Arivonimamo Weather in December

NASA POWER reanalysis for the half-degree grid cell around Arivonimamo, 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 25°C on December 31, and lows from 16°C to 16°C. Normal precipitation for the month is 335 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: 26°C
Average low: 16°C
Precipitation: 335 mm
Reanalysis high: 31°CDec 8, 2015
Reanalysis low: 12°CDec 19, 1992
Daylight: 13 h 11 min to 13 h 16 min
Cloud cover: 73%
Humidity: 79%
Dew point: 16°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	27°C	16°C	31°C 1996	13°C 1992	73%
Dec 2	26°C	16°C	29°C 1993	13°C 1992	73%
Dec 3	26°C	16°C	29°C 1993	12°C 2007	74%
Dec 4	26°C	16°C	29°C 2019	13°C 2012	76%
Dec 5	26°C	16°C	30°C 2019	12°C 1992	77%
Dec 6	26°C	16°C	29°C 2015	12°C 1992	78%
Dec 7	26°C	16°C	30°C 2015	13°C 1992	78%
Dec 8	26°C	16°C	31°C 2015	13°C 1991	79%
Dec 9	26°C	16°C	29°C 2015	13°C 2016	80%
Dec 10	26°C	16°C	29°C 1993	13°C 1999	80%
Dec 11	26°C	16°C	30°C 2015	14°C 1994	81%
Dec 12	26°C	16°C	29°C 2001	13°C 1992	82%
Dec 13	26°C	16°C	29°C 2001	12°C 1992	83%
Dec 14	26°C	16°C	29°C 2001	13°C 2001	85%
Dec 15	26°C	16°C	29°C 2015	12°C 1992	86%
Dec 16	26°C	16°C	28°C 2020	13°C 1993	85%
Dec 17	26°C	16°C	30°C 2020	14°C 1997	85%
Dec 18	26°C	16°C	29°C 2020	13°C 1992	84%
Dec 19	26°C	16°C	28°C 2019	12°C 1992	83%
Dec 20	26°C	16°C	29°C 1999	13°C 2011	82%
Dec 21	26°C	16°C	29°C 1999	13°C 2011	82%
Dec 22	26°C	16°C	29°C 1999	13°C 1992	82%
Dec 23	26°C	16°C	30°C 2016	12°C 1992	82%
Dec 24	26°C	16°C	29°C 2016	13°C 2013	83%
Dec 25	26°C	16°C	29°C 2011	13°C 2009	83%
Dec 26	26°C	16°C	29°C 2020	13°C 1991	83%
Dec 27	26°C	16°C	29°C 2018	14°C 1999	83%
Dec 28	26°C	16°C	30°C 2016	14°C 1991	83%
Dec 29	25°C	16°C	30°C 2016	14°C 1991	83%
Dec 30	25°C	16°C	30°C 2016	14°C 1994	83%
Dec 31	25°C	16°C	29°C 2008	14°C 2013	84%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 5:05 AM, sunset 6:16 PM
December 31: sunrise 5:16 AM, sunset 6:32 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.