Whether your outdoor furniture cushions can stay outside during a drizzle depends heavily on their material and construction. Most standard outdoor cushions are designed to withstand brief, light moisture exposure. A quick drizzle likely won't cause immediate harm, but it's not a risk-free situation. The real danger isn't the water itself, but the lingering moisture that can lead to mold, mildew, and internal damage.
Cushions made with quick-dry foam and breathable, weather-resistant fabrics like Sunbrella can handle a light rain shower better than those with standard polyester filling and covers. However, leaving any cushion consistently damp will shorten its lifespan. For a brief drizzle, you might be fine, but if the rain is persistent or heavy, it's always best to bring them inside or store them in a dry place. A good rule is to never let your cushions get soaked through. If they do get wet, bring them in and allow them to dry completely in the sun before using them again. For ultimate protection, consider using waterproof storage boxes or dedicated furniture covers.