National Open an Umbrella Indoors Day

Opening an umbrella indoors is considered bad luck in some cultures and superstitions. The origins of this belief are unclear, but some theories suggest that it may have to do with the fact that umbrellas were originally designed to protect people from the rain and sun outdoors, and opening them indoors was seen as disrespectful to the protective powers of the gods. In some cultures, it is believed that opening an umbrella indoors can bring bad luck, cause a household accident, or even invite death. However, this superstition is not universal and is not shared by everyone. In many parts of the world, people open umbrellas indoors without any concern for superstitions or bad luck. Overall, whether or not opening an umbrella indoors is considered bad luck is a matter of cultural belief and personal superstition. If you want to avoid any potential bad luck, it's best to wait until you are outside to open your umbrella.