Lastovo's underwater character is defined by an exceptional density of reef, wall, and cave topography, complemented by a notable wreck collection. Boat access dominates, reflecting the island's exposed, open-water setting. The site mix spans shallow snorkelling ground to serious deep walls, with the remote outposts of Susac and Palagruza adding offshore adventure. Marine life runs to the prolific: Turkish Wrasse, Mediterranean Cardinalfish, and Painted Comber are ever-present, while Indian Lionfish, Mediterranean Moray, and occasional Blue Shark reward attentive divers.
Monthly water temperature across Lastovo's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water temperatures climb gradually from spring into autumn, peaking in October and November, making the late season particularly pleasant for longer dives. Summer months see the highest diver activity and the warmest surface conditions, though visibility remains strong across most of the year. Spring and autumn offer quieter conditions on the water and are well suited to exploring the deeper walls and wreck sites.
8 operators
32 more sites to explore
Water temperature around Lastovo ranges from about 14°C in February to 20°C in November, based on satellite sea-temperature data for its dive sites.
In the warm season (about 20°C) a 5mm suit is comfortable in Lastovo; in the coldest months (about 14°C) step up to a 7mm or semi-dry suit.
Fin maps 44 sites in Lastovo (40 scuba diving sites and 10 snorkelling spots, with some suited to both).
Across Lastovo's dive sites, May, June, July, August and September are most often reported as the best months to visit.
Turkish Wrasse and Mediterranean Cardinalfish are present across virtually every site, with Painted Comber and Two-banded Seabream also very common. Signature encounters include the Indian Lionfish, Mediterranean Moray tucked into cave recesses, and occasional Blue Shark in open water off the more exposed sites. Kingfish, Castagnole, Striped Red Mullet, and Conger Eel round out a truly varied fish list.
Most sites in Lastovo are pitched at intermediate level, reflecting the boat-access nature of the area and the depth range of many reefs and walls. That said, sites such as Ankovica and Drasan plic are listed as beginner-friendly, offering structured entry points for less experienced divers. Those new to diving would benefit from going out with one of the local operators, who can match you to appropriate sites.
The great majority of dive sites are boat-access only, which reflects the island's open-water geography and the offshore position of highlights such as Susac and Palagruza. One exception is Za Planiku, a wreck site reachable from shore. Several operators based in the area run regular boat trips, covering the full range of reef, wall, cave, and wreck sites.
Susac and Palagruza are offshore islands that add a true expedition feel, typically reached on longer boat trips. Both offer a broader mix of topography, including walls, caves, reefs, and drop-offs, and the greater exposure tends to bring more open-water species into view. Sites closer to Lastovo itself are more sheltered and logistically simpler, covering the same core site types but in calmer conditions.
