Worldwide zones of Tropical rainforest climate (Af).
A tropical rainforest climate is a tropical climate usually found within 10 to 15 degrees latitude of the equator, and has at least 60 mm (2.4 inches) of rainfall every month of the year. Regions with this climate are typically designated Af by the Köppen climate classification. A tropical rainforest climate is typically hot and wet.
Tropical rainforests have a type of tropical climate in which there is no dry season—all months have an average precipitation value of at least 60 mm (2.4 in). In rainforest climates the dry season is very short, and rainfall is normally heavy throughout the year. One day in an equatorial climate can be very similar to the next, while the change in temperature between day and night may be larger than the average change in temperature during the year. 
Additionally, while tropical rainforest climates are typically located near the equator (hence the alternate name “equatorial climate”), there are a number of instances where the climate is found some distance away from the equator. For instance, Santos, Brazil and Palm Beach, Florida are not only far removed from the equator, but are actually located just outside the tropics. Yet both cities features a tropical rainforest climate, albeit with noticeably cooler and warmer periods of the year.
Notable cities with Tropical rainforest climates