how does humidity affect temperature in a house

How does humidity affect temperature in a house? It is important to understand because humidity is a major factor in establishing the feel of a certain indoor environment.

In order to keep homes and buildings healthy, energy efficient, and comfortable, it is crucial to understand the connection between humidity and indoor temperature.

Not understanding this connection would make it harder to maintain a comfortable environment in your house.

But, how does humidity affect indoor temperature?

Humidity affects the temperature in a house by making the air feel cooler or warmer, depending on whether it goes up or down, and that leads to various issues as well 

Humidity and Its Relations to Temperature

humidity and its relations to temperature

Understanding humidity and how it relates to temperature is of immense importance to maintaining the right levels in your house.

You have probably seen the forecast or basic weather information on mobile phones, etc., which typically displays the temperature and humidity of the area.

Additionally, there is a strong connection between these two, demonstrating significant influence.

Both of these factors have consequences for the local ecosystem, including its plant and animal life. 

Understanding the Connection

understanding the connection

The temperature of an object can be measured in degrees Celsius or Fahrenheit and provides information about its relative warmth or coldness.

Humidity, on the other hand, is a measure of the amount of water vapor in the air, or, more colloquially, of how wet it is.

Although distinct, these ideas have considerable mutual influence. But, essentially, temperature and humidity are inversely proportional.

It means that if the humidity increases, the temperature decreases and vice versa.

The air becomes drier if the temperature increases and drives the relative humidity down. 

How Does Humidity Affect Temperature in a House?

humidity's impact on house temperature

The influence of humidity on air temperature is significant since it modifies both the sensation and the actual temperature.

How humidity affects your indoor temperatures depends mainly on whether it is going up or down. 

Due to its heat-retaining capabilities, moisture can make air feel warmer at high humidity levels, and cooler at low humidity levels.

Here, it is important to understand that humidity is a major factor in global weather, climate, and thermal comfort. 

And to understand its impact, you must get familiar with the role of water vapor, evaporation, and condensation

The Role of Water Vapor

the role of water vapor

The importance of water vapor as a greenhouse gas and its involvement in the planet’s ability to retain heat is undeniable.

The presence of additional water vapor in the air acts as a thermal blanket, increasing the ambient temperature as humidity levels rise.

This causes the dew point to rise, making the air feel warmer and heavier.

On the flip side, air temperatures drop when humidity is low because heat is able to escape more easily. 

Rain, fog, and cloud cover are only some of the meteorological phenomena attributed to the dynamic relationship between humidity and temperature. 

Evaporation and Condensation

evaporation and condensation

The two processes of evaporation and condensation are crucial to understanding how humidity affects air temperature.

Water must be heated in order to undergo its phase change from liquid to gas, a process known as evaporation.

Evaporation of water from a surface or a living organism removes heat from its immediate environment.

The evaporation rate slows in high humidity, meaning less cooling and a warmer sensation overall.

Water vapor releases heat into the air during its transformation into a liquid, causing an increase in temperature.

Fact: Human thermal comfort and regional and global climate dynamics are both impacted by evaporation and condensation. 

How High Humidity Affects Temperature in a House?

high humidity affects temperature in a house

There are a number of ways humidity can affect the temperature in your house.

However, as mentioned already, the effects will change based on whether the humidity levels are going up or down.

Let’s talk a bit about how high humidity affects indoor temperature: 

Thermal Comfort

People within a house may experience discomfort if humidity levels are too high.

Since perspiration evaporates heat from the body, when the environment is humid, people feel hotter than they actually are and are less productive as a result. 

Reduced Efficiency of AC

reduced efficiency of ac

Air conditioners have to work harder in high-humidity conditions to remove heat and moisture from the air, lowering their efficiency.

Not taking measures to correct this humidity can take a toll on your appliance.

In fact, this inefficiency can lead to issues like:

  • Higher energy bills
  • Faster component wear
  • A shorter lifespan of the AC 

The Growth of Mold and Mildew

A high relative humidity within the house is perfect for the growth of mold and mildew.

Damp environments are ideal for the growth of these organisms, which can lead to health problems for occupants as well as structural damage. 

Preventing these issues requires adequate ventilation and moisture control.

Fact: High humidity requires the use of appliances to maintain a tolerable room temperature, which increases energy consumption and leaves a bigger carbon footprint. 

How Low Humidity Affects Temperature in a House?

low humidity affects temperature in a house

It is common to have dry air in your house during the winter, and that is mainly due to a drop in humidity.

Since cold air contains less moisture than warm air, heating reduces the relative humidity inside the house. 

Excessive use of air conditioning, which evaporates moisture from the air as it functions, can also contribute to low humidity during the summer in arid locations.

Let’s talk about how low humidity affects the temperature in your house: 

Static Electricity Buildup

static electricity buildup

One common issue associated with low humidity levels is the problem related to static electricity.

This static electricity can result in mild shocks, damaged gadgets, and sticky clothing, which can be annoying and potentially damaging to sensitive items. 

Wood Shrinking and Cracking

If you live in a wooden house or have lots of wooden furniture around, low humidity can cause serious problems.

Wooden structures are susceptible to drying indoor air, which can lead to long-term damage and costly repairs.

Preventing these problems and extending the life of timber products requires careful humidity regulation. 

Health Effects

Low humidity is associated with skin dryness, eye irritation, and respiratory problems like an increased risk of catching a cold or the flu.

Asthma and other respiratory allergies may also become more severe.

It is important to keep the humidity levels in your home at a healthy level for your comfort and health.

health effects

You need to understand that low humidity allows many viruses to thrive for longer, raising the likelihood that you may become ill.

Particles of “infectious aerosols” can rapidly lose bulk due to vaporization in dry environments.

Similarly, due to increased tear evaporation, dry eyes can occur in low humidity environments.

This destroys the delicate balance of moisture required for optimal performance. 

Fact: Dry air has the potential to dry out your skin at the surface and draw the moisture out to leave you with small cracks. 

Strategies for Managing Humidity in a House

strategies for managing humidity in a house

Proper control of indoor humidity to maintain the right temperature is essential for lower problems related to energy efficiency, comfort, and illness.

Thankfully, you can try a number of ways to control humidity levels and keep them within the desired range.  

Make Use of the Exhaust Fan

Bathroom, kitchen, and laundry room exhaust fans all contribute to the reduction of interior humidity.

To keep humidity levels comfortable, use them while performing moisture-generating activities like cooking, showering, or doing laundry. 

Open Windows and Doors

open windows and doors

By letting in fresh air through open windows and doors, you can reduce the amount of moisture in the air within your home.

This method works great in mild climates when external humidity is lower than inside humidity

Use a Dehumidifier

Improve home comfort and lessen the likelihood of mold and mildew formation with the help of a dehumidifier by removing extra moisture from the air in high humidity settings. 

Try a Humidifier

try a humidifier

A humidifier can help keep a room at a comfortable moisture level, mitigate dry skin and respiratory concerns, and cut down on static electricity in low-humidity conditions.  

Fact: The ideal humidity levels in your house should be anywhere between 30% and 50%. 


How does humidity affect temperature in a house? Humidity levels can directly impact how cold or warm indoor air feels.

And with changing humidity levels and temperatures, there will also be a change in how comfortable the indoor environment feels.

Both low and high humidity levels can cause health issues and affect energy bills, which is why you need to monitor those levels and take steps to fix them.