Berau River
Berau River is a river of East Kalimantan, Indonesia, about north of the provincial capital Samarinda. Tributaries include the Kelai River. Geography. The river flows in the eastern area of Kalimantan with predominantly tropical rainforest climate (designated as "Af" in the Köppen-Geiger climate classification). The annual average temperature in the area is . The warmest month is April, when the average temperature is around , and the coldest is January, at . The average annual rainfall is . The wettest month is December, with an average of rainfall, and the driest is August, with rainfall.