During the spring and summer, when the temperature of the land is generally greater than the temperature of the ocean, sea-breeze circulation is most common. The ground and the ocean begin at nearly the same temperature in the early morning hours. As the sun heats up the earth, small differences in temperature between parts of the surface area expand air molecules to fill any gaps. This expands the air above the hot spot into which it flows until the flow of air across it is interrupted by more distant cooler spots. The result is a lowering of pressure over the hot spot and a rapid movement of air from elsewhere on the surface toward it.
The direction of this wind is determined by which way the cool air is moving. If the cool air is coming in from the east, then the warm air over the ocean will move northward along the shoreline drawing in cooler air from the south. This results in a gentle sea breeze from the north or northeast.
If there are mountains nearby they can affect where sea breezes come from. If the cooling effect of the mountains is great enough, it may cause the formation of sea breezes during daytime heat waves even though the temperature of the ocean is still below that of the air. These winds are called "diurnal" because they only happen during the day when it is hot outside.
This wind is known as a "sea breeze," and it develops as a result of temperature variations between a body of water and nearby land. During these seasons, low-pressure systems over warm waters produce clouds that move inland along coastal paths where they release their moisture back into the atmosphere.
During the fall and winter, when the temperature of the land is usually less than the temperature of the ocean, sea-breeze circulation is less common. Instead, cold fronts that move in from the ocean cause clouds with rain or snow inside them. These clouds collapse near the ground before any rain falls out because the air is colder than the surrounding environment. However, some snow may fall during these storms.
Sea breezes are most common on islands near bodies of water. They can also occur on peninsulas and in valley areas near large lakes or the ocean.
Islands often have their own unique climate due to their high altitude and location. Islands can have hot summers due to proximity to tropical climates or long-lasting ice ages due to their isolation. Sea breezes are one way that their isolated nature becomes evident. Since there are no other continents or oceans to tap into for wind, islands must rely on their surroundings for energy transportation.
Because of the differential heating rates of land and water, sea breezes occur during hot summer days. The land surface warms up quicker than the sea surface throughout the day. As the warm air above the land rises, colder air from the ocean flows over the land to replace the rising warm air. This movement of air across the land-sea boundary is called a sea breeze.
The resulting decrease in temperature causes the air to move away from the land and into the ocean, creating a sea breeze. Sea breezes are common in coastal areas around the world because they help reduce the temperatures of these areas during the heat of the day. Without this cooling effect, many people would be injured or killed by high temperatures, particularly those living in close proximity to beaches.
Beaches are often used as natural waste disposal sites. The wind blows garbage away from populated areas and onto the beach where it is destroyed by waves or buried in sand.
Also see here for another article on this site about the science behind sea breezes: The Beach Breeze That Cleans Our Air.
As a result, the air above land is warmer than the air above the sea. Wind comes from the land to the sea, causing cooler ocean waters to rise up and flow away from the land.
At night, when it is dark outside, heat is lost to the sky instead of being retained by the ground. Without this loss of heat to space, there would be no need for any heat sources such as light bulbs or heaters. As it is now, we use these devices because people need sleep and it's difficult to stay warm at night without them.
The wind disappears at night because there are no longer any differences in temperature between land and sea. Both are coldest at night and therefore neither rises much above the others. There may still be some low-level winds at night but they aren't strong enough to be called a breeze.
Daytime sea breezes are usually caused by heat rising from the land causing clouds to form. The increased activity of the monsoon season in many parts of the world contributes to the formation of these clouds, which then cause daytime heat waves. At night, however, there are no clouds to block out the stars so there can't be any moonlight reflected off of water.