The Best Thermostat Setting for Summer
When the summer heat arrives, most homeowners face the same challenge: how do you keep your home comfortable without sending your energy bills through the roof?
It’s tempting to crank the thermostat down to ice-cold temperatures during the hottest months of the year, but doing so can actually increase energy costs, put unnecessary strain on your HVAC system, and still leave your home feeling uncomfortable in the long run.
At Tobin HVAC, one of the most common questions we hear during warmer months is: “What temperature should I keep my thermostat set at in the summer?”
The answer depends on a few factors, including comfort preferences, humidity levels, and whether you’re home during the day — but there are recommended temperature ranges that help balance comfort and energy efficiency.
What Is the Recommended Summer Thermostat Setting?
According to energy experts, the ideal thermostat setting during warmer months is typically around 78 degrees Fahrenheit when you’re home and awake.
While 78 degrees may sound warmer than some homeowners prefer initially, many people find it surprisingly comfortable once they adjust — especially when paired with ceiling fans, proper airflow, and humidity control.
When you’re away from home, raising the thermostat by 7–10 degrees can lead to significant energy savings without negatively impacting your comfort when you return.
A common energy-efficient schedule looks like this:
- 78°F when home
- 82–85°F when away
- A slightly cooler setting at night if needed for sleeping comfort
Even increasing your thermostat by just a few degrees can noticeably reduce cooling costs during the summer months.
Why Setting the Thermostat Too Low Costs More
Many homeowners believe setting the thermostat extremely low cools the house faster. In reality, your air conditioner works at the same speed regardless of the temperature setting.
Lowering your thermostat to 68°F or lower doesn’t cool your home more quickly, it simply forces your HVAC system to run much longer, increasing:
- Energy usage
- Utility bills
- Wear and tear on equipment
- Risk of system breakdowns
Your air conditioner’s job is to maintain a target temperature, not accelerate cooling speed. The farther your thermostat setting is from the outdoor temperature, the harder your system has to work.
During extreme summer heat, this extra strain can shorten the lifespan of your HVAC equipment and increase the likelihood of costly repairs.
Humidity Plays a Bigger Role Than You Think
One reason some homes feel uncomfortable even at lower temperatures is humidity.
High humidity levels can make your home feel sticky and warmer than it actually is. A properly functioning air conditioning system helps remove moisture from the air as it cools, improving overall comfort.
In many cases, improving humidity control allows homeowners to keep the thermostat a few degrees higher while still feeling comfortable.
Signs your home may have humidity issues include:
- Sticky or damp feeling indoors
- Condensation on windows
- Musty odors
- Uneven cooling
- Feeling uncomfortable even with the AC running constantly
If your home struggles with humidity, it may be worth having your system inspected to ensure it’s properly sized and operating efficiently.
Smart Thermostats Can Help Reduce Costs
One of the easiest ways to improve summer energy efficiency is by installing a smart thermostat.
Smart thermostats automatically adjust temperatures based on your schedule, helping reduce unnecessary cooling when nobody is home. Many models also learn your habits over time and optimize energy use automatically.
Benefits of smart thermostats include:
- Lower monthly energy bills
- Remote control from your phone
- Automated schedules
- Energy usage tracking
- Improved comfort consistency
At Tobin HVAC, we often recommend smart thermostat upgrades for homeowners looking to maximize both comfort and efficiency during the summer months.
Additional Tips to Stay Cool Without Overworking Your AC
Your thermostat setting is only one part of the equation. There are several other ways to keep your home cooler while reducing strain on your HVAC system.
Use Ceiling Fans
Ceiling fans improve airflow and create a wind-chill effect that helps rooms feel cooler. This often allows homeowners to raise the thermostat a few degrees without sacrificing comfort.
Keep Blinds and Curtains Closed
Direct sunlight can significantly heat up your home during the day. Closing blinds and curtains during peak sunlight hours helps reduce indoor temperatures naturally.
Change Air Filters Regularly
Dirty air filters restrict airflow and force your HVAC system to work harder. During summer, filters should typically be checked monthly and replaced as needed.
Avoid Heat-Producing Appliances During Peak Hours
Ovens, dryers, and dishwashers all generate heat. Running these appliances during cooler evening hours can help reduce indoor temperatures.
Schedule HVAC Maintenance
Routine maintenance helps ensure your system is operating at peak efficiency. A neglected system often works harder, cools less effectively, and costs more to operate.
Finding the Right Balance for Your Home
Every home and family is different. Some homeowners may prefer slightly cooler temperatures, while others prioritize energy savings. The goal is finding a balance that keeps your household comfortable without unnecessarily overworking your HVAC system.
If your home never seems comfortable, your energy bills are unusually high, or your AC struggles to keep up during hot weather, it may be time to have your system evaluated by a professional.
At Tobin HVAC, we help homeowners improve comfort, lower energy costs, and keep their systems running efficiently all summer long.
Trust Tobin HVAC for Summer Comfort
The right thermostat setting can make a major difference in both your comfort and your utility bills during warmer months. Small adjustments, combined with proper HVAC maintenance and airflow improvements, can lead to significant long-term savings.
Whether you need seasonal maintenance, thermostat upgrades, AC repairs, or a complete system replacement, Tobin HVAC is here to help keep your home cool, comfortable, and energy efficient all summer long.
TOBIN HVAC is one of the Most Trusted Names in Commercial HVAC in the greater Denver area for over 70 years. At TOBIN HVAC, we believe that true comfort comes without compromise. Our commitment to excellence means we never cut corners—whether it’s the quality of our products, the expertise of our technicians, or the care we put into every service. Contact us today for a free quote.
