Does Your AC Work Harder on Days Where the Humidity Is Really High?

Humidity can be awful for all who are affected by it, including your AC unit. You may begin to feel faint after being outside in high humidity for a while. Eventually, the heat index wears you down to the point of dehydration, forcing your body to work as twice as hard, because every ounce of sweat has to be replaced with water.

How Does Humidity Affect Your AC Unit

Your AC handles the humidity in much the same way as you do. Your body works overtime, and your AC does the same when it is forced to adjust to the humidity. When the humidity goes up, you might find yourself cranking up the AC. But even the best AC struggles when it goes up against the humidity of a hot summer day.

Sometimes your AC can’t compete with the humidity, but other times there may be signs that it’s time to get a new unit. These signs include, but aren’t limited to, foggy windows, a musty smell, and the feeling of moisture.

The Size of Your Unit Matters

On humid days, moisture is already in the air, causing it to feel much hotter than it really is. In turn, if your unit is too large, or too small, for your home, this can make it much more difficult for it to filter out your home’s humidity. In doing so, you might find that even with your AC on full blast, the area as a whole still feels relatively hot.

However, a common misconception is “the bigger the unit, the better.” That’s why it is important for you to contact an expert to better assist you if you’re unsure what unit is best for your home. They can help assess your space and determine the most effective unit.

In addition, the length of time you’ve had the unit can affect how well it works in high humidity. If the unit is older, or outdated, you may find that it has to work a whole lot harder in order to cool even the smallest of places. Another factor can be how well the AC is taken care of. If you let it collect dust and fail to keep up with its maintenance, then it may run poorly during the humid months.


You’ll find that even though humidity might be hard on your AC unit, you don’t have to be. Instead, if you seek out the help of a trained professional, you can ensure that it removes the moisture caused by humidity as efficiently as possible. In addition, you’ll also want to properly maintain your AC unit so that you can get the best results, not only in humid weather, but all year round, and for years to come.

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