Smithdale, Mississippi is a small rural town located in Amite County, southwest of the state. The climate in Smithdale is classified as humid subtropical, characterized by hot and humid summers, mild winters, and ample rainfall throughout the year. Summers in Smithdale can be quite hot, with temperatures often reaching the 90s°F (30s°C), while winter temperatures typically range from the 40s°F (5-10°C).

Hydrology in Smithdale is largely influenced by the surrounding Homochitto River. The river serves as a vital water source for the town and supports various aquatic species. Additionally, Smithdale is surrounded by several creeks and streams that contribute to the hydrological system of the area.

Outdoor enthusiasts visiting Smithdale can explore numerous recreational opportunities. The Homochitto National Forest, located nearby, offers opportunities for hiking, camping, fishing, and hunting. The forest is home to diverse wildlife, including deer, turkey, and various bird species, making it a popular destination for nature lovers. The Homochitto River provides opportunities for boating, kayaking, and fishing, allowing visitors to enjoy the serene beauty of the waterways. With its favorable climate and abundant natural resources, Smithdale, Mississippi, offers a range of outdoor activities for residents and visitors alike.