Comoros in October: Weather, Crowds & What to Expect

Grande Comore (Ngazidja) - Moroni & coastal lowlands

October is a transitional month: humidity begins to creep back up and occasional squalls arrive late in the month, but most days are still warm and pleasurable for beach time. Visitor numbers remain low compared with the European summer, which helps if you want quiet guesthouses near the coast. Keep an eye on forecasts toward the end of October; if the Intertropical Convergence Zone shifts north early, the rains can return sooner.

Mount Karthala & central highlands (Grande Comore interior)

October is the last month of the reliably dry window: warm sunshine by day but brisk winds can still whip across open ridges. By month’s end expect the first hints of the approaching wet season as cloud bands thicken more often. Plan multi-day hikes now if Karthala is on your list, but confirm trail conditions since early rains can begin to make routes greasy.

Anjouan (Nzwani) - Mutsamudu, spice plantations & steep coasts

October is a transitional month when humidity slowly increases and occasional showers begin to return late in the month; most days remain good for beach and walking activities. Boat services are still generally dependable, though start to become patchier toward month’s end. If you’re staying long-term, this is a good shoulder month to catch local rhythms before the wet season slows travel.

Mohéli (Mwali) & outer islets - marine park, turtles and quiet beaches

October is transitional: humidity rises gradually and short showers reappear, but many days remain ideal for snorkeling and guided marine tours. Shorelines may collect debris after seasonal currents shift, so some beaches look wild rather than manicured. If visiting in late October, check boat schedules and prepare for occasional short rain bands that can disrupt morning sea trips.