Nayarit's natural floral habitat consists of tropical coastal savannah, tropical deciduous forest, tropical semi-deciduous forest and riparian wetland. The region also includes large and small tracts of cultivated land.

The lush Nayarit jungle is home to over 300 species of orchids alone. The biodiverse tropical deciduous forests of Mexico, such as those of Nayarit's foothills and mountains, contain up to 40% of Mexico's flora and fauna diversity.

Parts of the tropical deciduous forest on the Pacific Coast near Nayarit have been found to be among the top 10 most species-rich floral habitats on earth.

The fertile coastal plain and lush jungle of the foothills and mountains of the Sierra Madre Occidental support a wide variety of fauna, including over 400 bird species, and a rich diversity of mammals, reptiles, amphibians, and other animal species.

Some of the significant birds include the Amazon Parrot, Tropical Kingbird, Great Kiskadee, Hooded Oriole, and the Blue-footed Booby.

Mammals include an incredibly wide range of 'big cats' such as Ocelot, Margay, Jaguar, Jaguarundi and Puma along with deer, wild boar, coati mundi, skunk, badger, coyote, wild rabbit, armadillo, various snakes, lizards, and frogs.