Climate averages 1991–2020

Mamoudzou weather
in December.

A warm, wet month: the 5th warmest and the 9th driest of the year.

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

Average high 27.9°C Daytime mean, December
Average low 25.9°C Night-time mean, December
Rainfall 109 mm 17 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Mamoudzou · average highYear overview

December is a warm month in Mamoudzou: daytime highs average 27.9°C and nights cool to about 25.9°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 109 mm of rain on roughly 17 days, which makes December a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 52 min on an average December day.

The nearest other city in this atlas is Moroni (246 km away). In December its highs average 30.0°C, 2.0°C warmer than Mamoudzou, with 166 mm of rain.

From December to January, average highs stay level at 28.0°C, and monthly rainfall rises from 109 mm to 238 mm.

The annual picture

December in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 20253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 2500

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

Every month, side by side

Mamoudzou climate table

1991–2020
Monthly climate averages for Mamoudzou, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 28.0°C26.0°C26.0°C23821.712.813 h
February 28.0°C26.0°C26.0°C19719.912.513 h
March 28.2°C26.2°C26.2°C16920.012.212 h
April 28.3°C26.3°C26.3°C6913.011.812 h
May 27.6°C25.8°C25.8°C215.811.512 h
June 26.4°C24.7°C24.7°C122.911.411 h
July 25.6°C23.8°C23.8°C102.511.411 h
August 25.6°C23.2°C23.2°C9.62.111.712 h
September 26.1°C23.6°C23.6°C123.612.012 h
October 26.9°C24.5°C24.5°C205.412.412 h
November 27.5°C25.4°C25.4°C409.012.713 h
December, selected 27.9°C25.9°C25.9°C10916.512.913 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

December in nearby cities

Distance from Mamoudzou

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