Sinamar River


Sinamar River is a river in West Sumatra province, in the central part of Sumatra island, Indonesia, about 900 km northwest of the capital Jakarta.
It is a tributary of the Ombilin/Indragiri River.

Geography

The river flows in the central area of Sumatra with predominantly tropical rainforest climate. The annual average temperature in the area is 23 °C. The warmest month is September, when the average temperature is around 24 °C, and the coldest is January, at 21 °C. The average annual rainfall is 3023 mm. The wettest month is November, with an average of 444 mm rainfall, and the driest is June, with 124 mm rainfall.