Moyo RiverThe Moyo River is a river of Sumbawa, West [Nusa Tenggara] province, Indonesia, about 1200 km east of capital Jakarta.GeographyThe river flows along the northwestern area of Sumbawa with predominantly tropical savanna climate. The annual average temperature in the area is 26 °C. The warmest month is October, when the average temperature is around 30 °C, and the coldest is February, at 24 °C. The average annual rainfall is 1456 mm.. The wettest month is January, with an average of 294 mm rainfall, and the driest is August, with 19 mm rainfall.