{{Infobox river | name =Sinamar River | name_other = Batang Sinamar, Sungai Sinamar | image = | image_size = | image_caption = | pushpin_map = Indonesia Sumatra#Indonesia | pushpin_map_size = 285 | pushpin_map_caption= Location of river mouth | source1_location = West Sumatra | mouth = Ombilin River | subdivision_type1 = Country | subdivision_name1 = Indonesia | length = | source1_elevation = | mouth_elevation = | discharge1_avg = | basin_size = }} The '''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.<ref>Rand McNally, ''The New International Atlas'', 1993.</ref><ref>[http://www.geonames.org/1626986/batang%20sinamar.html Batang Sinamar] at Geonames.org (cc-by); Last updated 2013-06-04; Database dump downloaded 2015-11-27</ref> It is a tributary of the rivers Ombilin or Indragiri.
==Geography== The river flows in the central area of Sumatra with predominantly tropical rainforest climate (designated as ''Af'' in the Köppen–Geiger climate classification).<ref name = "koppen">{{Cite journal | title = Updated world map of the Köppen-Geiger climate classification| url = http://www.hydrol-earth-syst-sci.net/11/1633/2007/hess-11-1633-2007.html| year = 2007| journal = Hydrology and Earth System Sciences| volume = 11|pages= 1633–1644<!--| sid = 1633-1644-->| date =<!-- 01/30/2016-->|access-date=30 January 2016| doi = 10.5194/hess-11-1633-2007| first1 =M C| first2 = B L| first3 = T A| last1 = Peel| last2 = Finlayson| last3 =McMahon| issue = 5| bibcode = 2007HESS...11.1633P| doi-access = free}}</ref> 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.<ref name = "nasa">{{Cite web |url= http://neo.sci.gsfc.nasa.gov/dataset_index.php|title = NASA Earth Observations Data Set Index|date =30 January 2016 | publisher = NASA}}</ref> 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.<ref name = "nasarain">{{Cite web |url= http://neo.sci.gsfc.nasa.gov/view.php?datasetId=TRMM_3B43M&year=2014|title = NASA Earth Observations: Rainfall (1 month - TRMM)| date =30 January 2016 |publisher = NASA/Tropical Rainfall Monitoring Mission}}</ref>
==See also== *List of drainage basins of Indonesia *List of rivers of Indonesia *List of rivers of Sumatra
==References== {{Reflist}} {{coord|0.58333|S|100.86667|E|display=title}} {{Rivers of Sumatra}}
Category:Rivers of West Sumatra Category:Indragiri basin