When storms hit, protecting your generator from rain is critical for safety and reliability. Grounded Electric has decades of experience helping homeowners and businesses keep equipment safe during power outages. With experts like Robert “Bobby” Mulholland and Barret Abramow, you can count on trusted advice backed by experience.
Key Takeaways
- Generators are not waterproof, and running them in rain or snow without protection can cause electric shocks or water damage.
- Using purpose-built covers, enclosures, or rain protectors is the safest way to keep a generator operational during wet weather.
- DIY covers and smart placement, such as raised platforms or partial shelter, can help protect portable generators if proper ventilation is maintained.
- Avoid using tarps or makeshift covers, as they block airflow and create fire and safety risks when running a generator in the rain.
- Regular inspections for water damage, combined with checking insurance or warranty coverage, ensure long-term safety and financial protection. If you are preparing for storm season, choosing the best generator for hurricane season can provide reliable backup power when you need it most.
Can You Run a Generator in the Rain?
Risks When a Generator Gets Wet
Generators and water are a dangerous mix. If a generator gets wet, it raises the risk of electric shocks, short circuits, or permanent water damage. Heavy rain or snow can compromise performance and safety.
Safe Use Guidelines for Wet Weather
So, can you run a generator in the rain? Yes, but only with proper protection. A generator cover or enclosure blocks moisture while allowing ventilation. Always place the unit on stable, elevated ground away from water.
Best Ways to Cover and Protect a Generator
Tent-style canopies shield generators and allow safe use in rain. Rigid enclosures are durable, while fabric covers only work in light conditions. These examples help you choose the right option.

Weatherproof Covers and Enclosures
Knowing how to cover a generator in the rain starts with selecting durable protection. Weatherproof covers and enclosures shield portable generators from heavy rain, snow, and extreme weather. Standby generators often use permanent enclosures to keep the generator operational year-round.
Different generator cover options have unique advantages:
- Rigid Enclosures – Secure, long-lasting, higher cost.
- Tent-Style Canopies – Portable, affordable, safe in rain.
- Fabric Covers – Lightweight, only for dust or light rain.
- DIY Covers – Cheap, but must allow ventilation.

Placement Tips for Wet Conditions
Even the best generator cover needs proper placement. Keep the unit on a flat surface under partial shelter, such as a roof overhang. Avoid enclosed space setups that trap fumes.
Generators face more than rain. Snow can block ventilation, and strong wind can drive rain into outlets. By learning how to keep a generator dry in the rain, you ensure your backup power source remains reliable in all extreme weather.
Running a Generator in Wet Conditions
Are Generators Waterproof by Design?
A common question is: Are generators waterproof? The answer is no. Outlets, wiring, and engines are exposed, making them vulnerable to rain, snow, or storms.
Can Generators Be Used in the Rain Safely?
Yes, but only if operated correctly. Whether you can operate a generator in the rain depends on using certified covers and ensuring ventilation. Barrett Abramow, Grounded Electric’s project manager, emphasizes that protection is as important as wiring.
Camping and Outdoor Protection Tips
When protecting your generator from rain while camping, lightweight tents or enclosures are the best option. Place the unit downwind and away from tents or RVs. This keeps a portable generator safe and ensures access to a backup power source.
Common Mistakes to Avoid
Is It Safe to Put a Tarp Over a Generator?
Covering a generator with a tarp while running in the rain may seem practical, but it is unsafe. Tarps trap heat, block airflow, and create fire risks.
Why Tarps and Makeshift Covers Fail
Tarps, cardboard, or plastic sheets fail in heavy rain or wind. They lack ventilation and may collapse into the generator. Always use purpose-built covers for running in the rain.
For safe operation, remember these quick tips:
- Never use tarps or plastic sheets as covers.
- Ensure ventilation whenever running generator equipment.
- Keep the generator on elevated, dry ground.
- Use certified covers for rain or snow.
Maintenance After Exposure to Rain
Inspecting for Water Damage
After running a generator in the rain, check for water damage. Inspect outlets, plugs, and the frame for corrosion or moisture. Allow the generator to dry fully before starting again.
Keeping Electrical Connections Dry
Apply protective covers on plugs and cords, and store extension cords in dry containers. Bobby Mulholland, Grounded Electric’s licensed head electrician, advises checking connections before you run your generator to ensure they remain safe.
Generator Rain Protection
Learning how to protect your generator from rain ensures long-term performance and family safety.
By using proper generator covers, avoiding unsafe makeshift options, and checking for water damage, you reduce risks and extend the lifespan of your backup power source.
With guidance from Grounded Electric and trusted professionals like Barret Abramow and Bobby Mulholland, homeowners and businesses can stay prepared in all weather conditions. Call Grounded Electric today for expert assistance.