Melolo RiverThe Melolo River is a river of Sumba, Indonesia.GeographyThe river flows along the northern area of Sumba with predominantly tropical savanna climate. The annual average temperature in the area is 27 °C. The warmest month is October, when the average temperature is around 32 °C, and the coldest is January, at 24 °C. The average annual rainfall is 966 mm. The wettest month is December, with an average of 206 mm rainfall, and the driest is August, with 4 mm rainfall.