Between the latitudes 10° and 30° N and S of the equator, due to the trade winds, rainfall is heavier on the eastern coasts, and decreases towards the West.
Between the latitudes 40° and 60° N and S of the equator due to the westerlies, the rainfall is heavy on the west coast, and goes decreases towards the East.
Low pressure areas, especially around the equator receiver high rainfall than high pressure areas.
The rainfall is more over the oceans than on the continent.