Asian water monitors are semiaquatic and opportunistic; they inhabit a variety of natural habitats though predominantly this species resides in primary forests and mangrove swamps. It has been noted that these monitors are not deterred from living in areas of human disturbance. In fact, they have been known to adapt and thrive in agricultural areas as well as cities with canal systems (such as in Sri Lanka, where they are not hunted or persecuted by humans).