In the coastal area, wind current moves from the sea towards the land during the day; but during the night it moves from land to the sea.This is because the air above the land gets heated quickly during the day and starts rising. This creates a region of low pressure as a result air over sea rushes into this area of low pressure. This movement of air from one region to the other creates winds. During the night, as the water cools down slowly, the air above the water is warmer than the air on land. So air moves from land to sea creating winds.