What is Humidity? (Moisture)

Humidity is a term that many of us hear regularly, especially when discussing the weather. But what exactly does it mean, and why is it important? Let’s delve into the concept of humidity and its significance.

Understanding Humidity

At its core, humidity refers to the amount of water vapor present in the air. When there’s a high concentration of water vapor, we say the humidity is high. Conversely, when the air contains a lower amount of water vapor, we have low humidity. This balance of water vapor in the atmosphere plays a crucial role in determining our comfort levels and the overall feel of the environment around us.

According to National Geographic, “Humidity is the amount of water vapor in the air. If there is a lot of water vapor in the air, the humidity will be high.” Similarly, Wikipedia defines humidity as “the concentration of water vapor present in the air.”

The Different Types of Humidity

While the term “humidity” is commonly used in everyday language, weather scientists often use a more specific term: “relative humidity.” This term describes the amount of water vapor in the air in relation to the maximum amount the air can hold at a particular temperature. As the temperature changes, so does the air’s capacity to hold water vapor, which in turn affects the relative humidity.

Why Humidity Matters

Humidity plays a significant role in our daily lives. It affects our comfort levels, health, and even the efficiency of various household appliances. For instance, high humidity combined with high temperatures can make the environment feel even hotter than it actually is, leading to discomfort and potential health risks. On the other hand, low humidity can dry out our skin, irritate our respiratory systems, and even damage wooden furniture and musical instruments.

In Conclusion

Understanding humidity is essential for various reasons, from planning our daily activities to ensuring our comfort and well-being. By being aware of the humidity levels and how they affect us, we can make informed decisions and adapt to different weather conditions more effectively.


  • https://www.nationalgeographic.org/encyclopedia/humidity/
  • https://en.wikipedia.org/wiki/Humidity