Seosaeng myeon, South Korea offers 1 beach perfect for sunbathing, surfing, swimming, and more. Seosaeng myeon is known for its proximity to the scenic Gyeongju National Park and the historic Bulguksa Temple. The best time to travel to Seosaeng-myeon, South Korea, is in late spring (May) when the average air temperature is around 18°C (64°F) and the water temperature is approximately 16°C (61°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!