Lassi, Greece offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Lassi is known for its beautiful beaches like Makris Gialos and Platis Gialos, as well as its proximity to the capital city of Argostoli. The best time to travel to Lassi, Greece, is from May to September, with average air temperatures around 25-30°C (77-86°F) and water temperatures around 22-26°C (72-79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!