Wind Systems that Affect the Philippines

Trade Winds
As air above and below the equator moves toward the poles, it is deflected by the Coriolis effect. At around 30° north and south latitudes, the air cools enough to sink towards Earth's surface. A part of it descends at these latitudes and forms a belt of high pressure areas. The air that settles at the surface flows both to the north and to the south. The part moving back to the equator is the belt of surface winds called trade winds.

In the Philippines, the trade winds blow from late March to June. They come from the southern part of the North Pacific Ocean and they reach the country from the east. Trade winds bring warm winds during summer and rains to the eastern part of the country.