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Rokan-kiri River Sungai Rokan Kiri, Soengai Ro Kon-Kiri
Location of river mouthShow map of SumatraRokan-kiri River (Indonesia)Show map of Indonesia
Location
Country	Indonesia
Physical characteristics
Source
• location	Sumatra
Mouth	Rokan River

Rokan-kiri River is a river in Riau province, central part of Sumatra island, Indonesia, about 1,100 km northwest of the capital Jakarta. It is a tributary of the Rokan River.

Geography

The river flows in the central 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 August, when the average temperature is around 24 °C, and the coldest is January, at 22 °C. The average annual rainfall is 2742 mm. The wettest month is November, with an average of 401 mm of rainfall, and June is the driest, with 85 mm of rain.

See also

• List of drainage basins of Indonesia
• List of rivers of Indonesia
• List of rivers of Sumatra

References

1. Rand McNally, The New International Atlas, 1993.
2. Sungai Rokan Kiri at Geonames.org (cc-by); Last updated 2013-06-04; Database dump downloaded 2015-11-27
3. Peel, M C; Finlayson, B L; McMahon, T A (2007). "Updated world map of the Köppen-Geiger climate classification". Hydrology and Earth System Sciences. 11 (5): 1633–1644. Bibcode:2007HESS...11.1633P. doi:10.5194/hess-11-1633-2007. Retrieved 30 January 2016.
4. "NASA Earth Observations Data Set Index". NASA. 30 January 2016.
5. "NASA Earth Observations: Rainfall (1 month - TRMM)". NASA/Tropical Rainfall Monitoring Mission. 30 January 2016.

1°23′44″N 100°56′04″E / 1.39555°N 100.93458°E / 1.39555; 100.93458

• Rivers of Riau
• Rokan basin