Climate averages 1991–2020

Antsiranana weather
in January.

A hot, very wet month: the 6th warmest and the wettest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 29.6°C Daytime mean, January

Average low 24.0°C Night-time mean, January

Rainfall 244 mm 24 days with ≥1 mm

Daylight 13 h Sunrise to sunset, per day

January is a hot month in Antsiranana: daytime highs average 29.6°C and nights cool to about 24.0°C. By daytime temperature it is the 6th warmest of the 12 months.

Expect about 244 mm of rain on roughly 24 days, which makes January a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 45 min on an average January day.

The nearest other city in this atlas is Sambava (237 km away). In January its highs average 29.3°C, about as warm as Antsiranana, with 268 mm of rain.

Among the 12 cities listed in Madagascar, Antsiranana ranks 3rd of 12 for the warmest January highs and 3rd of 12 for the driest January (rainfall, lowest first). The mean January high of those 12 cities is 27.1°C; Antsiranana is 2.5°C warmer than that mean.

From January to February, average highs fall by 0.1°C to 29.4°C, and monthly rainfall falls from 244 mm to 222 mm.

The annual picture

January in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Antsiranana climate table

1991–2020

Monthly climate averages for Antsiranana, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January, selected	29.6°C24.0°C	24.0°C	244	24.4	12.813 h
February	29.4°C24.1°C	24.1°C	222	23.9	12.513 h
March	29.7°C24.2°C	24.2°C	151	19.2	12.212 h
April	29.9°C24.0°C	24.0°C	45	7.9	11.812 h
May	29.5°C23.1°C	23.1°C	12	1.9	11.612 h
June	28.3°C21.8°C	21.8°C	4.7	1.2	11.411 h
July	27.6°C20.9°C	20.9°C	5.5	1.3	11.511 h
August	27.8°C20.7°C	20.7°C	4.1	0.9	11.712 h
September	28.7°C21.0°C	21.0°C	2.6	0.7	12.012 h
October	29.9°C21.9°C	21.9°C	13	1.3	12.412 h
November	30.5°C23.0°C	23.0°C	31	4.2	12.713 h
December	30.4°C23.8°C	23.8°C	121	15.3	12.813 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

January in nearby cities

Distance from Antsiranana

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Antsiranana) is explained once on the Antsiranana year overview and on the Sources, method and limits page.