Sembakung River

The Sembakung River is a river in Borneo that flows from Sabah, Malaysia to North Kalimantan, Indonesia, about 1600 km northeast of the capital Jakarta.

Geography
The 322 kilometers long river flows in the northeastern area of Borneo island with predominantly tropical rainforest climate (designated as Af in the Köppen-Geiger climate classification). The annual average temperature in the area is 24 °C. The warmest month is August, when the average temperature is around 26 °C, and the coldest is January, at 22 °C. The average annual rainfall is 4020 mm. The wettest month is December, with an average of 393 mm rainfall, and the driest is June, with 251 mm rainfall.