Açu Weather in December

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

Average highs run from 37°C on December 1 to 37°C on December 31, and lows from 24°C to 24°C. Normal precipitation for the month is 12 mm over about 3 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: 37°C
Average low: 24°C
Precipitation: 12 mm
Reanalysis high: 40°CDec 8, 2003
Reanalysis low: 21°CDec 8, 1994
Daylight: 12 h 25 min to 12 h 27 min
Cloud cover: 42%
Humidity: 57%
Dew point: 19°C
Wind: 22.7 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	37°C	24°C	39°C 2015	22°C 2006	5%
Dec 2	37°C	24°C	39°C 2004	22°C 1996	5%
Dec 3	37°C	24°C	39°C 2019	22°C 1994	6%
Dec 4	37°C	24°C	39°C 2019	22°C 1996	5%
Dec 5	37°C	24°C	39°C 1998	22°C 1992	5%
Dec 6	37°C	24°C	39°C 2017	22°C 1996	5%
Dec 7	37°C	24°C	38°C 2019	22°C 2008	5%
Dec 8	37°C	24°C	40°C 2003	21°C 1994	6%
Dec 9	37°C	24°C	39°C 2016	22°C 1997	6%
Dec 10	37°C	24°C	39°C 2015	22°C 1994	7%
Dec 11	37°C	24°C	39°C 2020	22°C 1996	7%
Dec 12	37°C	24°C	38°C 1998	22°C 1995	8%
Dec 13	37°C	24°C	39°C 2019	22°C 2005	8%
Dec 14	37°C	24°C	39°C 2019	22°C 1995	9%
Dec 15	37°C	24°C	39°C 2015	23°C 2011	10%
Dec 16	37°C	24°C	38°C 1993	23°C 2000	10%
Dec 17	37°C	24°C	39°C 2019	22°C 1993	10%
Dec 18	37°C	24°C	39°C 2019	22°C 2011	10%
Dec 19	37°C	24°C	39°C 2008	23°C 1998	9%
Dec 20	37°C	24°C	39°C 2005	21°C 2000	10%
Dec 21	37°C	24°C	39°C 2012	22°C 1991	11%
Dec 22	37°C	24°C	39°C 2019	22°C 1991	12%
Dec 23	37°C	24°C	38°C 2005	22°C 1991	13%
Dec 24	37°C	24°C	39°C 2019	22°C 1991	13%
Dec 25	37°C	24°C	38°C 2019	22°C 1992	13%
Dec 26	37°C	24°C	39°C 2019	23°C 2010	13%
Dec 27	37°C	24°C	39°C 2019	21°C 1992	15%
Dec 28	37°C	24°C	39°C 2008	22°C 2000	16%
Dec 29	37°C	24°C	38°C 2008	22°C 2020	17%
Dec 30	37°C	24°C	38°C 2018	22°C 1991	17%
Dec 31	37°C	24°C	39°C 2020	22°C 2010	18%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 5:04 AM, sunset 5:29 PM
December 31: sunrise 5:17 AM, sunset 5:44 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.