Aru Weather in December

NASA POWER reanalysis for the half-degree grid cell around Aru, 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 34°C on December 31, and lows from 20°C to 20°C. Normal precipitation for the month is 50 mm over about 6 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: 33°C
Average low: 20°C
Precipitation: 50 mm
Reanalysis high: 39°CDec 21, 2005
Reanalysis low: 14°CDec 16, 2015
Daylight: 11 h 58 min to 11 h 57 min
Cloud cover: 50%
Humidity: 57%
Dew point: 16°C
Wind: 10.1 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	20°C	36°C 2008	18°C 2011	36%
Dec 2	31°C	20°C	37°C 2007	16°C 2011	36%
Dec 3	31°C	20°C	37°C 2007	17°C 2013	36%
Dec 4	32°C	20°C	36°C 2007	16°C 1998	36%
Dec 5	32°C	20°C	37°C 2007	16°C 2014	36%
Dec 6	32°C	20°C	37°C 2007	16°C 2014	34%
Dec 7	32°C	20°C	36°C 2008	19°C 2008	33%
Dec 8	32°C	20°C	37°C 2008	18°C 2017	33%
Dec 9	32°C	20°C	36°C 2005	18°C 2013	31%
Dec 10	32°C	20°C	37°C 2005	17°C 1991	30%
Dec 11	32°C	20°C	37°C 2005	17°C 1994	29%
Dec 12	32°C	20°C	37°C 2005	16°C 2017	27%
Dec 13	32°C	20°C	38°C 2005	15°C 2017	25%
Dec 14	32°C	20°C	38°C 2005	16°C 2015	24%
Dec 15	33°C	20°C	38°C 2005	14°C 2015	23%
Dec 16	33°C	20°C	38°C 2005	14°C 2015	22%
Dec 17	33°C	20°C	38°C 2005	16°C 2020	20%
Dec 18	33°C	20°C	39°C 2005	16°C 2013	19%
Dec 19	33°C	20°C	39°C 2005	17°C 2020	17%
Dec 20	33°C	20°C	39°C 2005	17°C 2017	16%
Dec 21	33°C	20°C	39°C 2005	17°C 2017	17%
Dec 22	33°C	20°C	39°C 2005	16°C 2017	17%
Dec 23	33°C	20°C	39°C 2005	17°C 2020	16%
Dec 24	33°C	20°C	38°C 2005	17°C 2014	16%
Dec 25	33°C	20°C	38°C 2005	16°C 2002	15%
Dec 26	34°C	20°C	37°C 2018	16°C 2003	15%
Dec 27	34°C	20°C	37°C 2005	16°C 2002	14%
Dec 28	34°C	20°C	38°C 2005	16°C 2002	14%
Dec 29	34°C	20°C	38°C 2005	17°C 2003	13%
Dec 30	34°C	20°C	38°C 2005	15°C 2003	12%
Dec 31	34°C	20°C	38°C 2005	16°C 1991	13%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+2).

December 1: sunrise 5:47 AM, sunset 5:45 PM
December 31: sunrise 6:01 AM, sunset 5:58 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.