Climate averages 1991–2020

Moroni weather
in January.

A hot, very wet month: the joint 4th 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 26.1°C Night-time mean, January

Rainfall 240 mm 23 days with ≥1 mm

Daylight 13 h Sunrise to sunset, per day

January is a hot month in Moroni: daytime highs average 29.6°C and nights cool to about 26.1°C. By daytime temperature it is the joint 4th warmest of the 12 months.

Expect about 240 mm of rain on roughly 23 days, which makes January a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 43 min on an average January day.

The nearest other city in this atlas is Mamoudzou (246 km away). In January its highs average 28.0°C, 1.6°C cooler than Moroni, with 238 mm of rain.

From January to February, average highs rise by 0.1°C to 29.6°C, and monthly rainfall falls from 240 mm to 213 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

Moroni climate table

1991–2020

Monthly climate averages for Moroni, 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°C26.1°C	26.1°C	240	22.8	12.713 h
February	29.6°C26.1°C	26.1°C	213	21.7	12.512 h
March	29.8°C26.1°C	26.1°C	199	25.8	12.212 h
April	29.6°C26.0°C	26.0°C	124	22.6	11.812 h
May	28.6°C25.3°C	25.3°C	63	17.1	11.612 h
June	27.2°C24.0°C	24.0°C	44	15.2	11.411 h
July	26.6°C23.1°C	23.1°C	40	15.2	11.512 h
August	27.0°C22.4°C	22.4°C	27	10.3	11.712 h
September	27.9°C22.8°C	22.8°C	20	7.4	12.012 h
October	29.0°C24.0°C	24.0°C	33	9.0	12.412 h
November	29.7°C25.2°C	25.2°C	69	13.2	12.613 h
December	30.0°C25.9°C	25.9°C	166	21.0	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 Moroni

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