Carmel, Indiana has a humid continental climate with warm summers and cold winters. The city is situated in the White River watershed, which provides a source of drinking water for the region. However, the river also carries pollutants from agricultural and urban runoff, which can impact water quality. Despite this, there are several outdoor recreation opportunities in Carmel, including over 200 miles of paved bike paths and nature trails, as well as parks and nature reserves. The Monon Trail, a popular path for walking, running, and biking, runs through the heart of the city and connects to other trails in the area. Additionally, Carmel has several lakes and ponds for fishing and boating.