Alto Parnaíba

Alto Parnaíba is a Brazilian municipality in the southernmost tip of the state of Maranhão. In 2020, the city's population was 11,212.

The municipality contains part of the 724324 ha Nascentes do Rio Parnaíba National Park, created in 2002.

Climate
Alto Parnaíba experiences a tropical savanna climate (Köppen: Aw) with hot temperatures and distinct wet and dry seasons.

The city experiences a wet season from November to April. The dry season extends from May to September, with June through August having almost no rainfall.

Alto Parnaíba has hot and humid conditions throughout the year. September and October, before the wet season, are the hottest months, with average highs around 36 C.