Sestroretsk, Russia offers 11 beaches perfect for sunbathing, surfing, swimming, and more. Sestroretsk is known for its Sestroretsk Kurort, a historic health resort and spa destination. The best time to travel to Sestroretsk, Russia, is during the summer months of June to August, when the average air temperature is around 18-22°C (64-72°F) and the water temperature is approximately 16-20°C (61-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!