z wrote:

it sounds like you live in a wettish state, where it might help. As
everybody says, you will be exchanging cooler and wetter for warmer and
dryer, and they are expensive to run, but particularly at night might
feel less sticky...

A dehumidifier might help in an airtight house with no insulation
in a place like Florida, when outdoor and indoor air temps are
about the same but outdoor air is more humid, but an air conditioner
would help more, with dehumidification plus indoor cooling vs heating.

Nick