Puerto Iguazú Weather in December

NASA POWER reanalysis for the half-degree grid cell around Puerto Iguazú, 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 32°C on December 31, and lows from 21°C to 23°C. Normal precipitation for the month is 174 mm over about 16 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: 32°C
Average low: 22°C
Precipitation: 174 mm
Reanalysis high: 40°CDec 21, 2011
Reanalysis low: 10°CDec 14, 2010
Daylight: 13 h 37 min to 13 h 43 min
Cloud cover: 65%
Humidity: 71%
Dew point: 20°C
Wind: 6.5 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 1995	13°C 2001	46%
Dec 2	31°C	21°C	38°C 1998	14°C 2011	46%
Dec 3	31°C	21°C	37°C 2007	15°C 2018	46%
Dec 4	31°C	22°C	38°C 2007	15°C 2008	47%
Dec 5	31°C	22°C	38°C 1999	16°C 2008	48%
Dec 6	31°C	22°C	35°C 2008	15°C 2019	48%
Dec 7	31°C	22°C	36°C 2008	15°C 2019	48%
Dec 8	31°C	22°C	37°C 2008	16°C 2018	48%
Dec 9	31°C	22°C	37°C 2008	18°C 2003	49%
Dec 10	31°C	22°C	37°C 2000	15°C 2003	49%
Dec 11	31°C	22°C	36°C 2018	18°C 2005	48%
Dec 12	31°C	22°C	35°C 2011	18°C 2010	48%
Dec 13	31°C	22°C	37°C 1998	13°C 2010	49%
Dec 14	32°C	22°C	37°C 2018	10°C 2010	50%
Dec 15	32°C	22°C	39°C 2006	15°C 2010	50%
Dec 16	32°C	22°C	38°C 2006	17°C 2000	51%
Dec 17	32°C	22°C	39°C 1995	14°C 2003	51%
Dec 18	32°C	22°C	39°C 1995	16°C 2000	50%
Dec 19	32°C	22°C	37°C 2008	17°C 1998	50%
Dec 20	32°C	22°C	38°C 2011	18°C 1998	50%
Dec 21	32°C	23°C	40°C 2011	18°C 2020	51%
Dec 22	32°C	23°C	38°C 2011	17°C 2019	51%
Dec 23	32°C	23°C	38°C 2011	15°C 1998	52%
Dec 24	32°C	23°C	36°C 2007	15°C 2019	53%
Dec 25	32°C	23°C	37°C 1994	19°C 2002	54%
Dec 26	32°C	23°C	37°C 2012	19°C 2005	55%
Dec 27	32°C	23°C	38°C 2013	18°C 1991	54%
Dec 28	32°C	23°C	38°C 2011	19°C 1991	53%
Dec 29	32°C	23°C	39°C 2008	19°C 1993	51%
Dec 30	32°C	23°C	39°C 2008	16°C 1993	50%
Dec 31	32°C	23°C	39°C 2008	17°C 1993	49%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 5:39 AM, sunset 7:16 PM
December 31: sunrise 5:50 AM, sunset 7:33 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.