Question

explain why is there a change in the wind direction in coastal areas during the day and at night

Answer 1

The air over the ocean is now warmer than the air over the land. The land loses heat quickly after the sun goes down and the air above it cools too. ... This causes a small temperature gradient between the ocean surface and the nearby land at night and the wind will blow from the land to the ocean creating the land breeze.

Answer 2

due to see breezes I.e during daytime land get heated up quickly than water due to low specific heat so there will be low pressure created over land so see breezes move from water to land and vice versa during night