Tropical rainforest
The Köppen classification identifies tropical rainforest climate (Zone Af: f = feucht, German for moist) as having north and south latitudinal ranges of 5-10 degrees from the equator. Tropical rainforest climates have high temperatures: the yearly average temperature is between 21 °C to 30 °C ( 70 °F to 85 °F ). The precipitation can reach over 100 inches a year. The seasons are evenly distributed throughout the year, and there is almost no drought period. Regions affected by tropical rainforest climate mainly include the upper Amazon basin of South America, the Northern Zaire (Congo) basin of Africa, and the islands of the East Indies.