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 of humidity

• 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

But according to the source, the icon is kept in 80% humidity conditions. — News Desk, Artforum, 16 Sep. 2026

The heat and humidity that broke many records during the summer would not have been possible without climate change, according to a study by the World Weather Attribution group. — ABC News, 16 Sep. 2026

The boats can collect measurements including sea-surface temperature, air temperature, atmospheric pressure, humidity, salinity and water density. — Kaif Shaikh, Interesting Engineering, 15 Sep. 2026

High temperatures will be in the upper 70s with plenty of sunshine, low humidity and light winds — all ingredients to spend time outside. — Bill Kelly, CBS News, 15 Sep. 2026

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