Why is there so much equatorial rain?

First, because of the high equatorial temperature, the water vapor in the equatorial low-pressure area and subtropical high flows to the low pressure, which is easy to form a rain layer;

Second, the direct sunlight lasts for a long time and the water vapor evaporates quickly; A large amount of solar radiation led to the formation of strong convective weather.

Third, the dual role of atmospheric ocean currents and tropical warm air currents.

So there is a lot of rain in the equatorial region. Note that not all areas near the equator are heavy rainfall areas, such as the Sahara desert passing through the equator!