What temperature should I set my air conditioner in summer?
David Mccullough
Published Jan 15, 2026
In comparison, the ideal air conditioner temperature during the summer months is 78 degrees Fahrenheit. However, these recommended temperatures are intended as a base point to start from and only apply while you're at home and awake.
What is a good temperature for AC in summer?
It turns out that the best indoor temperature for your home during the summer months is 78 degrees, according to the U.S. Department of Energy.Is 72 a good temperature for air conditioning?
Once you have the right size air conditioner, there's still an ideal temperature range to consider. It's best to not set your thermostat lower than 70 to 72 degrees. Most units are not designed to cool a house below that point, and you risk the system freezing up.What should I set my AC on in the summer night?
To stay comfortable and save money this summer, the U.S. Department of Energy recommends setting your thermostat to 78F (26C) when you are home. Setting your air conditioner to this level will allow you to stay cool and avoid an unusually high electricity bill.Is 76 a good temperature for air conditioning?
Typically, our bodies are most comfortable when the air inside our home is 74-76 degrees. So, a safe setting is 75 degrees. However, this is only necessary when you're in your home.How to make an amazing air cooler for summer
Is 75 degrees too hot to sleep?
Sleep can be disrupted by temperatures anywhere below 65 or above 75. The sweet spot for great sleep is between 68 and 72 degrees. “That's really optimal for sleep,” says Michael J.Is it OK to set my AC to 68?
Typically, we recommend keeping your thermostat set to no less than 68 degrees. Since 69 is above that temperature, it would most likely be safe. It becomes a matter of how comfortable you are with being so close to the recommended limit. Be sure to have your air unit properly maintained for ultimate functionality.Is 68 too cold for house?
Depending on the season, the ideal house temperature for both comfort and efficiency is between 68 to 78 degrees Fahrenheit. In the summer, the recommended thermostat setting is 78 degrees F. In the winter, 68 degrees is recommended for energy savings.What is the best AC temp to save money?
The ideal temperature to keep your thermostat set at over the summer is 78 degrees. This slightly elevated setting will help balance your AC costs out, so you are not wasting money on cool air when your thermostat is already low.Is 72 a good temperature for heat in the winter?
The lower the temperature is inside of the home, the slower the rate of thermal energy loss. To achieve optimal comfort, it is recommended for homeowners to set their thermostats between 68 to 72 degrees while there are people inside of the home.Is 75 degrees hot or cold?
A temperature of 75 degrees Fahrenheit is warm, but it isn't hot. Many consider 75 degrees to be temperate and comfortable.Is 72 to low for AC?
Is 72 too cold for AC? In terms of your air conditioner's proper functioning, 72 degrees is well above the 60 degree 'bottom out' point. So, no, setting your air conditioner to 72 degrees won't pose an issue.Why does my house feel cold at 73?
Your house could be cold due to an old air filter, a faulty furnace, improper insulation, or leaky ductwork. The simple fixes, like replacing an air filter, are relatively easy to complete. However, if the heater itself needs repairs, it's best to call in a professional to take a look and determine the problem.Is 80 degrees too hot for a house?
In general, it's safe to increase indoor temperature up to 80 degrees in summer and decrease indoor air temperature to 55 degrees in winter, but there are exceptions - for example, if you live with a baby or an elderly or immune-compromised individual.Should AC be on auto or on?
The “Auto” AC Setting Is Best If:You're out of the house a lot, or just want to keep energy use and costs down. Auto mode will not run the air conditioner 24/7, so your home will not be constantly cooled. This is ideal for people who won't be home during the day.