Country

Comoros

Explore historical and projected climate data, climate data by sector, impacts, key vulnerabilities and what adaptation measures are being taken. Explore the overview for a general context of how climate change is affecting Comoros.

Country Summary

This page presents high-level information for Comoros's climate zones and its seasonal cycle for mean temperature and precipitation for the latest climatology, 1991-2020. Climate zone classifications in the map below use observed, historical data (sourced from the Climate Research Unit [CRU]) and are derived by applying the Köppen-Geiger climate classification methodology. This classification divides climate into five primary climate groups, which are divided based on seasonal precipitation and temperature patterns. The five primary groups are A (tropical), B (dry), C (temperate), D (continental), and E (polar). All climates, except for those in the E group are assigned a seasonal precipitation sub-group (second letter). It is important to understand the different climate contexts that exist within a country as well as the surrounding region when analyzing current climates and projected change. Climate classifications are identified by hovering your mouse over the legend. A narrative overview of Comoros's country context and climate is provided following the visualizations.


Köppen-Geiger Climate Classification, 1991-2020
  • Af
  • Am
  • As/Aw
  • BWh
  • BWk
  • BSh
  • BSk
  • Csa
  • Csb
  • Csc
  • Cwa
  • Cwb
  • Cwc
  • Cfa
  • Cfb
  • Cfc
  • Dsa
  • Dsb
  • Dsc
  • Dsd
  • Dwa
  • Dwb
  • Dwc
  • Dwd
  • Dfa
  • Dfb
  • Dfc
  • Dfd
  • ET
  • EF
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The Union of Comoros is a small archipelago in the southwestern Indian Ocean nestled between the coast of East Africa and Madagascar in the Mozambique Channel. Comoros is composed of three islands: Grande Comore, Mohéli, and Anjouan, and is made up of diverse coastal and marine environments from low coasts to cliffs, mountains, and an active volcano. Agriculture, including fishing, hunting, and forestry, accounts for about 50% of GDP, employs a majority of the labor force, and provides most of the exports. Export income is heavily reliant on the three main crops of vanilla, cloves, and ylang ylang (perfume essence); and the Comoros' export earnings are easily disrupted by disasters such as fires and extreme weather. Poverty is widespread throughout the Comoros, with 40% of the population living below the poverty line.

The Comoros is densely populated, with approximately 465 inhabitants per km2, and more than half of the population (53%) of 869,595 (2020) people is under the age of 20. High population density places intense pressure on natural resources and the environment. Due to its location and topography Comoros is among the most climate vulnerable countries in the world, and 54.2% of the population live in at-risk areas.