When planning a vacation, there are many things to consider, including what to pack, where to stay, and what activities to do. However, one important aspect that often gets overlooked is the temperature setting for your air conditioning (AC) system while you’re away. Finding the right temperature can not only help save energy and reduce costs but also ensure the comfort and well-being of your home. In this article, we will explore the best temperature for AC when on vacation, backed by research and expert advice.
The Importance of Setting the Right Temperature
Before diving into the ideal temperature for your AC when on vacation, it’s crucial to understand why it matters. Leaving your AC running at the same temperature as when you’re home can lead to unnecessary energy consumption and higher utility bills. On the other hand, turning off the AC completely can result in a hot and humid environment, potentially causing damage to your furniture, electronics, and even your health.
By finding the optimal temperature for your AC when on vacation, you can strike a balance between energy efficiency and maintaining a comfortable indoor environment. Let’s explore some factors to consider when determining the best temperature:
Climate and Season
The climate and season play a significant role in determining the ideal temperature for your AC when on vacation. If you live in a hot and humid area, setting the temperature too high can lead to excessive moisture buildup, which can promote mold growth and damage your belongings. On the other hand, setting the temperature too low in a cold climate can result in frozen pipes and potential water damage.
It’s important to consider the average temperature during the time you’ll be away and adjust your AC accordingly. For example, if you’re vacationing during the summer in a hot climate, setting the temperature around 80°F (27°C) can help maintain a comfortable indoor environment while minimizing energy consumption.

Energy Efficiency
Energy efficiency is a crucial aspect to consider when setting the temperature for your AC when on vacation. According to the U.S. Department of Energy, raising your thermostat by 7-10°F (4-6°C) for 8 hours a day can save you up to 10% on cooling costs annually.
Based on this recommendation, adjusting your AC to a higher temperature while on vacation can lead to significant energy savings. However, it’s important to strike a balance between energy efficiency and maintaining a comfortable indoor environment. Setting the temperature too high can result in discomfort and potential damage to your home.
Expert Recommendations
Experts in the field of energy efficiency and HVAC systems provide valuable insights into the best temperature for AC when on vacation. The following are some expert recommendations:
- Energy Star suggests setting the temperature to 85°F (29°C) when on vacation for an extended period.
- The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) recommends setting the temperature to 85°F (29°C) or higher to save energy.
- Some HVAC professionals suggest setting the temperature around 80°F (27°C) to maintain a balance between energy efficiency and comfort.
It’s important to note that these recommendations may vary depending on factors such as climate, insulation, and personal preferences. Consulting with a professional HVAC technician can help you determine the best temperature setting for your specific situation.
Additional Tips for Energy Savings
Setting the right temperature for your AC when on vacation is just one aspect of maximizing energy savings. Here are some additional tips to consider:
- Use a programmable thermostat: Investing in a programmable thermostat allows you to set different temperature schedules for different times of the day, ensuring energy efficiency even when you’re not home.
- Seal air leaks: Inspect your home for any air leaks around windows, doors, and vents. Sealing these leaks can prevent cool air from escaping and hot air from entering, reducing the workload on your AC.
- Utilize shades and curtains: Closing blinds, shades, or curtains can help block out sunlight and reduce heat gain, keeping your home cooler.
- Unplug unnecessary electronics: Electronics and appliances continue to draw power even when not in use. Unplugging them before leaving for vacation can help save energy.
Summary
Setting the right temperature for your AC when on vacation is essential for energy efficiency, cost savings, and maintaining a comfortable indoor environment. Factors such as climate, season, and expert recommendations should be considered when determining the ideal temperature. Striking a balance between energy efficiency and comfort is key. Additionally, implementing additional energy-saving tips, such as using a programmable thermostat and sealing air leaks, can further enhance your energy savings. By following these guidelines, you can enjoy your vacation while ensuring your home remains in optimal condition.