Yes, you can paint the inside of your house in the winter. There are even some benefits to doing so. Because there’s less humidity, you can expect a faster dry time, and because it’s off-season, you may find that painters have more availability. You still need to ventilate your home to help the paint dry and keep everyone safe from paint fumes. If it’s too cold to open your windows, opt for fans, dehumidifiers, and paint with low or no volatile organic compounds (VOC).