Varna sits on the central-northern Bulgarian coast and serves as the main access hub for a concentrated cluster of Black Sea dive sites. The six sites near Varna are boat-access only and cover a broad range of experience levels. Highlights include the WWII Romanian minelayer Regele Carol I, two Soviet-era submarine wrecks, a Tupolev aircraft sunk as an artificial reef, an ancient anchor field with scattered pottery, and a shallow rocky reef suitable for beginners. Visibility typically falls in the five-to-ten-metre range. Recorded species include loggerhead sea turtles, seahorses, common stingrays, scorpionfish, gorgonians, brittle stars, and giant barrel sponges.
Monthly water temperature across Varna's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water is cold from winter through early spring, reaching around eight degrees, then rising through spring to warm conditions in mid-to-late summer when temperatures peak in the low-to-mid twenties. Autumn sees a gradual decline back toward cooler water. The most comfortable diving conditions fall in the summer months, when visibility, while still variable, tends to be at its best.
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Water temperature around Varna ranges from about 7°C in February to 24°C in August, based on satellite sea-temperature data for its dive sites.
In the warm season (about 24°C) a 3mm full suit is comfortable in Varna; in the coldest months (about 7°C) step up to a drysuit.
Fin maps 6 sites in Varna (6 scuba diving sites).
Across Varna's dive sites, June, July, August and September are most often reported as the best months to visit.
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