Topography includes the following top elevations in Fakfak Mountains: Tropical rainforest climate prevails in the area.

The hottest month is November, when the average temperature is 21 °C, and the coldest is June, with 18 °C.

The rainy month is June, with an average of 438 mm rainfall, and the driest is October, with 167 mm rainfall.

Fauna of the Fakfak Mountains includes the black-eared catbird and Oninia senglaubi, a member of the family of the narrow-mouthed frogs (Microhylidae).

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