humidity

noun

hu·​mid·​i·​ty hyü-ˈmi-də-tē 

yü-

plural humidities

: a moderate degree of wetness especially of the atmosphere compare relative humidity

Synonyms

• moisture

Examples of humidity in a Sentence

the humidity of the region

It's not the heat that will get you—it's the humidity.

The temperature is 67 degrees with humidity at 75 percent.

an area of low humidity

Recent Examples on the Web

Owning and running the restaurant also meant caring for the vast, aging Foster’s collection while managing the vagaries of heat, cold, humidity and stovetop. —Darrell Smith, Sacbee.com, 26 Sep. 2025

Chocolate The fridge is a hard no for chocolate, as the cold humidity affects its flavor and texture. —Stephanie Anderson Witmer, Health, 25 Sep. 2025

The hottest spots set to peak between 83 and 85 degrees Wednesday, with humidity levels continuing to hover around 50%. —Rick Hurd, Mercury News, 25 Sep. 2025

Weather Conditions Cool, low-humidity conditions are ideal. —Christopher Bergland, Verywell Health, 25 Sep. 2025

Word History

First Known Use

15th century, in the meaning defined above

Phrases Containing humidity

• absolute humidity
• relative humidity

Rhymes for humidity

• acidity
• aridity
• avidity
• cupidity
• fluidity
• liquidity
• lucidity
• morbidity
• placidity
• rancidity
• rapidity
• rigidity

Kids Definition

humidity

noun

hu·​mid·​i·​ty hyü-ˈmid-ət-ē 

yü-

plural humidities

: moisture, dampness

especially : the amount of moisture in the air

Medical Definition

humidity

noun

hu·​mid·​i·​ty hyü-ˈmid-ət-ē, yü- 

plural humidities

: a moderate degree of wetness especially of the atmosphere see absolute humidity, relative humidity