As tropical rainforests are located on or close to the Equator, the climate is typically warm and wet. The high rainfall and year-round high temperatures are ideal conditions for vegetation growth. The wide range of plants encourages a huge variety of insects, birds and animals. Temperatures in the tropical rainforest are high throughout the year. Annual temperatures usually average around 28°C and show little variation from day to day. The range is temperature throughout the year is low. The temperature never drops below 20°C and rarely exceeds 35°C. Rainfall levels are high, typically over 2000mm per year. This significant amount of rainfall supplies huge rivers such as the Amazon in Brazil and the Congo in Central America. Most afternoons experience a heavy downpour, which helps to keep the rainforest moist. The atmosphere in the tropical rainforest is hot and humid as the result of high temperatures and abundance of water.
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