The average annual temperature is 25 o C with the months September to December being the hottest and June to August being the coldest. Annual rainfall is higher than 3250 mm - March to May are the rainiest months. It is the only National Park situated in the Rondonia State and in it one finds varied tropical fauna and plant species of great scientific interest. The climate is tropical, hot and humid. The rainy season lasts from November to March and winter corresponds to the dry season in June, July and August.
Internal navigation has an important role to play in the transport network in the region .
The waterways network in the Park belong to Madeira river basin. This river is navigable from the river mouth to Porto Velho capital city of Rondonia State. In the park there are springs of many tributaries of Madeira basin. Although access to the Park is only possible by boat it has lodging and facilities available to researchers. The Park is situated in Acre State and was created in 16th July 1989 by Federal Decree No.97,839.