The Sinamar River is a river in

West Sumatra West Sumatra ( id, Sumatra Barat) is a Provinces of Indonesia, province of Indonesia. It is located on the west coast of the island of Sumatra and includes the Mentawai Islands off that coast. The province has an area of , with a population of 5, ...

province, in the central part of

Sumatra Sumatra is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the sixth-largest island in the world at 473,481 km2 (182,812 mi.2), not including adjacent i ...

island,

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...

, about 900 km northwest of the capital

Jakarta Jakarta (; , bew, Jakarte), officially the Special Capital Region of Jakarta ( id, Daerah Khusus Ibukota Jakarta) is the capital and largest city of Indonesia. Lying on the northwest coast of Java, the world's most populous island, Jakarta ...

.Batang Sinamar
at Geonames.org (cc-by); Last updated 2013-06-04; Database dump downloaded 2015-11-27 It is a tributary of the

Ombilin The Ombilin Coal Mine (formerly PT Tambang Batubara Ombilin (TBO)) is a coal mine near Sawahlunto, West Sumatra, Indonesia. It is located in a narrow valley along the Bukit Barisan mountains, among the Polan, Pari, and Mato hills, approximately ...

Indragiri River The Indragiri River is a river in Sumatra, in the Indonesian province of Riau, Indonesia, about 800 km northwest of the capital Jakarta. It is formed from the union of the Ombilin River and the Sinamar River, and empties into the Strait of Ma ...

Geography

The river flows in the central area of Sumatra with predominantly

tropical rainforest climate A tropical rainforest climate, humid tropical climate or equatorial climate is a tropical climate sub-type usually found within 10 to 15 degrees latitude of the equator. There are some other areas at higher latitudes, such as the coast of southea ...

(designated as ''Af'' in the Köppen–Geiger climate classification). 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.

References

{{Rivers of Sumatra Rivers of West Sumatra Rivers of Indonesia

Geography

See also

References