Thasos diving is defined by a strong mix of walls, wrecks, reefs and caves, with the majority of sites suited to beginners. Boat access is standard across the island. The signature species are the Common Octopus and European Common Cuttlefish, both very commonly encountered, alongside the Painted Comber and occasional Loggerhead Sea Turtle and Blue Shark. Sites like Fourni combine wreck, wall and cave in a single dive, while Pefkari House Reef offers rare shore-access flexibility.
Monthly water temperature across Thasos's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water temperatures climb through late spring and peak in September, making June through September the warmest and most popular window for diving. The cooler months from late autumn through early spring bring noticeably colder water, suiting divers comfortable in heavier exposure protection. June and September stand out as particularly well-regarded months, combining warm conditions with good overall diving quality.
4 operators
Greece
9 more sites to explore
Water temperature around Thasos ranges from about 13°C in March to 22°C in September, based on satellite sea-temperature data for its dive sites.
In the warm season (about 22°C) a 3mm full suit is comfortable in Thasos; in the coldest months (about 13°C) step up to a 7mm or semi-dry suit.
Fin maps 18 sites in Thasos (15 scuba diving sites and 5 snorkelling spots, with some suited to both).
Across Thasos's dive sites, June, July, August and September are most often reported as the best months to visit.
The Common Octopus and European Common Cuttlefish are very frequently encountered across Thasos dive sites. The Painted Comber is similarly widespread, and the Tompot Blenny and Hermit Crab turn up reliably on reef and wall dives. Loggerhead Sea Turtle and Blue Shark have both been observed here, though on a more occasional basis.
The majority of sites in Thasos are rated for beginner level, including walls such as Kinira Island and Gramvousa Island South, and the reef-wall-cave combination at San Antonio. Intermediate sites like Fourni and Mourtzeflos Cape are available for divers seeking greater depth or more complex topography. The overall site mix means Thasos works well as a destination for mixed-ability groups.
Boat entry is the standard mode of access for the vast majority of Thasos dive sites. The exception is Pefkari House Reef, which can be reached by both boat and shore entry, making it a convenient option when conditions or logistics favour staying close to shore. Divers should expect to join a boat for most excursions.
Thasos has a varied site portfolio covering walls, reefs, wrecks and caves, often combined within a single dive. Pirgo pairs a wall with a wreck, while Fourni brings together wreck, cave and wall in one boat dive. For those who prefer reef diving, Fidonisi and Mourtzeflos Cape offer distinct reef profiles at contrasting depth ranges.
