Average annual rainfall is . Temperatures vary from , with an average of . The reserve has one of the largest nesting areas for freshwater Amazon turtles, where more than 200,000 freshwater turtles are born each year. Species include the endangered
Arrau turtle (Podocnemis expansa), the
six-tubercled Amazon River turtle (Podocnemis sextuberculata) and the
yellow-spotted river turtle (Podocnemis unifilis). The Abufari reserve has several areas of extreme diversity including the Chapéu complex, an ecosystem that consists of hundreds of lakes, ponds, creeks and areas of flooded forest. Migratory bird species include
American purple gallinule (Porphyrio martinicus),
solitary sandpiper (Tringa solitaria),
yellow-billed tern (Sternula superciliaris),
black skimmer (Rynchops niger),
yellow-billed cuckoo (Coccyzus americanus),
Swainson's flycatcher (Myiarchus swainsoni),
osprey (Pandion haliaetus),
tropical kingbird,
fork-tailed flycatcher (Tyrannus savana),
southern rough-winged swallow (Stelgidopteryx ruficollis),
grey-breasted martin (Progne chalybea) and
sand martin (Riparia riparia). ==Conservation==