Land and Sea Breezes


These are Local Winds.

Land and sea breezes are prevalent on the narrow strips along the coasts or a lake.

It is a diurnal (daily) cycle, in which the differential heating of land and water produces low and high pressures.

During the day when landmass gets heated more quickly than the adjoining sea or large lake; air expands and rises.

This process produces a local low pressure area on land.

Sea breeze then develops, blowing from the water (high pressure) towards the land (low pressure).

The sea breeze begins to develop shortly before noon and generally reaches its greatest intensity during mid-day to late afternoon.

These cool winds have a significant moderating influence in coastal area.

 

At night, the land and the air above it cools more quickly than the nearby water body.

As a result, land has high pressure while the sea has comparatively a low pressure area.

Gentle wind begins to blow from land (high pressure) towards sea (low pressure).

This is known as land breeze.