Olímpia Weather in December

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

Average highs run from 31°C on December 1 to 29°C on December 31, and lows from 21°C to 21°C. Normal precipitation for the month is 217 mm over about 25 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: 30°C
Average low: 21°C
Precipitation: 217 mm
Reanalysis high: 38°CDec 1, 2020
Reanalysis low: 15°CDec 3, 2001
Daylight: 13 h 18 min to 13 h 23 min
Cloud cover: 73%
Humidity: 77%
Dew point: 21°C
Wind: 11.5 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	31°C	21°C	38°C 2020	17°C 2001	71%
Dec 2	30°C	21°C	37°C 2007	16°C 2001	72%
Dec 3	30°C	21°C	38°C 2007	15°C 2001	74%
Dec 4	30°C	21°C	35°C 2020	16°C 2008	75%
Dec 5	30°C	21°C	35°C 2020	18°C 2008	76%
Dec 6	30°C	21°C	36°C 2008	20°C 2008	77%
Dec 7	30°C	22°C	36°C 2008	18°C 2000	78%
Dec 8	30°C	22°C	36°C 2012	18°C 2018	78%
Dec 9	30°C	21°C	35°C 2008	17°C 2018	78%
Dec 10	30°C	21°C	35°C 1995	20°C 2001	78%
Dec 11	30°C	21°C	32°C 2010	19°C 2011	79%
Dec 12	30°C	21°C	34°C 2010	16°C 2004	79%
Dec 13	30°C	21°C	33°C 1994	17°C 2004	79%
Dec 14	30°C	21°C	33°C 1994	17°C 1992	79%
Dec 15	30°C	21°C	34°C 2003	17°C 1995	80%
Dec 16	29°C	21°C	35°C 2018	18°C 2016	80%
Dec 17	29°C	21°C	34°C 2018	19°C 2000	80%
Dec 18	29°C	21°C	34°C 1999	18°C 2000	79%
Dec 19	30°C	21°C	35°C 1999	19°C 1998	78%
Dec 20	29°C	21°C	35°C 1999	17°C 1998	78%
Dec 21	30°C	21°C	34°C 2010	18°C 2007	79%
Dec 22	30°C	21°C	34°C 1999	19°C 1993	79%
Dec 23	30°C	21°C	33°C 1997	20°C 2011	80%
Dec 24	30°C	21°C	33°C 2015	18°C 2001	80%
Dec 25	29°C	21°C	32°C 2012	18°C 2001	80%
Dec 26	29°C	21°C	33°C 1999	18°C 2001	80%
Dec 27	29°C	21°C	34°C 2007	17°C 1992	80%
Dec 28	29°C	22°C	34°C 2007	17°C 1992	81%
Dec 29	29°C	22°C	35°C 2007	19°C 2005	80%
Dec 30	29°C	22°C	35°C 2007	19°C 2010	80%
Dec 31	29°C	21°C	36°C 2007	17°C 1993	80%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 5:26 AM, sunset 6:44 PM
December 31: sunrise 5:37 AM, sunset 7:00 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.