A sea breeze and land breeze are two types of local winds that occur near coastal areas. Here is a diagram illustrating both phenomena:

- Sea Breeze:
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In the diagram, the land is depicted on the left side, and the sea is on the right side. During the day, the land heats up faster than the sea due to differences in their heat capacities. As a result, the warm air over the land rises, creating a low-pressure area. The cooler air from the sea rushes in to fill this void, resulting in a sea breeze blowing from the sea towards the land.

- Land Breeze:
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During the night, the land cools down faster than the sea, causing the air over the land to become cooler and denser. This cooler air creates a high-pressure area, and the warmer air over the sea moves towards the land to balance the pressure, resulting in a land breeze blowing from the land towards the sea.

Note: The diagrams above are simplified representations of the sea breeze and land breeze phenomena, and the actual patterns and airflow may vary depending on various factors such as topography, temperature gradients, and atmospheric conditions.