Tuntang River

The Tuntang (Kali Tuntang) is a major river of northern Central Java, Indonesia, about 400 km east of the capital Jakarta. It connects Lake Rawa Pening to the Java Sea, east of Semarang. There is a hydroelectric power station on the river near the lake.

Geography
The river flows in the central area of Java with a predominantly tropical monsoon climate (designated as Am in the Köppen-Geiger climate classification). The annual average temperature in the area is 21 °C. The warmest month is September when the average temperature is around 24 °C, and the coldest is June, at 20 °C. The average annual rainfall is 3140 mm. The wettest month is January, with an average of 560 mm of rainfall, and the driest is September, with 14 mm of rainfall.