Antsiranana Weather in December

NASA POWER reanalysis for the half-degree grid cell around Antsiranana, 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 30°C on December 31, and lows from 24°C to 24°C. Normal precipitation for the month is 149 mm over about 22 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: 24°C
Precipitation: 149 mm
Reanalysis high: 34°CDec 23, 2014
Reanalysis low: 21°CDec 1, 1999
Daylight: 12 h 48 min to 12 h 50 min
Cloud cover: 59%
Humidity: 77%
Dew point: 22°C
Wind: 17.3 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	24°C	33°C 2017	21°C 1999	49%
Dec 2	31°C	24°C	33°C 2013	21°C 1996	50%
Dec 3	31°C	24°C	33°C 2014	22°C 1992	51%
Dec 4	31°C	24°C	33°C 2014	22°C 1992	52%
Dec 5	31°C	24°C	34°C 2014	22°C 2003	55%
Dec 6	31°C	24°C	34°C 2014	21°C 1999	57%
Dec 7	31°C	24°C	33°C 2015	23°C 2006	60%
Dec 8	31°C	24°C	33°C 2016	22°C 2003	62%
Dec 9	31°C	24°C	33°C 2015	23°C 1991	64%
Dec 10	31°C	24°C	33°C 1996	22°C 1993	66%
Dec 11	31°C	24°C	33°C 1996	22°C 1993	68%
Dec 12	31°C	24°C	33°C 2012	23°C 1998	68%
Dec 13	31°C	24°C	34°C 2012	23°C 1992	68%
Dec 14	31°C	24°C	33°C 2019	23°C 1998	70%
Dec 15	31°C	24°C	33°C 2000	22°C 2007	71%
Dec 16	31°C	24°C	33°C 2018	22°C 1993	72%
Dec 17	30°C	24°C	34°C 2014	22°C 1993	73%
Dec 18	31°C	24°C	33°C 2014	23°C 1992	74%
Dec 19	30°C	24°C	34°C 2013	22°C 1992	74%
Dec 20	30°C	24°C	33°C 2014	23°C 1991	74%
Dec 21	30°C	24°C	33°C 1993	23°C 1991	75%
Dec 22	30°C	24°C	34°C 2001	23°C 1992	76%
Dec 23	30°C	24°C	34°C 2014	23°C 1999	77%
Dec 24	30°C	24°C	34°C 2014	23°C 1999	78%
Dec 25	30°C	24°C	33°C 2014	23°C 1992	79%
Dec 26	30°C	24°C	33°C 2012	23°C 1999	80%
Dec 27	30°C	24°C	33°C 2012	22°C 1999	82%
Dec 28	30°C	24°C	33°C 1999	23°C 1994	83%
Dec 29	30°C	24°C	33°C 1999	23°C 2007	84%
Dec 30	30°C	24°C	32°C 2014	23°C 2010	86%
Dec 31	30°C	24°C	33°C 2016	23°C 2016	87%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 5:08 AM, sunset 5:56 PM
December 31: sunrise 5:21 AM, sunset 6:11 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.