What are the main factors of seasonal variation in tropical rain forest climate zone?

Residents in tropical areas have never experienced the weather with the monthly average temperature below 64 F (18 C). Moreover, the annual average temperature has been fluctuating from 70 to 80 F (265,438+0℃ ~ 27℃). In fact, in tropical areas, night is regarded as winter, that is, the temperature difference between day and night is greater than that between one period and another in a year.

The seasonal variation of tropical rain forest climate zone is mainly based on the fluctuation of annual rainfall rather than temperature change. The famous tropical rainstorm that night brought a lot of precipitation, which promoted the construction of flood discharge systems for two major rivers in the world: the Amazon basin in South America and the Congo river basin in central Africa.

Some tropical areas, especially the savannahs in Southeast Asia and East Africa, have famous dry seasons and rainy seasons, because these areas are affected by monsoon circulation or trade winds.