The climate of Papua New Guinea is chiefly influenced by altitude and by the monsoons. The northwest or wet monsoon prevails from December to March, and the southeast or dry trade winds from May to October.
At 462,840 km2 (178,704 sq mi), Papua New Guinea is the world's fifty-fourth largest country. Including all its islands, it lies between latitudes 0° and 12°S, and longitudes 140° and 160°E.
The climate of Papua New Guinea is chiefly influenced by altitude and by the monsoons. The northwest or wet monsoon prevails from December to March, and the southeast or dry trade winds from May to October.