What Temperature Should You Set Your AC to in Summer?

Living in Buderim means enjoying the lush greenery of the mountain and refreshing coastal breezes, but when summer arrives, the heat and humidity on the Sunshine Coast can quickly turn your living space into an oven. Knowing the best temperature to set your air conditioner ensures you stay cool without driving your quarterly electricity bill through the roof.

The Golden Rule: Set It to 24°C

For most homes across Buderim and the wider Sunshine Coast, the recommended setting for summer cooling is 24°C. In Australia, energy authorities and cooling technicians consistently recommend keeping your thermostat between 24°C and 25°C during the hotter months.

It can be tempting to drop your unit down to 18°C after coming inside on a sweltering afternoon, but modern air conditioners do not cool the room down any faster by being set to a lower temperature. Instead, your compressor simply works harder and runs longer to reach an unnecessarily cold target. In fact, every single degree you lower your thermostat below 24°C can add approximately 10% to your cooling running costs.

Adjusting for Day vs. Night

Your cooling needs shift throughout the day, and matching your settings to your daily rhythm is one of the easiest ways to optimise power consumption:

Daytime (Peak Heat): Keep your air conditioner set firmly at 24°C. If you are stepping out of the house for short errands, avoid turning it off completely; running modern inverter systems at a steady temperature often uses less power than cooling a stifling home down from scratch.
Nighttime (Sleeping): Increase the temperature setting to 25°C or 26°C before bed. Your body naturally cools down while sleeping, and Buderim nights often bring a slight drop in outdoor temperature. Many newer air conditioners feature a dedicated "Sleep Mode" that gradually increases the temperature overnight to prevent you from waking up shivering while saving power.

Dealing with Buderim's Summer Humidity

Humidity plays a massive role in how warm a room feels. Buderim often experiences heavy subtropical moisture during the summer wet season, making 24°C feel much warmer than it actually is. If your system feels like it is struggling to keep you comfortable, switch your system over to Dry Mode (often symbolised by a water droplet on your remote). Dry mode removes excess moisture from the air, making the room feel noticeably cooler without constantly running the refrigeration cycle at maximum capacity.

Simple Ways to Boost Efficiency

To help your air conditioner maintain a comfortable 24°C without straining, consider pairing your cooling with smart home habits:

Run ceiling fans simultaneously: Ceiling fans create a wind-chill effect that makes the ambient temperature feel about two degrees cooler, allowing you to comfortably nudge the thermostat up to 25°C or 26°C.
Block out the afternoon sun: Close curtains and external blinds on north- and west-facing windows to stop solar heat from entering your living spaces.
Clean your return air filters: Dust and pet hair build up quickly in summer. Wash or vacuum your filters every two to four weeks to maintain clean airflow and reduce system strain.
Seal your cool air inside: Check weather seals around doors and windows to ensure chilled air stays inside where it belongs.

Keep Your System Running at Peak Performance

If your air conditioner struggles to hit 24°C or your energy bills are unusually high, your unit may be overdue for a routine service. A local Buderim air conditioning technician can inspect refrigerant levels, clean your coils, and ensure your system https://angelojoej833.theglensecret.com/why-your-air-conditioner-keeps-switching-on-and-off is running as efficiently as possible throughout the long Sunshine Coast summer.

Buderim Air Conditioning

Unit 2/106 Burnett St, Buderim QLD 4556

(07) 4158 3332