What’s the Best Air Conditioning Setting for Winter?

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Finding the right temperature for your air conditioning can be challenging. You want to be cool enough to be comfortable, but you don’t want your heating system to run all day and night and waste energy. So how can you find the right balance, especially during the nippy winter months?

Base Those Settings on Science

According to research and news reports, the ideal winter night temperature for adults is around 20 degrees Celsius, and for babies, it is between 18 and 22 degrees Celsius. However, the proper bedroom temperature range depends on a few factors, like your room’s location (north-facing rooms tend to be colder), the time of the day, and how often your windows are open.

At night, it is better to not go below 18 degrees Celsius or above 24 degrees Celsius. Nighttime temperatures that are too high can cause difficulty sleeping at night. This, in turn, negatively impacts your health, alertness, and ability to function during the day.

There may be moments when you prefer slightly warmer temperatures, especially if you suffer from aches and pains triggered by cooler air. If so, it is probably best to use an electric blanket while sleeping instead of cranking up your thermostat settings to conserve energy.

A recent Canstar Blue article suggests that the standard air conditioning temperature should be 25 to 27 degrees in the summer and 18 to 20 degrees in winter. This ensures proper cooling and maximum energy efficiency from your air conditioning. 

Remember that these temperatures assume you live in a moderate climate, but as we all know, Australia is a land of many environments. Thus, in Sydney, 25 degrees is best during summer, while 18 degrees is the ideal temperature during winter. For kids, 16 to 20 is the right winter temperature, while 22 to 27 works best for summer.

Know the Benefits

Did you know that getting the correct air conditioning settings provides several benefits? Here are a few you may not have heard of until now:

  • Better Productivity: A well-organised, temperate work area leads to fewer distractions and disruptions when trying to get things done. When temperatures are too high, it becomes challenging to concentrate and be productive.
  • Comfort: You might not realise it, but being too hot or cold can make you feel exhausted or unwell. If you’re feeling achy and getting sick more often, find a comfortable temperature that won’t drain your energy. 
  • Expenses: Your air conditioning will work more efficiently and cost-effectively if you find a comfortable temperature that isn’t too high or low. For instance, setting your AC to 28 degrees on a cold day is tempting, but it will strain the machine and likely lead to an enormous bill at the end of the month. It is best to use the ideal setting, then let the unit adjust the environment’s temperature slowly.
  • Health: Too much humidity can cause air quality problems by promoting mould and mildew growth. Asthma can make breathing difficult if you or someone you care about has the condition.

If humidity is high, people with asthma may have coughing fits, trouble getting enough oxygen, and even get pneumonia.


Contact Roberts Air Conditioning today if you need help finding the proper settings for your unit. We’ve been providing services for air conditioning in Sydney  since 2004, so we know what we’re doing on commercial and residential projects. Get your quote from us right now!