Best Thermostat Settings for Florida Homes

A lot of thermostat advice floating around online is written for cooler, drier climates and doesn't quite fit Florida. Between the heat and the humidity, a few habits that work fine elsewhere actually waste energy or strain your system here.

A reasonable baseline

For most Florida homes, 76-78°F while you're home and awake is a comfortable, energy-conscious range. Every degree lower generally increases cooling costs measurably, especially during peak summer months when the outdoor-to-indoor temperature difference is already significant.

The setback mistake

In cooler climates, setting the thermostat significantly higher while you're away and letting it recover when you're back is a well-known energy saver. In Florida's humidity, a large setback can let indoor humidity climb while the AC is running less, and then the system has to work harder to pull that humidity back out when you return — sometimes erasing the energy savings and leaving the house feeling clammy in the meantime. A smaller setback (a few degrees, not ten) tends to work better here.

Don't chase fast cooling with a much lower setting

Setting the thermostat to 65°F hoping the house cools faster doesn't actually speed anything up — your system cools at the same rate regardless of the target temperature, so all a drastically low setting does is run the system longer than necessary once it reaches a temperature you'd actually be comfortable at.

Humidity matters as much as temperature

• If your thermostat or a separate humidistat shows indoor humidity consistently above 60%, that's worth addressing even if the temperature feels fine.
• A system that's oversized for the space can cool quickly without running long enough to actually remove much humidity — which is part of why correct sizing matters at installation.
• If you're consistently uncomfortable despite a "good" temperature setting, humidity is often the real issue, not the number on the thermostat.

If your thermostat is old enough that you're not sure it's reading accurately, or it doesn't give you humidity information at all, that's worth addressing directly — an inaccurate thermostat undermines every setting adjustment you make on top of it.