Indianapolis, located in the state of Indiana, experiences a humid subtropical climate. Summers are hot and humid, with average temperatures ranging from 70°F to 86°F (21°C to 30°C). Winters are cold, with temperatures ranging between 20°F and 40°F (-6°C and 4°C). Rainfall is evenly distributed throughout the year, with June being the wettest month. Snowfall is common during winter months, with an average of 25 inches (64 cm) per year.

The city is situated in the White River watershed, and the main hydrological constituent is the White River. This river offers opportunities for outdoor recreation such as kayaking, canoeing, and fishing. Additionally, Indianapolis has multiple parks and green spaces, including Eagle Creek Park, which is one of the nation's largest municipal parks. It offers hiking and biking trails, bird-watching, and water activities on Eagle Creek Reservoir.

The city also has the Indianapolis Cultural Trail, an 8-mile urban bike and pedestrian path connecting various neighborhoods, parks, and cultural districts. Other outdoor recreational options include golf courses, botanical gardens, and the Indianapolis Motor Speedway, home of the famous Indianapolis 500 race. Indianapolis provides a variety of outdoor experiences for nature enthusiasts and sports lovers alike.