No, it is not safe to shower during a thunderstorm. Lightning can travel through your home’s plumbing, and water conducts electricity well enough to deliver a serious or fatal shock. The National Weather Service, CDC, and NOAA all explicitly recommend avoiding showers, baths, and dishwashing while a storm is nearby.
How Lightning Reaches Your Shower
Lightning enters buildings in three ways: a direct strike to the roof or structure, through wires or pipes that extend outside, or through the ground. Once lightning hits a building, it doesn’t just stay at the point of impact. The electrical current travels along the paths of least resistance, which include your home’s electrical wiring, phone lines, and plumbing.
Metal pipes are excellent conductors, so homes with copper plumbing carry the most risk. But even homes with plastic (PVC) pipes aren’t fully safe. Water itself conducts electricity, and most plumbing systems still contain metal components at connection points, fixtures, or where pipes meet the water main. If lightning current enters any part of that system, it can reach your faucet or showerhead.
How Often It Actually Happens
Indoor lightning injuries from water-related activities are rare but real. A 2023 systematic review of lightning casualty data found 30 reports of people injured by lightning while showering, washing dishes, or doing other water-related activities indoors, accounting for about 0.7% of all lightning injuries in the dataset. Two people in the dataset died from indoor water-related lightning strikes, representing 0.1% of all lightning deaths.
Those percentages sound small, but they reflect a risk that is entirely avoidable. A shower typically lasts 10 to 15 minutes. Waiting out a storm before stepping in costs you nothing.
What Official Guidelines Say
Every major safety authority in the United States gives the same advice. The CDC states plainly: “Do NOT bathe, shower, wash dishes, or have any other contact with water during a thunderstorm because lightning can travel through a building’s plumbing.” NOAA adds that both water and metal are good conductors of electricity, making showers and baths a specific concern. The National Weather Service’s indoor safety page lists “avoid plumbing” as a core precaution alongside staying away from electrical outlets and corded phones.
The 30-Minute Rule
The standard recommendation is to wait at least 30 minutes after the last sound of thunder before resuming normal activity, including using plumbing. Thunder can be heard roughly 10 miles from a lightning strike, and storms can produce dangerous bolts even as they appear to be moving away. If you hear another rumble, reset the 30-minute clock.
This means if a storm rolls through at 7:00 p.m. and you hear the last thunder at 7:45, you should wait until at least 8:15 before showering.
Other Indoor Risks During Storms
Plumbing isn’t the only conduction path to watch for. The CDC warns against lying on concrete floors or leaning against concrete walls during a thunderstorm. Concrete often contains metal rebar or wire mesh that can carry lightning current. This is especially relevant in basements, garages, and ground-floor rooms built on a concrete slab.
You should also avoid contact with anything plugged into an electrical outlet, corded landline phones, and metal window or door frames. Cordless phones, laptops running on battery power, and cell phones are all safe to use since they have no physical connection to your home’s wiring.
What You Can Safely Do Indoors
A well-enclosed building with wiring and plumbing (a typical house, apartment, or office) is one of the safest places to be during a thunderstorm, as long as you avoid the conduction paths. You can sit on furniture, use your phone, watch TV if it’s not connected to an external antenna, and go about your day. Just stay away from running water, electrical outlets, and concrete surfaces until the storm has passed and 30 minutes of silence have gone by.
If you were about to hop in the shower and hear thunder, the simplest move is to wait it out. Most thunderstorms pass within 30 to 60 minutes. Your shower can wait.