The Comoros archipelago sits in the northern Mozambique Channel in the Indian Ocean, and its small number of dive sites spans reef, wreck, and drift diving. All sites are accessed by boat and are rated for intermediate divers. The Masiwa Shipwreck descends to around thirty-five metres and requires wreck and advanced credentials, while the reef at Coral Garden and the drift site simply called Drifting offer shallower profiles with visibility that can reach forty metres. Water temperatures are warmest from January to April and drop slightly through the dry-season months of June to September, which also bring calmer seas and the best conditions overall. Recorded species range from whale sharks and blacktip reef sharks to harlequin shrimp and hairy frogfish, reflecting the variety the Mozambique Channel supports.
Monthly water temperature across Comoros's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water temperature peaks in the high twenties to thirty degrees Celsius between January and April, then eases into the mid-twenties through the dry season from June to September. The dry season brings calmer surface conditions and the clearest visibility, making it the preferred window for visiting divers. A light wetsuit is sufficient year-round, though a slightly thicker layer suits the cooler mid-year months.
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Comoros
Water temperature around Comoros ranges from about 26°C in July to 30°C in February, based on satellite sea-temperature data for its dive sites.
In the warm season (about 30°C) a rash guard or 3mm shorty is comfortable in Comoros; in the coldest months (about 26°C) step up to a 3mm full suit.
Fin maps 3 sites in Comoros (3 scuba diving sites).
Across Comoros's dive sites, May, June, July, August, September and October are most often reported as the best months to visit.
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