What is the healthiest indoor temperature?

Author: Mittie Willms  |  Last update: Saturday, April 25, 2026

In general, the ideal room temperature and your home for both efficiency and comfort fall somewhere between 68° and 76°F.

What is the best room temperature for the human body?

The ideal ambient temperature for humans indoors typically ranges from 68°F to 72°F (20°C to 22°C). This range is generally comfortable for most people, but individual preferences can vary based on factors such as activity level, clothing, and personal comfort.

Is it healthier to keep your house warm or cold?

Reduced Allergens and Mold: Cooler temperatures can help reduce the growth of mold and dust mites, which thrive in warmer, humid environments. Better Sleep: Many people sleep better in cooler conditions, as a lower body temperature can facilitate deeper sleep.

What is the best room temperature for indoors?

The ideal ambient temperature for humans indoors typically ranges from 68°F to 72°F (20°C to 22°C). This range is generally comfortable for most people, but individual preferences can vary based on factors such as activity level, clothing, and personal comfort.

What indoor temperature is bad for health?

It's important to note that an indoor temperature of less than 16°C increases the risk of asthma and other respiratory conditions while going below 12°C puts the cardiovascular system under stress. A cold home can also increase your risk of depression and confusion.

What is the IDEAL temperature for sleep?

How cold is unhealthy for a house?

The World Health Organization recommends a thermostat setting no lower than 68 degrees while you're home. If you have children or seniors in your house, that number increases to at least 70 degrees. If your house is too cold, it can cause problems with blood pressure and circulation, as well as affect your heart rate.

What is the ideal temperature to sleep?

The best room temperature for sleep is approximately 65 degrees Fahrenheit (18.3 degrees Celsius). This may vary by a few degrees from person to person, but most doctors recommend keeping the thermostat set between 65 to 68 degrees Fahrenheit (15.6 to 20 degrees Celsius) for the most comfortable sleep.

What temperature should your house be overnight?

To create that sleep-worthy environment, bedroom temperature should be kept at a consistent 17 degrees Celsius during the night, or at a minimum a few degrees colder than in the daytime.

What is the best temperature for coffee?

Drinking Between 120 and 140°F: Taste the Flavors

Coffee's notes shine between 120°F and 140°F, which is why we prefer this temperature. The subtle flavors noted by the roaster will come out within this range, creating a delightful cup.

What is the healthiest temperature for a house?

Energy.gov suggests that 68 degrees is a good room temperature while you're awake at home but recommends lowering it while you're asleep or away.

Can a cold house cause mold?

Condensation, damp and mould

Colder homes often have more problems with damp and mould. Damp can also cause deterioration of the building, making it harder and more expensive to repair.

Is 57 too cold for a house?

As far as the normal hours of the day when everyone is awake and active in the home, we do recommend the WHO's guideline of 64 degrees (F) as a minimum. Being in a house for long periods of time that is constantly chilly can have negative health effects.

What is the perfect temperature for AC?

78°F is generally considered a comfortable temperature for most people in a house, especially in warmer months.

What is the ideal temperature for a living room?

The best room temperature for your living room

Most people find the ideal temperature in the living room to be between 19 and 22 degrees. Others believe 'the warmer the better', of course keeping in mind that every degree will also be seen on the bill. Preferably, do not heat to more than 20 or 21 degrees.

What is an unhealthy room temperature?

It's advisable to keep your home below 80 degrees throughout the summer. A house that's too warm can be dangerous to people, pets, and the soft surfaces in your home. Set the winter temperature to 68 degrees when you're awake and 62 degrees when you're sleeping.

What temperature should your house be to prevent mold?

A room temperature of 18 – 22 ° C and a relative humidity of 40% – 60% is perceived by most people as pleasant and it is also ideal for the fabric of the building. Check the values in the living room and bedrooms regularly to reduce the risk of mould.

What temperature should a fridge be?

For the fridge compartment, we recommend maintaining a temperature between 3°C to 5°C to slow bacterial growth and preserve perishable items effectively. Similarly, for the freezer compartment, it is best to set the temperature at -18°C or lower to freeze food solid and maintain its quality over longer periods.

What is a comfortable indoor temperature?

In general, the ideal room temperature and your home for both efficiency and comfort fall somewhere between 68° and 76°F. What should the average room temperature be in winter? In the winter, you might choose to keep your thermostat set lower around 68° in order to save energy and dollars on your next heating bill.

Is it healthy to sleep naked?

Some research suggests that sleeping naked can promote better sleep, leading to various mental and physical health benefits. By encouraging core body temperature regulation, naked sleeping may help support reproductive function, skin health, cortisol levels, metabolic control, and more.

Is it better to sleep with socks on or off?

Wearing socks to bed may help you fall asleep faster and stay asleep longer, so it could become an important part of your sleep hygiene routine. Sleep hygiene refers to the habits, behaviors, and environmental factors present during our bedtime routine.

What is the lowest safe indoor temperature?

The World Health Organization (WHO) recommends indoor temperatures of at least 64°F (you can drop that down to 62°F at night if you're really looking to save on your heating bill).

What is a comfortable room temperature for the elderly?

What Is the Ideal Room Temperature for an Elderly Person? Research has shown that the average and safe room temperature for older adults is around 78 degrees. To prevent an elderly adult from becoming too cold, it is recommended that the room temperature never falls below 65 degrees.

How hot is unsafe indoors?

CALIFORNIA OCCUPATIONAL SAFETY AND HEALTH STANDARDS BOARD

Heat Illness Prevention in Indoor Places of Employment. (a) Scope and Application. (1) This section applies to all indoor work areas where the temperature equals or exceeds 82 degrees Fahrenheit when employees are present.

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