Jangseong is a city of approximately 42,100 people in Jeollanam-do, South Korea. Located in the Korea Standard Time zone at 35.3°N latitude.
Recent weather here gives a sense of typical conditions: in 2025, Jangseong recorded a mean annual temperature of 57°F, ranging from 12°F lows in February to 96°F highs in July, with about 56 inches of precipitation across the year.
View historical weather for Jangseong · More cities in Jeollanam-do