Manly, Iowa is a small town located in Worth County in the northern part of the state. The town experiences a humid continental climate, characterized by hot summers and cold winters. Average temperatures range from 20°F (-6°C) in winter to 80°F (27°C) in summer, with an average annual precipitation of around 34 inches (86 cm).

Hydrologically, Manly is situated near the Upper Iowa River, which is an important water body in the region. This river provides opportunities for various outdoor activities such as fishing, boating, and canoeing. Additionally, residents and visitors can explore nearby parks and nature reserves, such as the Rice Lake State Park and the Lime Creek Nature Center, which offer hiking trails, bird-watching, and wildlife observation.

Manly is also close to the Cedar River, which offers additional recreational opportunities such as kayaking and paddleboarding. The area is known for its scenic beauty, with rolling hills, forests, and waterways providing a picturesque backdrop for outdoor enthusiasts. With its diverse range of outdoor activities, Manly, Iowa is a great destination for nature lovers and those seeking recreational opportunities in a peaceful, natural setting.