Marietta, Mississippi is a charming town located in Prentiss County, in the northeastern part of the state. The climate in Marietta is generally mild, with hot and humid summers and cool winters. Average temperatures range from the mid-80s °F (30s °C) in the summer to the mid-40s °F (7°C) in the winter.

Hydrologically, Marietta is surrounded by several bodies of water. The town lies within the Tombigbee River watershed, with nearby creeks and streams providing recreational opportunities for fishing, boating, and swimming. The nearby Pickwick Lake, located on the Tennessee River, is a popular destination for outdoor enthusiasts, offering excellent fishing and water sports activities.

Outdoor recreation opportunities in Marietta are abundant. The area is home to numerous parks and nature preserves, providing opportunities for hiking, camping, and wildlife observation. The Tishomingo State Park, located just a short drive away, offers picturesque landscapes, rugged trails, and stunning waterfalls for visitors to explore. Additionally, the Natchez Trace Parkway, a scenic road that stretches through Mississippi, Tennessee, and Alabama, is easily accessible from Marietta, offering beautiful drives and opportunities for biking and hiking.

In conclusion, Marietta, Mississippi boasts a mild climate, diverse hydrology constituents, and a plethora of outdoor recreation opportunities, making it an ideal destination for nature lovers and adventure seekers.