Wicker is made from interwoven wooden reeds that deteriorate when saturated with water. Infrequent light rain or slight splashing from a hose or swimming pool does not damage wicker furniture as long as, it can dry out. You can waterproof wicker furniture to protect it from water-induced deterioration.

Can wicker be left out in the rain?

Natural wicker is not intended to be used outdoors and no amount of “water-proofing” spray-on's will protect natural wicker from the sun, moisture, mold, and mildew. If you want to use wicker furniture outside, it has to be resin wicker.

Does wicker furniture need to be covered in the rain?

Natural wicker is more susceptible to damage from rain, moisture, and the sun. ... Even though it has a coating on it, you should still cover it in the winter so that any snow or ice doesn't weigh the furniture down and cause the wicker to splinter.