Sallis, Mississippi is a small town located in Attala County. The area experiences a humid subtropical climate, characterized by hot and humid summers, and mild winters. Average high temperatures range from the mid-90s in summer to the mid-50s in winter, while average lows range from the mid-70s to the mid-30s, respectively. Sallis receives approximately 53 inches of rainfall annually, with May and December being the wettest months.

The hydrology constituents in Sallis include several small creeks and streams that flow through the area, contributing to the local ecosystem. These water sources support a diverse range of aquatic life and provide opportunities for activities such as fishing and canoeing.

Outdoor recreation opportunities in Sallis are abundant. The town is surrounded by natural beauty, with ample opportunities for hiking, camping, and bird-watching. Nearby areas such as the Natchez Trace Parkway offer scenic drives, biking trails, and historical sites to explore. Additionally, Sallis is conveniently located near several lakes, including Sardis Lake and Grenada Lake, which provide opportunities for boating, swimming, and other water sports. With its favorable climate and stunning natural surroundings, Sallis offers a variety of outdoor activities for residents and visitors to enjoy.