Is there a temperature that keeps you cool in the summer and stops your power bill from making you want to faint?
We’ve all been there.
At Chilko AIR, we get this question all the time. Striking the right balance between comfort, cost, and system efficiency isn’t as straightforward as it seems.
This blog will clear up the confusion. You’ll learn what the experts (and energy companies) recommend, how small changes can save you big money, and how to set your aircon to suit both your lifestyle and your wallet.
Why the “Perfect” Temperature Isn’t One-Size-Fits-All
Here’s the truth: there is no single “correct” temperature for every home or every person.
What feels perfectly cool to you might feel like Antarctica to someone else. Age, health, and even what you’re wearing all affect what feels comfortable. Add to that whether you live in a humid coastal area or a dry inland town, and it’s clear: your environment matters just as much as your preferences.
Humidity also plays a sneaky role. On humid days, even 25°C can feel sticky unless your system is dehumidifying properly. On dry days, the same temp might feel just right.
That’s why blindly copying what someone else sets their aircon to isn’t always helpful. Your perfect setting depends on your home’s insulation, layout, who lives there, and how your AC system runs.
So before we throw out a “magic number,” let’s talk about where to start…
The Sweet Spot: Recommended Temperature Settings for Aussie Summers
If you’re looking for a general starting point, energy experts and Aussie power providers typically recommend setting your air-conditioner between 24°C and 26°C during summer.
Why that range? It’s the sweet spot between comfort and energy efficiency. For every degree lower than 24°C, your AC can use around 5–10% more energy. That means setting it to 22°C instead of 25°C might feel cooler, but it’ll cost you significantly more over time.
Most modern systems are designed to cool your space effectively at 25°C, especially if your home is well insulated and you’re using a fan to circulate air.
If you’ve just come in from 35°C heat, 25°C might not feel cold at first, but give it 10–15 minutes. Your body adjusts quickly, and that mild temp can feel refreshingly cool without putting a strain on your system (or your wallet).
Setting Your AC for Day vs. Night
Your cooling needs shift throughout the day, and your thermostat settings should too. Here’s a quick guide:
Time of Day | Recommended Temperature | Why It Works |
Daytime (active hours) | 24–25°C | Keeps you cool while moving around, without overloading the system |
Night-time (sleeping) | 25–26°C | Your body cools naturally, so higher temps still feel comfortable and save energy |
Using Sleep Mode | Starts cooler, then gradually rises | Saves energy as your body no longer needs intense cooling during deep sleep |
Bonus tip: If your system has timers or smart controls, schedule these changes automatically. Your power bill will thank you.
Smart Tips to Stay Cool Without Dropping the Temp
Want to feel cooler without touching the thermostat? Here are simple, proven tricks that work:
- Use ceiling or pedestal fans: They help circulate cool air, making 25°C feel more like 22°C. Plus, they use very little power.
- Close blinds and curtains: Especially on north- and west-facing windows. Blocking sunlight can significantly reduce indoor heat.
- Seal up gaps: Prevent cool air from escaping by checking for drafts around windows and doors.
- Cool only the rooms you use: If you have a zoned system, don’t waste energy cooling unused areas.
- Use appliances wisely: Ovens, dryers, and even lights add heat. Run them early or late, or avoid them on really hot days.
These small steps let you keep your home feeling comfortable without forcing your air-conditioner to work overtime, or driving your electricity bill through the roof.
What to Do When Nobody’s Home
This is one of the most common questions: Should I turn the AC off completely when I leave, or leave it running?
The answer? It depends on how long you’ll be gone.
- Out for a few hours? Set your AC a few degrees higher, around 28°C, or switch to eco mode. That way, your home doesn’t heat up too much, and your system doesn’t have to work overtime when you return.
- Gone all day? Turn it off or use a timer to switch it back on 30–60 minutes before you get home. This avoids wasting energy during the hottest hours when no one’s there.
- Have pets? Keep temps around 26–27°C to ensure they’re comfortable and safe, especially on extremely hot days.
Smart thermostats or Wi-Fi-enabled systems can help you control this remotely, so you always come home to comfort without the waste.
Final Thoughts: Finding the Right Balance for Your Home
So, what’s the “right” temperature for your air-conditioner? In short, it depends on you, your home, and your lifestyle.
And most importantly, don’t stress about chasing a “perfect” number. It’s about finding a balance that fits your household and sticking to small habits that make a big difference.
If you’ve got questions about getting the most out of your air-conditioning system, Chilko AIR is always happy to help. Just reach out to us here.