
An air compressor is crucial if you are performing tasks with power tools and pneumatic equipment. Different types of air compressors vary in size, portability, and price. Many people ask whether or not they can use their air compressor outdoors while it is raining or when the weather conditions change abruptly. In this guide, we will discuss whether an air compressor can get rained on, the risks associated with doing so, and how to properly maintain your compressor so it can withstand various weather elements.
Can an Air Compressor Get Rained On?
It’s important to know whether or not an air compressor can get rained on because it is a delicate piece of machinery. It is generally best to avoid any moisture or direct water contact when using an air compressor. Rain will not cause immediate damage to the unit, but the combination of humidity and rain could lead to equipment failure over time.
Rain and any type of moisture present in the external environment can cause condensation inside the motor chamber if inadequate ventilation exists. This excess moisture can corrode internal components and decrease efficiency over time. In addition, rain/humidity has been known to affect the lubrication of piston rods and various seals, which can compromise performance.
When working outdoors with an air compressor, it is wise to seek shelter during adverse weather conditions to prolong its life cycle. If you need to use your air compressor in areas prone to rainfall or humidity, then be sure that it has access to incorporate adequate ventilation so that condensation doesn’t form internally. Regular inspection and maintenance will also help keep your air compressor functioning properly for years to come.
Potential Issues That Can Occur When an Air Compressor Gets Rained On

When operating an air compressor outdoors, it may be exposed to the elements, including rain or other forms of water. Getting rained on can cause issues with the air compressor, such as corrosion, rust, and moisture in the air.
Rusting and Corrosion
When an air compressor is exposed to elements such as heavy rains or snow, it can experience rusting and corrosion. Rusting is caused by damage to the steel or iron parts of the compressor and is primarily due to a lack of protection from the elements.
Corrosion happens when water and other substances interact with a component, like rust particles or other metallic elements in the air. This can cause chemical changes in the metal that can weaken it over time and stress certain air compressor components.
Aside from causing cosmetic damage, water and precipitation can cause electrical components, such as spark plugs and wiring connections, to corrode. This corrosion can disrupt the proper functioning of those electrical components, leading to expensive repairs or replacements to restore them to proper working order.
Additionally, rainwater can reduce an air compressor’s performance levels through clogging or malfunctions within its supply hose, pressure regulator, pipes, and hoses due to water immersion and possible debris caught within its system after exposure outdoors.
To minimize any potential issues caused by rainwater or other outdoor weather elements on an air compressor, it is best practice for users of these machines to cover them when not in use or keep them indoors whenever possible.
Electrical Issues

Several potential issues may occur when an air compressor is exposed to rain or other forms of moisture. Most air compressors are powered by electricity, and rain can present an issue for electrical components such as wiring and switches.
As rain passes over or through these electrical parts, it can create a type of corrosion that damages the metal of the component and the insulation on any wires. This corrosion can leave areas vulnerable to short circuits, which increases the chance of electric shock or, worse, a fire hazard.
Additionally, suppose water accumulates in any area near an outlet or switch. In that case, it will eventually work its way, which could cause severe damage to parts such as circuit boards.
Humid conditions can leave a compressor prone to permanent failure after prolonged exposure due to prolonged moisture contact with certain parts like motors. Suppose your air compressor has been exposed to water or other moisture contamination. In that case, you must clean up any residue immediately and have a professional inspect your device for any further damages or potential risks before reusing it.
Water Damage
Getting the air compressor wet can have several unpleasant consequences. One of the most common effects is water damage to the electrical components. If the compressor’s electrical system isn’t sealed, rainwater or moist air can seep into its open spaces. Once inside, it can cause rust and corrosion, leading to a lack of performance and potential safety hazards.
The air filters and other parts inside the system can also take on moisture if they’re not properly sealed or adequately protected from moisture exposure. This water exposure can lead to problems with airflow and increased strain on the motor when attempting to run, with reduced performance due to clogged filters and puddles inside the chamber.
As an added consequence, this extra strain can lead to premature aging of your equipment, and more frequent maintenance needs to keep it running efficiently.
Tips for Protecting Your Air Compressor from Rain

It’s important to protect your air compressor from the elements, especially when it comes to rain. Rain can cause damage to the components of your compressor and can lead to costly repairs. To ensure that your air compressor is properly protected, you can follow a few tips. This section will discuss how to properly protect your air compressor from rain.
Use a Cover
Using a cover for your air compressor is one of the most effective ways to protect it from rain. Several types of covers are designed specifically for air compressors, making them easy to use.
Choose a waterproof or water-resistant cover if you have an outdoor air compressor. This type of cover will protect against rain, snow, dust, and dirt while keeping your compressor looking new. You can also buy covers specifically designed for indoor air compressors, protecting against dust and other pollutants. Using a cover will help keep your air compressor working at peak efficiency and extend its life.
Place the Air Compressor in a Shed or Garage
Wherever possible, it is best to keep your air compressor inside a shed or garage. This is the best protection from rain and other outdoor elements like wind and sunshine. For those who don’t have a shed available, an airtight storage container can protect the compressor from moisture and humidity.
When picking a container, make sure that you choose one with ample ventilation so that the air compressor can breathe while in use. Additionally, be sure that the container you choose has enough room for all your accessories, such as hoses and cords. By following these steps, you can ensure that your air compressor remains in good condition and safe from damage caused by rain.
Use a Waterproof Sealant

Protecting an air compressor from rain starts with the installation process. When installing your air compressor, ensure it is insulated or covered with waterproof material. If it is not already covered enough, use a waterproof sealant or tarp to protect the pressure tank from any moisture that could enter while you are storing it outdoors.
Additionally, During the installation process, ensure all electrical joints are sealed with heat shrink tubing and terminals are fitted with protective covers where necessary – this will provide extra protection against rainwater and flooding.
If you have selected a location near a water source (such as a pool or pond), ensure your installation space has adequate drainage if water levels rise unexpectedly. No matter what precautions you may take above ground level, keep in mind to always seal your air compressor at its base – this can help prevent any moisture from seeping through at ground level and corroding the system over time.
Conclusion
In conclusion, it is generally not recommended to allow an air compressor to be exposed to rain. Water can enter through the seals and damage electrical components, leading to failure or malfunction.
Additionally, moisture in the air can cause corrosion and rust inside the unit’s housing over time. To ensure your safety and prolong the life of your air compressor, it is best to keep it stored indoors or in a covered outdoor area when not in use, such as a garage or shed, for additional protection from moisture and debris.