Why Is There Always A Breeze From The Sea?

In the summer sea breezes are created on land. The sun can warm the sea to a greater depth than it can to land, therefore warming the air above the land sooner than it would over the sea. The warm air rises causing a vacum effect dragging colder air from the sea to fill the gap thus pushing the warm air out over the sea. As the warm air travels out over the sea it begins to cool and fall. Thus creating a cyclic effect along the coast.

Conversly during the winter months the sea having been warmed to a greater depth retains the heat longer than the land. The same thing happens but in reverse. Air is warmed above the sea. The warm air rises, but this time the warmed air contains water vapour picked up from the surface of the sea. The vacum effect is created again dragging the cooler air from the land to fill the gap. This pushes the warm air over the land where it begins to cool. As the warm air cools and drops it releases the water vapour, giving us the rolling fog that is quite common along coastal regions.