011	17°C 1993	65%
Dec 21	28°C	20°C	34°C 2011	16°C 1993	65%
Dec 22	28°C	20°C	33°C 2011	17°C 2004	64%
Dec 23	28°C	20°C	35°C 2011	17°C 2003	64%
Dec 24	28°C	21°C	32°C 2012	17°C 2001	65%
Dec 25	28°C	21°C	36°C 2012	18°C 2002	67%
Dec 26	28°C	21°C	37°C 2012	17°C 2002	69%
Dec 27	28°C	21°C	35°C 2016	18°C 2002	68%
Dec 28	28°C	21°C	34°C 1997	18°C 2010	68%
Dec 29	28°C	21°C	33°C 2009	16°C 1991	69%
Dec 30	28°C	21°C	35°C 2020	16°C 1993	69%
Dec 31	28°C	21°C	33°C 2013	17°C 1993	68%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 5:11 AM, sunset 6:56 PM
December 31: sunrise 5:21 AM, sunset 7:13 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.