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The climate of Comoros
The Union of the Comores, mostly simply described as The Comoros, is a state consisting of three islands situated east of Mozambique and north-west of Madagascar. Grande Comore, Mohéli and Anjouan have been an independent state since 1975. The fourth island which for a short time belonged to the country of the Comoros is Mayotte. One year after the independence the population of Mayotte chose for a revert as a part of France.
The Comoros have a tropical monsoon climate, in which the drier period occurs at the end of the local wintertime. Because locally the criteria of a tropical monsoon climate are not always met, there may be a question of a tropical rainforest climate (type Aw according to the Köppen climate system). The summer months are warm (26 to 31 degrees), damp and clammy. Thanks to the warm gulfstream the seawater around the Comoros is agreeably warm throughout the year.


Climate information of places and areas in Comoros
The climate information on this page is only brief. Specific information about weather and climate can be found on the climate pages per area or town. As for Comoros the following climate information is available:

Grande Comore

The total amount of precipitation registered on a yearly basis is somewhere between 2200 and nearly three-thousand millimeters. In the Comoros precipitation always falls in the form of rain. Most of the time there is a question of heavy showers lasting relatively short. In the wet season the showers may quickly come one after another, through which it seems to rain for a longer period on end. The period from the end of December up to and including April is by far the wettest period. Amounts of precipitation far over three-hundred millimeters are no exception during the summer months.

The temperature is reasonably constant throughout the year. That is a well-known fact in a region where a tropical climate prevails. On an average the temperatures are a little below those normally occurring in a tropical climate. There are two causes for that. First of all there is practically always a question of a cooling wind, second locally in the island there are places where it is cooler due to differences in height. As a rule close to the coast the temperatures are some degrees higher. In the Comoros the maximum temperature never exceeds 34 degrees centigrade. In the wintertime the temperature at night practically never drops below 14 degrees. On an average it is some degrees warmer.


Climate figures
Scattered over the Comoros you find different climate data and temperatures. The data in the table below go for the capital of Moroni and cannot be considered an average for the country. Visit the individual climate information pages for the climate data of other places in the Comoros.

temperature (°C)


temperature (°C)
hours of sunshine

average days with precipitation
per month
per month
temperature (°C)
January 27 21 7 18 29
February 27 21 7 16 29
March 27 20 7 17 29
April 27 20 8 13 29
May 26 19 9 7 28
June 25 18 9 5 27
July 24 17 9 5 26
August 24 16 9 5 25
September 25 17 10 4 26
October 26 18 10 6 26
November 27 19 9 9 27
December 27 20 8 15 28
= 0-5 mm ● = 6-30 mm ● = 31-60 mm ● = 61-100 mm ● = 101-200 mm ● = over 200 mm
= 0-0.2 inches ● = 0.2-1.2 inches ● = 1.2-2.4 inches ● = 2.5-4 inches ● = 4.1-8 inches ● = over 8 inches

More climate information
Climate figures come in handy, but do not offer a complete impression of the climate and the possible weather circumstances within a certain period. How big the chance is of wintry weather, (extreme) heat or hurricanes cannot often be found in figures. Therefore we monthly offer useful extra climate information. The information below goes for the capital of Moroni. For information about particular areas and places in the Comores please visit the specific climate pages of those places and/or areas.

chance of
(very) hot


chance of
(very) cool
chance of

chance of
chance of
sunny days


click here for the explanation of the symbols


The information at this site was carefully composed from climate data collected by meteorological services, meteorological offices, climate experts and other sources. “More climate info” is based on statistics, climate data and personal experience. No rights can be derived from this site. Weather has no memory and gives no guaranties. Nothing is as changeable and unpredictable as the weather. The authors of this site feel in no way responsible for any damages caused by misinterpretation or other circumstances that may influence your holiday or trip to a certain destination. We provide information, it’s up to the reader to use it to it’s benefit.


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