Forster sits on the Mid North Coast of New South Wales, where the South Pacific Ocean delivers a varied diving landscape ranging from shallow reef and shore entries to deep open-ocean wrecks. The region's signature appeal is its spread of site types: reef pinnacles, caverns, walls, and two significant shipwrecks, the SS Satara and the nineteenth-century passenger steamer SS Catterthun, the latter a technical dive requiring mandatory decompression. The East Australian Current runs through the area and can create strong currents, particularly at exposed sites such as Edith Breakers and The Cavern at Seal Rocks. Water temperatures dip to their coolest in late winter and early spring, warming through summer, and the species list includes ornate wobbegong, spotted eagle ray, bronze whaler shark, green sea turtle, and Queensland grouper.














Monthly water temperature across Forster's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water temperatures cool noticeably through winter and reach their lowest in late winter and early spring, making a wetsuit essential year-round. Summer brings warmer water and generally calmer surface conditions, which suits the longer boat runs out to the offshore wrecks.




Water temperature around Forster ranges from about 19°C in August to 23°C in March, based on satellite sea-temperature data for its dive sites.
In the warm season (about 23°C) a 3mm full suit is comfortable in Forster; in the coldest months (about 19°C) step up to a 5mm suit.
Fin maps 9 sites in Forster (7 scuba diving sites and 5 snorkelling spots, with some suited to both).
4 more sites to explore