Climate averages 1991–2020

Mahajanga weather
in January.

A hot, very wet month: one of the coolest and the wettest of the year.

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

Average high 29.7°C Daytime mean, January

Average low 24.4°C Night-time mean, January

Rainfall 431 mm 28 days with ≥1 mm

Daylight 13 h Sunrise to sunset, per day

January is a hot month in Mahajanga: daytime highs average 29.7°C and nights cool to about 24.4°C. By daytime temperature it is one of the coolest months of the year.

Expect about 431 mm of rain on roughly 28 days, which makes January a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 57 min on an average January day.

The nearest other city in this atlas is Mamoudzou (347 km away). In January its highs average 28.0°C, 1.7°C cooler than Mahajanga, with 238 mm of rain.

Among the 12 cities listed in Madagascar, Mahajanga ranks 2nd of 12 for the warmest January highs and 12th of 12 for the driest January (rainfall, lowest first). The mean January high of those 12 cities is 27.1°C; Mahajanga is 2.6°C warmer than that mean.

From January to February, average highs stay level at 29.7°C, and monthly rainfall falls from 431 mm to 315 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

Mahajanga climate table

1991–2020

Monthly climate averages for Mahajanga, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January, selected	29.7°C24.4°C	24.4°C	431	28.4	12.913 h
February	29.7°C24.4°C	24.4°C	315	24.2	12.613 h
March	30.7°C24.6°C	24.6°C	197	21.0	12.212 h
April	31.9°C24.5°C	24.5°C	43	8.3	11.812 h
May	31.8°C23.3°C	23.3°C	6.4	1.1	11.411 h
June	30.6°C21.6°C	21.6°C	0.8	0.2	11.211 h
July	30.3°C20.7°C	20.7°C	1.2	0.2	11.311 h
August	31.3°C20.9°C	20.9°C	1.2	0.2	11.612 h
September	32.6°C21.9°C	21.9°C	2.8	0.6	12.012 h
October	33.6°C23.6°C	23.6°C	17	4.3	12.412 h
November	32.9°C24.5°C	24.5°C	80	15.0	12.813 h
December	31.2°C24.6°C	24.6°C	205	23.9	13.013 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 Mahajanga

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 Mahajanga) is explained once on the Mahajanga year overview and on the Sources, method and limits page.