[2][3] The river flows in the West Papua province with predominantly tropical rainforest climate (designated as Af in the Köppen-Geiger climate classification).

[4] The annual average temperature in the area is 21 °C.

The warmest month is October, when the average temperature is around 24 °C, and the coldest is January, at 19 °C.

[5] The average annual rainfall is 3835 mm.

The wettest month is March, with an average of 385 mm rainfall, and the driest is October, with 173 mm rainfall.