Can you run a generator in the rain?
Storms are exactly when you need backup power, but heavy rain and electricity are a risky mix.
This guide covers what to consider before running a generator in wet conditions and safer ways to keep it protected.
Why rain and generators don't mix
Generators produce electricity, and water is an excellent conductor. Exposing outlets, extension cord plugs, or the generator's electrical components to rain dramatically increases the risk of shock or equipment damage.
Safer ways to use a generator in wet weather
- Use a purpose-built generator tent or cover that allows ventilation but shields from rain.
- Place the generator on a solid, level surface where water doesn't pool.
- Keep all connections and cords off the ground where possible.
What not to do
Never move a running generator into a garage, enclosed porch, or inside your home to avoid rain—that introduces carbon monoxide risk, which is far more dangerous than getting wet equipment.
Tip: you can always use the calculators on the GeneratorCalc home page to turn these ideas into rough numbers for your specific generator and situation.