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
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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.
The calm weather pattern is set to continue through the weekend and beyond, with the biggest forecast challenge being how aggressive to go with high temperatures, with sunny skies and low humidity levels most days. — Ron Smiley, CBS News, 21 Oct. 2026 Two styling products to finish the look John Frieda Frizz Ease Extra Strength Serum is designed for stubborn frizz and unruly hair, helping create a smoother finish and manage humidity. — Lauren Jarvis-Gibson, Kansas City Star, 21 Oct. 2026 On this warm Saturday morning, humidity makes the air feel thick and wildfire smoke blows in from Minnesota and Canada. — Ian Servantes, Footwear News, 20 Oct. 2026 After high temperatures on Monday top out in the mid-80s with less humidity, low temperatures overnight and early morning Tuesday will dip into the low-70s. — Miami Herald Staff Report, Miami Herald, 19 Oct. 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 23 Oct. 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

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