As summer arrives, finding the best room temperature becomes a priority for many to maintain comfort and well-being. Whilst this may depend on your personal preferences, geographical location and energy efficiency considerations, there are standard recommendations for rooms in your home to ensure they are pleasant and safe environments.

The Bedroom

When you are in this room, you will spend the majority of your time in bed under the duvets; therefore, this space doesn’t need to be kept as warm as other rooms throughout your home. If you are like the majority, you won’t enjoy being too hot in the evening; in this case, your ideal temperature will be 15° – 20°.

The Living Room

In the summer, keeping your room around 19° – 22° is likely the best average temperature. This can be achieved with the right cooling methods if the weather causes this space to become naturally hotter. This is where you will likely spend most of your day, so investing more time in achieving the best temperatures for this space will be worthwhile.

The Bathroom

Setting your bathroom thermostat at 22° will ensure a suitable and comfortable environment when you step out of your bath or shower. Nothing is worse than forgetting your towel and walking out into an ice-cold space to grab one. You should also consider that the humidity created by your baths and showers will naturally warm the air, so you don’t need to set the general temperature as high.

What Factors Affect A Comfortable Room Temperature?

Personal Preference

The average room temperature in your home will be highly subjective, as some individuals will prefer a cooler environment while some like to keep things slightly warmer. It is essential to consider how you most feel comfortable when determining what temperature to set your air conditioner to.


Humidity levels play a notable role in your perceived comfort. High humidity can make a room feel hotter, while lower humidity can cause discomfort, leading to dry skin and respiratory issues. Ensuring you balance the levels of humidity in your home can contribute to achieving ideal room temperatures.


During summer, the best room temperature for you can be influenced by where you live. Those who live in hotter, humid regions might find it more suitable to set their air conditioning units to a lower level, whereas residents in milder climates may opt for a moderate temperature for more comfort.

The Building

The materials and insulation used during the construction of your home will affect how it retains and dissipates heat. A well-insulated home will be more likely to maintain a steady and comfortable indoor temperature during summer, while poorly insulated spaces could struggle to regulate the heat. Based on this, you will need to adjust your air conditioning temperatures accordingly for your preferred average room temperature.

Staying Comfortable During Summer Heat

Night Temperatures: As the sun sets, outdoor temperatures will drop, and this should be taken advantage of. Consider raising your thermostat during the night or using fans to circulate the cool air.


Smart Thermostats: Investing in a smart thermostat can be beneficial for adjusting the temperatures of your AC according to your daily routines to find the most ideal room temperature for you. These can be programmed to cool the room before you wake up or return home, which saves energy and ensures you stay comfortable.


Fans: As well as your home air conditioning unit, a fan is a cost-efficient way to improve your comfort during the summer. They will circulate air and create a breeze to make you feel cooler without drastically reducing the temperature of the room. Ceiling fans and table fans are two of the most popular options for this.


Block sunlight: Keeping your curtains shut and blinds closed around the hottest times of the day will block any direct sunlight from making your property hotter. This simple process can significantly reduce your indoor temperatures and prevent your air conditioning system from working over capacity, which prevents the need for regular maintenance and potential repairs.


Optimise Humidity: If you live in a humid region, using a dehumidifier to lower levels of humidity in the air will improve your comfort. On the other hand, if you wish to add more moisture to the air in dryer climates, you can use a humidifier.

Heat-Generating Appliances: Ensuring you switch off or minimise the use of heat-generating appliances like ovens at the hottest times of the day will help to prevent temperatures in your property from getting higher so you can maintain a comfortable room temperature.

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