What is dew point and why does it have an affect on the days weather?

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I was reading an article on Japan’s weather for the Olympic being so hot and the author said “with a dew point of 72 degrees what do you expect?”.
I don’t know what to expect!

In: Chemistry

3 Answers

Anonymous 0 Comments

Dew point represents the air’s ability to retain water. Basically it’s humidity. It’s the temperature at which water will start to form dew on surfaces because the air won’t be able to hold any more moisture.

If you have a dewpoint of 78, that means that there is 100 % humidity up to 78 degrees. (25.5 Celsius) that’s going to be an extremely hot and incredibly muggy and humid air to operate in.

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