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River in East Kalimantan, Indonesia
Kelai River Sungai Kelai, Kilai
Location of river mouthShow map of KalimantanKelai River (Indonesia)Show map of Indonesia
The river flows in the eastern area of Kalimantan with a predominantly tropical rainforest climate (designated as Af in the Köppen-Geiger climate classification). The annual average temperature in the area is 23 °C (73 °F). The warmest month is September, when the average temperature is around 26 °C (79 °F), and the coldest is January, at 22 °C (72 °F). The average annual rainfall is 2,835 millimeters (111.6 inches). The wettest month is December, with an average of 332-millimeter (13.1 in) rainfall, and the driest is August, with 154-millimeter (6.1 in) rainfall.