Gangneung si, South Korea offers 8 beaches perfect for sunbathing, surfing, swimming, and more. Gangneung si is known for its beautiful beaches like Gyeongpo Beach, the scenic Jeongdongjin Sunrise Park, and the historic Ojukheon House. The best time to travel to Gangneung-si, South Korea, is from late spring to early fall (May to September), with average air temperatures ranging from 15°C to 25°C and water temperatures from 16°C to 24°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!