The Comoros (officially the Union of the Comoros) is one of Africa's smallest and least-touristed nations — an archipelago of three main inhabited islands (Grande Comore/Ngazidja, Anjouan/Nzwani, Mohéli/Mwali) plus French-controlled Mayotte (Maore, claimed by Comoros but governed by France) sitting in the Mozambique Channel between Madagascar and East Africa. The country totals 1,861 km² with population of 870,000. The famous Comoros produces 80% of the world's ylang-ylang, the perfume industry's most important essential oil ingredient — earning the famous nickname "perfume islands." The country was a French colony from 1841 to 1975, when three islands (Grande Comore, Anjouan, Mohéli) declared independence while Mayotte voted to remain French. The famous Comoros has experienced 20+ coups and attempted coups since independence — one of Africa's most politically turbulent histories. Despite extraordinary biodiversity (over 800 plant species, the famous coelacanth fish "discovered" in 1938 in Comoros waters after being considered extinct for 65 million years, and the famous Livingstone's fruit bat — the largest bat in the world endemic to Mohéli), the Comoros receive fewer than 30,000 international tourists per year. Tourism infrastructure is genuinely limited.
Major destinations include Grande Comore / Ngazidja (the main island with capital Moroni — population 60,000 with the famous Friday Mosque from 1427 — one of East Africa's oldest mosques, the famous Old Friday Mosque, the famous Volo Volo market, and as the famous gateway to Mount Karthala), Mount Karthala (the famous 2,361 m active volcano on Grande Comore — one of the world's largest active volcanoes by volume with a crater 3 km wide and 1 km deep, last erupted in 2007 with significant ash and lava activity, climbable as a 2-3 day expedition from Moroni), Anjouan / Nzwani (the famous "perfume island" with dramatic mountain landscapes, the famous Mutsamudu — the country's most picturesque town with old colonial buildings, the famous Citadel of Mutsamudu, the famous ylang-ylang plantations and distilleries — the famous "perfume of the world" with Anjouan producing the famous "Comoros ylang-ylang" considered the world's finest, the famous Lac Dziani Boundouni crater lake, and the famous Sultan's Palace ruins), Mohéli / Mwali (the smallest and least developed inhabited island, with the famous Mohéli Marine Park — the country's only national park established 2001, the famous green sea turtle and hawksbill nesting at Itsamia Beach — one of the western Indian Ocean's most important nesting sites, the famous humpback whale calving grounds, and the famous Livingstone's fruit bats), the famous Comoros Marine Park (Mohéli's protected coastal area with extensive coral reefs and the famous coelacanth fish — the famous "living fossil" that's the world's most reliable place to potentially spot a coelacanth, though never guaranteed since they live at 100+ m depths). Climate is tropical with two distinct seasons.
Quick verdict
Best overall: May-October (dry, cool season).
Best for Mount Karthala summit climb (2-3 days): June-September.
Best for Mohéli whale watching and turtle nesting: July-October (humpback whales); year-round for turtles.
Best for diving (visibility, coelacanth chance): June-September.
Best for budget travelers: February-April (cyclone-risk months, lower prices).
Best for ylang-ylang harvest: November-February.
Avoid if you can: January-March peak cyclone risk; July if Saint Anthony of Padua festival accommodation matters.
Dry/cool season (May-October)
The country's best window. Daytime 24-28 °C with lower humidity than typical equatorial destinations; southeast trade winds reliable; sea visibility excellent. Mount Karthala summit climbs operate fully — the 2-3 day ascent from Moroni passes through volcanic landscape culminating at the 2,361 m crater rim with one of Africa's most spectacular volcanic views.
Mohéli Marine Park (the country's only national park, established 2001) hits its peak. Humpback whales arrive in July-October to give birth in the warm shallow waters around Mohéli. Green and hawksbill turtles nest year-round on Itsamia Beach with peak nesting July-September and hatching October-November. The coelacanth — a "living fossil" fish thought extinct until rediscovered in Comoros waters in 1938 — is occasionally spotted by divers at depths beyond 100 m; the country is the world's most reliable place to encounter one (though never guaranteed).
The capital Moroni's atmospheric old medina, the famous Friday Mosque (built 1427), and the sultanate ruins on Anjouan and Mohéli at peak photogenic conditions.
Wet/cyclone season (November-April)
Daytime 27-31 °C with high humidity and heavy afternoon rains. The country sits in the southwestern Indian Ocean cyclone belt — Cyclone Kenneth (2019) caused significant damage. Tropical storms and cyclones can strike December through March. Some smaller hotels close; inter-island ferries (which provide most transport between the islands) become unreliable due to rough seas. The ylang-ylang harvest peaks November-February — distilleries on Anjouan operate continuously and visitors can witness the steam distillation that produces 80% of global supply.
Regional variations
Grande Comore (Ngazidja, main island with capital Moroni and Mount Karthala): Best May-October.
Anjouan (Nzwani, the "perfume island," dramatic mountains): Best June-October. Ylang-ylang harvest November-February.
Mohéli (Mwali, smallest and least developed): Best July-October for whales and turtles.
Mayotte (French Indian Ocean, separate political status): Has separate French entry requirements (not part of Comorian visa).
Festivals & cultural events
Eid al-Fitr (varies, lunar calendar — end of Ramadan): Country's biggest Muslim religious holiday; many businesses close.
Eid al-Adha (varies, lunar calendar): Major Muslim religious celebration.
Ramadan (varies): The famous month-long fast affects daytime operations across the country; many restaurants close during daylight hours.
Mawlid an-Nabi (Prophet's Birthday, varies): Major Islamic celebration.
Independence Day (July 6): Commemorates 1975 independence from France with citywide parades in Moroni.
Saint Anthony of Padua Festival (mid-June): Small but distinctive Christian-Comorian festival on Mayotte.
Mwaha (traditional Comorian wedding season): July-September. Comorian weddings are extraordinary multi-day community events — the famous "Grand Mariage" tradition (Anda or Ada — the famous expensive marriage celebrations that establish a man's traditional rank within Comorian society — costing the equivalent of years of household income, with extensive feasting, distinctive Bantu-Arab-Persian fusion music, and elaborate gift exchanges); outsiders are sometimes welcomed.
Ylang-Ylang Festival (varies, Anjouan): Celebrates harvest season.
Comoros National Day (December 23): Day of the Republic celebrations.
Day of Comorian Republic (May 14): Commemorates 1978 establishment of the Federal Islamic Republic.
Cultural and practical notes
The Comoros is officially Sunni Muslim (98% of population) — modest dress essential in villages (shoulders and knees covered, women's hair often respectfully covered for mosque visits). Alcohol is restricted but available at international hotels and some restaurants. Three official languages — Comorian (Shikomori — closely related to Swahili), Arabic, and French; English very limited. The Comorian franc (KMF) is the currency, pegged to the euro at 491.97 KMF per EUR. Tipping not customary in basic establishments but appreciated. Visa-on-arrival possible for most Western nationalities ($30 USD fee). Cash dominates; cards rarely accepted outside top-end hotels. The famous Comorian cuisine includes "langouste a la vanille" (lobster with vanilla — combining the country's lobster and Indian Ocean vanilla traditions), "pilao" (the famous Comorian rice dish), grilled fish, and the famous "tea with ginger and cardamom" (Shahi) — distinctive Arab-influenced beverage tradition.
Practical considerations
Tourism infrastructure is genuinely limited. Prince Said Ibrahim International Airport (HAH) near Moroni on Grande Comore is the main entry — limited flights from East Africa (Kenya Airways, Ethiopian Airlines), the Middle East, and Mayotte. Most travel requires advance arrangement through specialist operators (Comoros Sea & Sun, AB Aviation). Inter-island travel is by AB Aviation light aircraft (15-20 minute flights between islands) or slow ferries (4-6 hour crossings, frequently delayed by sea conditions). Hotels are mostly small family-run guesthouses; the famous international Le Galawa Beach Hotel closed years ago. The famous Itsandra Beach Hotel and Retaj Maoré Resort are among the few international-standard properties. Budget USD 1,500-3,000 per person for a meaningful week given limited infrastructure and elevated costs.
Traveler-type advice
Adventure travelers: June-September for Mount Karthala climb. The crater rim view is one of Africa's most underrated experiences.
Wildlife travelers: July-October for Mohéli's whales, turtles, and lemurs.
Divers: June-September for visibility. Coelacanth seekers should be prepared for deep dives without guarantees.
Cultural travelers: Year-round for medina walking; July for Independence Day and traditional weddings.
Off-the-beaten-path travelers: Year-round (avoiding cyclone peaks). The Comoros may be the least-touristed Indian Ocean destination.
Perfume industry travelers: November-February for ylang-ylang harvest on Anjouan.
Bottom line
The Comoros reward May-October visits decisively for prime weather, volcano climbing, and marine wildlife. The country offers one of Africa's most authentic and unspoiled island experiences — but requires patience for limited infrastructure and ferry schedules.