Charleston, Mississippi has a humid subtropical climate, with hot summers and mild winters. The area is prone to flooding due to its location near the Mississippi River and its tributaries. The hydrology constituents in the area include the Tallahatchie River, which runs through the town, and several creeks and wetlands. Outdoor recreation opportunities in Charleston include fishing and hunting in the nearby Delta National Forest, as well as hiking and camping in the forest's many trails and campsites. The area is also known for its birdwatching opportunities, with several species of waterfowl and migratory birds passing through the region.