difference between z

Difference between Absolute and Relative Humidity

Difference between Absolute and Relative Humidity

Have you ever noticed how humid it gets during the summer months but then suddenly cools down in autumn? What’s the cause behind these changing temperatures? The answer lies in humidity—more specifically, absolute and relative humidity. Knowing the differences between these two concepts can help us better understand our climate and plan more accurately for our outdoor activities. In this blog post, we’ll explore their definitions, explain why they matter to us, and discuss a few examples of absolute humidity versus relative humidity conditions that exist around the world. Read on to find out more!

What is Absolute Humidity?

Absolute Humidity is an expression of the amount of water vapor present in a given volume of air. Absolute humidity does not depend on temperature and is measured in grams per cubic meter, also known as g/m3. Absolute humidity can tell us a lot about the atmosphere around us, from the likelihood of precipitation to how time spent outside may affect our health and comfort. Absolute humidity is an important factor to consider when forecasting weather or planning outdoor activities, so it pays to stay informed!

What is Relative Humidity?

Relative Humidity measures the amount of water vapor present in the air. The relative humidity is expressed as a percentage, meaning it could be anywhere from 0 percent to 100 percent, depending on the air’s temperature and moisture content.

  • Relative humidity impacts how comfortable you feel outside; when humidity increases, it feels muggy and sticky due to sweat not evaporating quickly. Low humidity means less water vapor in the air and dryer conditions.
  • Relative Humidity affects more than just comfort levels though; it can also impact our health, influencing the spread and severity of respiratory illnesses like colds and flu that spread in allergic conditions.
  • In addition, Relative Humidity plays an important role in climate change because water vapor traps heat, making it less likely for temperatures to move too far from optimal ranges. Understanding Relative Humidity is an important part of modern life and its effects are felt daily by all of us.

Difference between Absolute and Relative Humidity

  • Understanding the difference between Absolute and Relative Humidity is a crucial piece of knowledge in meteorology. Absolute Humidity is a measure of the amount of water vapor present in the air, regardless of temperature.
  • Relative Humidity, on the other hand, measures only how close the air is to being saturated with water vapor at any given temperature – it’s essentially a comparison between Absolute Humidity and how much humidity the air can hold at its current temperature.
  • Knowing these differences allows us to better monitor changing weather patterns and understand what kind of conditions we can expect in our outside environments.


The table aboveummeries the key difference between absolute and relative humidity. Both parameters are important to take into account when weather conditions are being forecasted or monitored, as each one provides different information that can be useful in various applications. For example, if someone is planning to go for a run, they would probably only care about the temperature and not so much about the humidity. On the other hand, if someone was trying to produce a product that needs to stay dry (such as certain types of food), then they would be interested in both measures. As you can see, each has its own purpose, and knowing the difference between them is crucial!

Share this post

Share on facebook
Share on twitter
Share on linkedin
Share on email