Sierra Leone's diving takes place in warm ocean water that stays broadly comfortable year-round, dipping slightly in February, March, and October. The sites on record include colonial and Spanish-era wrecks, a reef, and the Cape Sierra Leone Lighthouse, all reached by boat and sitting at shallow depths suited to beginners and intermediates. Currents can be strong and conditions shift quickly, so local guidance matters. The species list is striking: Atlantic Goliath Grouper, Smalltooth Sawfish, Lemon Shark, Nurse Shark, Green Sea Turtle, Butterfly Ray, and Torpedo Ray have all been recorded here.
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Monthly water temperature across Sierra Leone's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water temperature sits in the upper-twenties for most of the year, dropping to the mid-twenties in February, March, and October, so a thin wetsuit covers most conditions. Currents are a consistent factor at these sites and can shift rapidly, making local knowledge essential regardless of experience level.
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Sierra Leone
Water temperature around Sierra Leone ranges from about 26°C in February to 29°C in June, based on satellite sea-temperature data for its dive sites.
In the warm season (about 29°C) a rash guard or 3mm shorty is comfortable in Sierra Leone; in the coldest months (about 26°C) step up to a 3mm full suit.
Fin maps 4 sites in Sierra Leone (4 scuba diving sites).
