Humidity is the amount of moisture in the air, also known as Absolute Humidity. The hotter the air is, the more moisture it can hold in the form of water vapour. read more
Relative humidity in coastal areas is be higher than inland areas because the air absorbs moisture directly from the sea. Relative humidity governs the amount of moisture contained in materials at equilibrium with the environment. As relative humidity changes, the object's moisture content adjusts to the new level, creating an equilibrium. read more