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While it sounds like a classic myth passed down through generations, safety agencies—including the CDC and the National Weather Service—explicitly confirm that you should avoid showering, bathing, or washing dishes during a thunderstorm.
Why Showering in a Storm Is Dangerous
Metal Plumbing Conducts Electricity:
Most older homes use modern or legacy copper, steel, or metal plumbing. If lightning strikes a home or utility line nearby, the electrical charge can easily travel through the underground pipes into your bathroom.
Water Conducts Impurities:
Tap water contains minerals and dissolved solids that readily conduct electricity. Standing under running water while grounded inside a shower enclosure creates a direct path for electrical current.
Flexible Hose Lines Contain Metal:
Even flexible handheld shower heads often feature metal braiding, providing another conductive channel right next to your body.
Simple Indoor Lightning Safety Rules
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Wait Out the Storm: Delay taking a shower, soaking in the tub, or washing dishes until at least 30 minutes after the last rumble of thunder.
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Avoid Corded Electronics: Stay off corded landline phones, desktop computers, and appliances directly plugged into wall outlets.
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Avoid Concrete Walls & Floors: Concrete structures often contain internal metal mesh or rebar that can carry electrical charges.