The professionals from ASC Heating & Air want you to get the most out of our HVAC systems in San Antonio, TX, including with your AC settings. Spring in San Antonio is the warm-up act for a long, hot summer. One week you are enjoying mild evenings, and the next you are battling humidity and high temperatures that make your air conditioner work overtime. The good news? With a few smart thermostat settings and a little preventative maintenance, you can stay comfortable now while setting your system up for peak performance when summer arrives.
Below are the best AC settings for spring in San Antonio, plus practical tips to improve energy savings, indoor comfort, and overall system reliability.
Start With a Smart Temperature Setpoint (Comfort + Efficiency)
A great spring strategy is to keep your home comfortable without running the AC harder than it needs to. In many San Antonio homes, a solid baseline setting is:
- Home and awake: 76–78°F
- Sleeping: 74–78°F (choose what feels comfortable with your bedding and ceiling fans)
- Away from home: 80–85°F
If you are used to cooler indoor temperatures, do not worry; you do not have to jump straight to 78°F overnight. Instead, raise your thermostat 1–2 degrees at a time over a week or two. Your body adapts quickly, and the savings can add up.
Use a Schedule Instead of Constant Adjustments
In spring, many homeowners fall into the habit of constantly adjusting the thermostat: down in the afternoon, up at night, down again the next day. That can lead to inconsistent comfort and extra runtime.
A programmable or smart thermostat helps you set a schedule that matches your routine. The goal is simple: cool when you need it and ease off when you do not. If you do not have scheduling features, you can still follow the same idea manually, just try to avoid frequent back-and-forth changes.
Also, make sure your system is set to “AUTO” fan, not “ON.”
- AUTO runs the fan only when cooling is happening.
- ON keeps the fan running constantly, which can increase energy use and sometimes make your home feel more humid.
Control Humidity for Better Comfort
San Antonio spring weather can swing from dry to sticky, and humidity can make your home feel warmer than the thermostat says. If you have a thermostat that displays humidity, or if you use a dehumidifier, the target range for indoor comfort is often around 40–55%.
When humidity is controlled, you can often keep your thermostat a little higher while still feeling comfortable, which is an easy win for energy savings.
Take Advantage of Fans and Airflow
Ceiling fans do not lower the room temperature, but they make you feel cooler by improving airflow. That means you can usually set the thermostat 2 to 4 degrees higher while maintaining comfort.
Quick fan reminder:
- In spring and summer, set ceiling fans to spin counterclockwise to push air downward.
Also, check that ducts and supply vents are open and unobstructed by furniture or rugs. Restricted airflow forces your system to run longer and work harder.
Spring is the Perfect Time for an AC Tune-Up
Thermostat settings can only do so much if your system is not operating efficiently. That is why spring is an ideal time to schedule an AC checkup/tune-up, before the heavy summer workload hits.
A professional tune-up from the team at ASC Heating & Air can help:
- Improve efficiency so your system cools with less energy
- Reduce surprise breakdowns during the first major heat wave
- Extend the lifespan of your air conditioner by reducing wear and tear
- Help ensure safe, correct operation and catch small issues before they become expensive repairs
During an AC tune-up, our technicians inspect key components, verify proper airflow, check electrical connections, confirm the system is cycling correctly, and make sure everything is ready for summer demand. Even minor problems, like dirty coils, a struggling capacitor, or airflow restrictions, can lead to higher bills and extra stress on your equipment.
Get Your System Spring-Ready With ASC Heating & Air
If you want dependable comfort and lower cooling costs this year, the best move is to combine smart thermostat settings with professional maintenance from ASC Heating & Air in San Antonio, TX. Our team provides trusted AC checkups and tune-ups to help ensure your system runs efficiently now and stays strong through the summer.
Ready to get ahead of the heat? Contact us at ASC Heating & Air today to schedule your spring AC tune-up.