Condensation
I should never assume; however, assuming you mean a cold glass in a hotter humid environment; condensation.
Condensation will form on the surface of the glass.
The process responsible for water droplets forming on the outside of a glass of lemonade on a hot summer day is condensation. When the warm, humid air comes into contact with the cold surface of the glass, the temperature of the air near the glass decreases. This cooling causes the water vapor in the air to lose energy and transition into liquid form, resulting in the formation of tiny water droplets on the glass's surface.
Well, if your windows are thin and get cold enough, the moist, humid air outside will condense on the surface of the windows, much like the condensation that appears on a cold beverage can or glass in a humid room.
When a cold glass is exposed to warm, humid air, it causes the water vapor in the air to condense and form droplets on the outside of the glass. This is because the cold glass surface reduces the temperature of the air around it, causing the water vapor to reach its dew point and change from a gas to liquid form.
Condensation forms on a cold glass of water when the warm, humid air comes into contact with the colder surface of the glass. The temperature difference causes the water vapor in the air to cool and turn into liquid water droplets on the glass, a process known as condensation.
When the air is humid and the glass is cold.
Water droplets form on the outside of a glass of a cold drink when warm, humid air comes into contact with the cold surface of the glass. The air near the glass cools down and its moisture condenses into liquid water droplets, creating the phenomenon known as condensation.
It is very humid outside today
the water droplets indicate that the air is cooler on one side of the glass. If the droplets are inside, then the outside is cooler. If the droplets are outside, it means the inside is cooler.
Water droplets form on the outside of a glass of cold water when warm, humid air comes into contact with the cold surface of the glass, causing the air to cool and reach its dew point. This leads to condensation of water vapor in the air, forming droplets on the outside of the glass.
It is called condensation, warm and humid inside, cooler outside.