Bruny Island sits in the Southern Ocean off southern Tasmania, and its waters reflect that exposure: cold year-round, productive, and rich in temperate marine life. Sites range from sheltered coves and seagrass beds to walls, pinnacles, kelp forests, and drift dives, covering a wide depth range suitable for beginners and advanced divers alike. The Bathurst Channel is a particular draw, its tannin-stained water creating near-overhead conditions along cold-water filter-feeder walls. Expect gorgonians, sea pens, sea whips, and bryozoans alongside pot-bellied seahorses, blue-throated wrasse, john dory, and occasional great white and draughtboard sharks.
Monthly water temperature across Bruny Island's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water peaks in late summer and cools to its coldest in late winter and early spring, when temperatures drop to around twelve degrees. A five-millimetre wetsuit with hood, gloves, and boots is the minimum for summer; a drysuit or thick wetsuit is advisable for the rest of the year.
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Claremont, Australia
Water temperature around Bruny Island ranges from about 12°C in September to 17°C in February, based on satellite sea-temperature data for its dive sites.
With water around 12–17°C, a 7mm or semi-dry suit works in Bruny Island year-round.
Fin maps 8 sites in Bruny Island (8 scuba diving sites).
Across Bruny Island's dive sites, January, February, March, April and December are most often reported as the best months to visit.
8 more sites to explore
