Leros, Greece offers 1 beach perfect for sunbathing, surfing, swimming, and more. Leros is known for the Castle of Panteli, the War Museum Tunnel, and the picturesque village of Agia Marina. The best time to travel to Leros, Greece, is from May to September, when the average air temperature is around 25-30°C (77-86°F) and the water temperature is approximately 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!