The Davao River catchment is the third largest river catchment on the Southern Philippines Island of Mindanao. It drains an area of over 1700 km² with a river length of 160 km. Most of the area is uplands. Average flows within the river near to the mouth are estimated at 70-80 cubic meters per second. The climate type is relatively uniform throughout the year with evenly distributed rainfall and temperatures and humidity (rainfall = 2600mm, Actual Evap 1028mm).