Korsakov, Russia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Korsakov is known for its scenic coastal views and access to nearby beaches on Sakhalin Island. The best time to travel to Korsakov, Russia, is during the summer months of July and August, when the average air temperature is around 18-20°C (64-68°F) and the average sea temperature is approximately 16-18°C (61-64°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!