humidity

noun

hu·​mid·​i·​ty hyü-ˈmi-də-tē How to pronounce humidity (audio)
yü-
plural humidities
Synonyms of humiditynext
: a moderate degree of wetness especially of the atmosphere compare relative humidity

Synonyms of humidity

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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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Southern California is in the middle of a Super El Niño heat and humidity wave. — Bethy Squires, Vulture, 31 Aug. 2026 Tropical storm may bring more humidity Kittell said the tropical storm could bring more humidity, larger surf and potential coastal flooding issues over the Labor Day weekend. — Paris Barraza, USA Today, 31 Aug. 2026 Weather over both fires remains dry, with humidity measuring only 16% to 19%, according to Roger Gass, a meteorologist with the National Weather Service in the Bay Area. — Los Angeles Times, 30 Aug. 2026 Putting on jewelry before makeup or skin care Jewelry reacts sensitively to various environmental influences, including sweat, humidity, and harsh chemicals. — Larissa Ratschkowski, Glamour, 30 Aug. 2026 See All Example Sentences for humidity

Word History

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of humidity was in the 15th century

Phrases Containing humidity

Rhymes for humidity

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Browse Nearby Words

humidistat
humidity
humidly
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Cite this Entry

“Humidity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/humidity. Accessed 1 Sep. 2026.

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Kids Definition

humidity

noun
hu·​mid·​i·​ty hyü-ˈmid-ət-ē How to pronounce humidity (audio)
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- How to pronounce humidity (audio)
plural humidities
: a moderate degree of wetness especially of the atmosphere see absolute humidity, relative humidity

More from Merriam-Webster on humidity

Britannica.com: Encyclopedia article about humidity

Last Updated: - Updated example sentences
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