Rawas River

The Rawas River is a river in northern Sumatra, Indonesia, about 500 km northwest of the capital Jakarta It is a tributary of the Musi River.

Geography
The river flows in the southern area of Sumatra which has a predominantly tropical rainforest climate (designated as Af in the Köppen–Geiger climate classification). The annual average temperature in the area is 23 °C. The warmest month is October, when the average temperature is around 24 °C, and the coldest is June, at 22 °C. The average annual rainfall is 3546 mm. The wettest month is December, with an average of 482 mm rainfall, and the driest is June, with 115 mm of rain.