Jung Gu, South Korea offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Jung Gu, Gyeonggi do, South Korea, is known for the Incheon Chinatown and the Songwol-dong Fairy Tale Village. The best time to travel to Jung Gu, South Korea, is in late spring (May) when the average air temperature is around 18°C (64°F) and the water temperature is approximately 15°C (59°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!