About The Author: Travis Baugh is a Digital Brand Marketing Manager for Bryant, where he creates clear, helpful content to guide homeowners through heating, cooling, and indoor air quality decisions. His goal is to empower readers with the knowledge they need to choose the right comfort solutions for their home—confidently and comfortably.
What Temperature Should You Set Your Air Conditioner to in the Summer?
The optimal temperature to set your air conditioner in the summer is between 75°F and 78°F when you are home. This range balances indoor comfort with energy efficiency, helping you manage utility costs without sacrificing the cool environment your household needs.
Finding the right thermostat setting isn't just a matter of preference—it's a strategic decision that shapes your home's energy consumption all season long. By understanding how to adjust settings based on occupancy, humidity, and local climate, you can optimize your air conditioning system for reliable, long-term comfort.
What is the Best AC Temperature When Home?
Recommended Setting: 75°F to 78°F
The standard recommendation for balancing cooling needs with energy conservation is 78°F. If that feels too warm, aim for 75°F. Every degree you raise the thermostat can generate meaningful energy savings over the course of the summer season.
Temperature alone, however, is only part of the equation. Humidity levels significantly influence how warm a room feels—high humidity can make 75°F feel sticky and uncomfortable. To get the most from your system, ensure your unit is properly sized to remove moisture effectively. If your home feels humid, you may need to learn what humidity should my house be at?
What is the Best Energy-Saving AC Temperature When You're Away From Home?
Recommended Setting: 80°F to 85°F
When you leave for work or errands, raise your thermostat to between 80°F and 85°F. This "setback" strategy prevents your system from cooling an empty house, while keeping indoor temperatures manageable enough that your AC doesn't have to work overtime to recover when you return.
For seamless control, consider upgrading to smart thermostats. Devices compatible with the Bryant SmartHome App, allow you to adjust settings remotely or create automated schedules—raising the temperature when you leave and lowering it just before you arrive, so you walk into a cool home without wasting energy all day.
What Factors Affect Your Summer AC Temperature Settings?
Several variables in your home may require you to adjust beyond the standard 78°F target:
- Home Size: Larger homes often require more cooling power or slightly lower temperature settings to maintain consistent comfort throughout all rooms.
- Insulation Quality: A well-insulated home retains cool air more effectively. This allows you to use higher thermostat settings without sacrificing comfort, leading to greater energy efficiency.
- Number of Occupants: More people in a home generate more body heat. This may require a cooler temperature setting to ensure everyone stays comfortable.
- Individual Comfort: Comfort is subjective. Finding a temperature that works for everyone in the household is key. As Mike Lea, co-owner of Lea Heating & Air Conditioning notes, “I would say the most important thing I always tell customers is to find a temperature that works for them,” Lea said. “What's more important than being comfortable in your own home?”
- n regions with extreme summer heat, your system will work harder and lower settings may be necessary. In milder climates, higher, more energy-efficient settings are often sufficient.
Common Myths About Summer AC Settings
Misinformation can quietly drive up your energy bills. Here are a few common myths—and the facts that counter them:
- Myth: Setting the AC extra low cools the house faster.
Fact: Your AC cools at a constant rate. Setting it to 65°F won't cool your home any faster than setting it to 75°F; it will just run longer and use more energy.
- Myth: Turning the AC off when you leave saves more energy.
Fact: It often takes more energy to cool a heat-saturated home from scratch than to maintain a consistent setback temperature. Raising the thermostat by a few degrees is the more efficient approach.
- Myth: A one or two-degree change drastically increases your bill.
Fact: Small adjustments have a minimal impact on your monthly bill. Prioritize your comfort. "If 74 feels a lot better, go with 74," says Mike Lea. "You're probably talking about a few dollars a month difference."
“If you're air conditioning the house at 75 and 74 feels a lot better, go with 74," Lea said. "You're not talking about a big difference in efficiency cost. Even with heating, if 68 feels a little chilly, but 70 feels very good, you're probably talking about a few dollars a month difference by heating at a degree or two different in your home."
How Can You Improve Your Home’s Cooling Efficiency?
Optimizing your thermostat settings works best when paired with good home maintenance habits. Focus on these key tasks:
- Replace Air Filters: Replace your air filter every 1–3 months. Dirty filters restrict airflow, forcing the system to work harder.
- Seal Leaks: Apply weatherstripping or caulk around windows and doors to prevent cool air from escaping and warm air from seeping in.
- Schedule Maintenance: Annual professional AC maintenance ensures your central air conditioner runs at peak efficiency and helps identify issues before they become costly repairs.
Connect With A Bryant Dealer For Your AC Needs
Looking for expert advice on the best temperature to set your AC for optimal comfort and energy savings this summer? Connect with your local Bryant dealer today! Their knowledgeable team can help you choose the proper thermostat settings, offer tips on maintaining your system for maximum efficiency throughout the season, and perform an AC tune up to prepare your unit for warm weather.
FAQs
It usually takes 2 to 3 hours for a properly sized AC to cool an average home from 80°F to 72°F, depending on insulation and outdoor temperature.
Expect about 3 to 4 hours in normal summer conditions for a well-functioning system. Poor insulation or extreme heat may extend that time.
Your thermostat may be near a heat source, or airflow could be restricted by a dirty filter or blocked vent. Checking those areas often fixes the issue.
Not necessarily. Keeping the thermostat lower increases energy use. Setting it around 76–78°F when home and higher when away saves more.
Your AC can typically cool about 20°F below the outdoor temperature, so if it’s 100°F outside, maintaining 78–80°F indoors is reasonable.
72°F provides a cool, comfortable setting for most people, but raising it slightly to 75–78°F can improve efficiency and reduce energy costs.
Set your thermostat between 76°F and 78°F, use ceiling fans for circulation, and close blinds to reduce heat gain.
Use “Auto” mode so the fan runs only when cooling is needed, saving energy and maintaining consistent humidity control.
It’s cheaper to adjust the thermostat rather than fully turning the AC off. Turning it off allows heat buildup, forcing the system to work harder later.
Fans use much less electricity than AC, but they only move air—they don’t cool it. Use fans to supplement, not replace, air conditioning.
You actually can—but running both together in a small room may make it feel drafty or too cool. If you do, raise the thermostat a few degrees to save energy.
The 20-degree rule means that a properly working air conditioner can typically cool the air about 20°F below the indoor return temperature. For example, if your home is 78°F, your vents should blow air near 58°F.
Learn More About Air Conditioners
- Learn how does air conditioning work
- Get in the know on air conditioning service
- Explore AC replacement
- Discover what size air conditioner you need
- Get help with an AC not working
- Find out how long do AC units last?
