Nuku is one of the four districts of West Sepik Province occupying a geographical area from the foothills of the Torricelli at an altitude of 1,300masl to the floodplains of the Sepik River tributaries at 50masl . Annual rainfall distribution is between 2,100 and 3,000mm. There is a distinct dry season in parts of the district between the months of June to September, dictating an intensive yam and banana cultivation system, particularly in Makru, Seim, Kafle and Arkosame. Agriculture system in other areas in the district is predominantly sago or a combination of sago and root crops and bananas.