Do clothes dry faster with the window open?

Do Clothes Dry Faster with the Window Open?

Yes, opening a window while drying clothes indoors can actually help them dry faster — but with a few important caveats. The key factor is airflow. When you hang damp laundry inside, moisture evaporates into the air, increasing humidity in the room. Without proper ventilation, that humid air lingers, slowing down drying and potentially encouraging musty smells or even mould growth.

Letting fresh air in by cracking a window helps circulate the air, carrying away moisture and speeding up evaporation. Even better? Pairing an open window with a fan or dehumidifier can make the process even more efficient. Just avoid doing this in cold or rainy weather, as damp, chilly air can have the opposite effect — making clothes take longer to dry and possibly leaving them with a stale odour.

Temperature matters, too. While airflow is helpful, maintaining a reasonably warm room (ideally above 18°C) ensures that moisture evaporates more quickly. So if you’re drying laundry indoors during colder months, keep the heating on a low, steady setting and open the window only briefly to avoid drastic temperature drops.

One thing to be cautious about: leaving windows wide open for long periods, especially in bedrooms or living areas, can create ideal conditions for condensation on cold surfaces — another gateway to mould. A balanced approach works best: short bursts of ventilation, good airflow from fans, and maintaining warmth without overheating.

In short, yes — an open window can help clothes dry faster indoors, but only when used wisely. It’s not just about fresh air; it’s about managing humidity and temperature to keep your home healthy and your laundry dry.