Best Thermostat Settings for a Hot, Humid Summer
Many guidelines suggest around 78 degrees when you are home. Keep the fan on Auto for better humidity control.
The right settings keep you comfortable without driving up your bill or leaving the house sticky.
Pick a reasonable setpoint
Many energy guidelines suggest around 78 degrees when you are home in summer. Adjust a degree or two for comfort.
Avoid extreme setbacks in humid weather
Letting the house get very hot and then forcing a rapid cooldown can leave moisture behind. Smaller adjustments often work better here.
Fan on Auto
In most homes, Auto allows the coil to drain properly. Leaving the fan on can push moisture back into the air.
Use schedules or a smart thermostat carefully
A programmed schedule can help, but make sure it is compatible with your equipment. Communicating and variable-speed systems often need matched controls.
When the thermostat is not the problem
If rooms are uneven or the house feels damp, the cause may be ducts, sizing or equipment.
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