American Meteorological Society Certification (AMS) Practice

During the daytime, a sea breeze occurs when cool air from over the sea moves toward the land. This phenomenon is driven by the differential heating of land and water. During the day, the land heats up faster than the water, causing the air above the land to warm up and rise. As this warm air rises, it creates a low-pressure area over the land. Meanwhile, the cooler air over the sea, which maintains a relatively higher pressure, moves inland to replace the rising warm air, resulting in a sea breeze.

This process is a key aspect of coastal weather patterns and can significantly impact local temperatures and humidity levels. The other options, such as land breeze, mountain breeze, and valley breeze, are associated with different conditions and times of the day, primarily occurring during the night or under specific geographic circumstances. Hence, sea breeze is specifically linked to daytime conditions along coastal areas.