| Van Daalen River | |
| Name Other: | Sungai Vandalen, Van Daalen Rivier |
| Pushpin Map: | Indonesia Central Papua#Indonesia Western New Guinea#Indonesia |
| Pushpin Map Size: | Location of river mouth |
| Source1: | confluence of Toradja and Ruhl |
| Source1 Location: | Kampung Golu, Bina District, Puncak |
| Source1 Coordinates: | -3.381°N 137.466°W |
| Mouth: | Tariku River (border of Central Papua and Papua) |
| Mouth Location: | Kampung Deide, Dagai District, Puncak Jaya |
| Mouth Coordinates: | -3.024°N 138.057°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Indonesia |
| Subdivision Type2: | Province |
| Subdivision Name2: | Central Papua |
| Length: | 140 km |
The Van Daalen River (Indonesian: Sungai Vandalen) is a river of Western New Guinea in Puncak Jaya and Puncak, Central Papua, Indonesia. It is a tributary of Tariku River.[1] [2]
The river flows in the northern area of Papua with predominantly tropical rainforest climate (designated as Af in the Köppen-Geiger climate classification).[3] The annual average temperature in the area is 21 °C. The warmest month is October, when the average temperature is around 22 °C, and the coldest is January, at 18 °C.[4] The average annual rainfall is 5121 mm. The wettest month is March, with an average of 573 mm rainfall, and the driest is July, with 324 mm rainfall.[5]