The Jelai-Bila River is a river in the far southwest of Central Kalimantan, Indonesia, about 600 km northeast of the capital Jakarta.Sungai Jelai at Geonames.org (cc-by); Last updated 2013-06-04; Database dump downloaded 2015-11-27 It has a drainage area of about 7,105 km2. Much of the land between the Lamandau River and the Jelai-Bila River is developed by agriculture.
Geography The river flows in the central south of Borneo with a predominantly tropical monsoon climate (designated as Am in the Köppen-Geiger climate classification). The annual average temperature in the area is 24 °C. The warmest month is September when the average temperature is around 26 °C, and the coldest is January, at 20 °C. The average annual rainfall is 2760 mm. The wettest month is December, with an average of 531 mm of rainfall, and the driest is September, with 45 mm of rainfall.
See also List of drainage basins of Indonesia List of rivers of Indonesia List of rivers of Kalimantan
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