Can Lawn Mowers Get Wet?

September 13, 2023 by Marjorie R. Rogers, MA (English), Certified Consultant

Lawn mowers should not be exposed to water as it can damage their internal components. Lawn mowers are essential tools used for maintaining lawns and keeping them neat and tidy.

However, just like any other machine, they are susceptible to damage, especially when exposed to water. Water can seep into the motor and electrical components, causing them to rust or short-circuit. This can lead to costly repairs or even render the lawn mower useless.

Additionally, wet grass can clump and clog the mower’s blades, affecting its performance. Therefore, it is crucial to protect your lawn mower from getting wet, either by storing it in a dry place or covering it with a waterproof tarp. Taking these precautions will help ensure your lawn mower remains in good working condition and extends its lifespan.

The Risks Of Exposing Lawn Mowers To Water

Lawn mowers should not be exposed to water due to the risk of damage, including electrical failure and engine malfunction. Wet conditions can also lead to rust and corrosion, reducing the lifespan of your equipment. Keep your lawn mower protected to ensure its longevity and proper functioning.

Lawn mowers are essential tools for maintaining a well-manicured lawn, but have you ever wondered if they can withstand exposure to water? We will delve into the potential damages caused by water on lawn mowers and explore how different components are affected.

Additionally, we will highlight common issues that may arise from getting wet and share preventive measures to keep your lawn mower in optimal condition. Let’s start by discussing the risks associated with water exposure.

The Potential Damages Of Water Exposure:

When lawn mowers encounter moisture, such as rain or sprinkler water, several significant risks can arise. Here are the main damages that can occur:

  • Corrosion: Water acts as a catalyst for rusting, leading to corrosion on metal components of the lawn mower.
  • Electrical damage: Water and electricity do not mix well. Exposing the electrical elements of your lawn mower to water can result in short circuits or even permanent damage.
  • Mold and mildew: Moisture buildup within the engine or other enclosed areas creates an ideal environment for mold and mildew growth, which can impair the mower’s performance.
  • Engine damage: Water entering the engine cylinder can cause hydrolock, which can lead to severe damage to the motor.

How Water Affects The Different Components Of A Lawn Mower:

Water can impact various components of a lawn mower differently. Here’s a breakdown of how each part can be affected:

  • Blades: Wet grass clippings tend to clump together, causing strain on the blades and reducing their effectiveness.
  • Engine: Water in the engine can interfere with combustion, potentially damaging the piston and cylinder.
  • Spark plug: Wet spark plugs may fail to ignite the fuel-air mixture properly, resulting in engine misfires or failure to start.
  • Air filter: Moisture can saturate the air filter, impeding airflow and reducing engine performance.
  • Belts and pulleys: Wet conditions can cause belts to slip and pulleys to rust, leading to poor transmission of power between different mower components.

Common Issues Caused By Getting Wet And How To Prevent Them:

Getting your lawn mower wet can lead to several problems, but by taking preventive measures, you can reduce the risk of damage. Here are the common issues and tips to prevent them:

  • Difficulty starting: To avoid starting issues, store your lawn mower in a dry area and cover it with a waterproof tarp when not in use.
  • Rust development: Regularly inspect your lawn mower for signs of rust and apply an appropriate rust inhibitor or lubricant to prevent corrosion.
  • Electrical failures: Ensure all electrical connections are properly sealed and shielded from water. If you anticipate rain, consider using a waterproof cover designed specifically for your mower model.
  • Moisture buildup: After mowing wet grass, remove the clumps and residue from the underside of the mower to minimize moisture accumulation and prevent mold or mildew growth.
  • Hydrolock prevention: Never use a lawn mower in excessively wet or flooded areas, as it increases the likelihood of water entering the engine. Be cautious when mowing in wet conditions, especially if the grass is overly saturated.

By understanding the risks associated with water exposure and taking proactive measures, you can protect your lawn mower from potential damages. Remember to always prioritize the maintenance and care of your equipment to ensure its longevity and optimal performance.

Factors That Determine A Lawn Mower’S Tolerance For Water

The ability of a lawn mower to withstand water depends on various factors such as its design, construction, and level of water resistance. These factors determine the mower’s tolerance for water and whether it can safely operate in wet conditions.

Variations In Water Resistance Among Different Types Of Lawn Mowers

  • Riding lawn mowers: These mowers tend to have better water resistance due to their enclosed engines and sealed electrical components. However, it is still important to exercise caution as excessive exposure to water can cause damage.
  • Push mowers: Generally, push mowers are less water-resistant compared to riding mowers. Their open design and exposed electrical components make them more susceptible to water damage.
  • Electric mowers: Electric mowers often come with a higher degree of water resistance due to their sealed electrical systems and absence of fuel components. However, they may still have limitations, so it’s essential to refer to the manufacturer’s guidelines.
  • Gas-powered mowers: Gas mowers typically have less tolerance for water due to their combustion engines and fuel compartments. These components can be negatively affected by water exposure, making it crucial to protect them from moisture.

Features And Technologies That Make A Lawn Mower Waterproof

  • Waterproof housing: Lawn mowers with a sealed housing provide protection against water intrusion, safeguarding the internal components from moisture damage.
  • Sealed electrical connections: Lawn mowers with sealed electrical connections ensure that the wiring and electrical connectors are protected from water, reducing the risk of short circuits and electrical failures.
  • Corrosion-resistant materials: Mowers constructed with corrosion-resistant materials such as stainless steel or treated aluminum offer greater durability and resistance to water damage.
  • Water drain systems: Some lawn mowers feature specialized water drain systems, allowing any water that enters the housing to be safely expelled, preventing accumulation and potential damage.
  • IP (Ingress Protection) rating: Check for an IP rating on the lawn mower. This rating indicates the level of protection against solid particles and liquids. Higher IP ratings (e.g., IPX4 or IPX5) suggest better water resistance.

Identifying The Suitable Waterproofing Level For Your Specific Lawn Mower

  • Read the manufacturer’s guidelines: Always consult the owner’s manual or documentation provided by the manufacturer. They will specify the mower’s water resistance capabilities and recommended usage in wet conditions.
  • Assess your mowing needs: Consider the typical conditions you mow in. If your lawn regularly receives heavy rainfall or requires frequent watering, you may want to prioritize a lawn mower with higher water resistance.
  • Evaluate your storage options: A lawn mower that can be stored indoors or in a covered area when not in use may require less water resistance than one that is consistently exposed to the elements.
  • Budget and investment: Higher water resistance often comes with a higher price tag. Assess your budget and determine the level of water resistance necessary based on your specific needs.
  • Maintenance and care: Proper maintenance, including regular cleaning and drying of the mower after use in wet conditions, can help prolong its lifespan and maximize its water resistance.

Remember, while some lawn mowers are more water-resistant than others, it is crucial to exercise caution and avoid excessive exposure to water whenever possible. Understanding your specific mower’s features and limitations will help you make informed decisions to protect it from water damage.

How To Protect Your Lawn Mower From Water Damage

Lawn mowers can indeed get wet, but it’s important to protect them from water damage. Here are some tips to safeguard your equipment and keep it running smoothly in any weather.

We all know that water and electronics don’t mix well, and lawn mowers are no exception. If you’ve ever wondered whether lawn mowers can get wet, the answer is yes, they can. However, exposure to water can lead to serious damage and costly repairs.

Here are some tips to help you protect your lawn mower from water damage:

Tips For Storing Your Lawn Mower In Wet Weather:

  • Find a covered storage area: Look for a dry and sheltered place to store your lawn mower during wet weather. This could be in a garage, shed, or covered patio.
  • Use a waterproof cover: Invest in a high-quality waterproof cover to protect your lawn mower from rain or snow. Make sure the cover fits securely and doesn’t allow water to seep in.
  • Elevate the mower: If you’re storing your lawn mower on the ground, consider placing it on a sturdy platform or pallet to prevent water from seeping into the engine or other delicate parts.
  • Remove the battery: If your lawn mower has a removable battery, take it out and store it separately in a dry location.

Proper Maintenance Practices To Prevent Water-Related Issues:

  • Clean after use: After mowing your lawn, make it a habit to clean your mower thoroughly to remove any grass clippings, mud, or debris. This prevents moisture build-up that could lead to rust or corrosion.
  • Dry before storing: Before putting your lawn mower away, ensure that it is completely dry. Use a towel or air compressor to remove any moisture on the surface and in hard-to-reach areas.
  • Regularly inspect for leaks: Check your lawn mower for signs of leaks, such as oil or fuel dripping. Address any leaks promptly to prevent potential water damage.

Do’S And Don’Ts When Using A Lawn Mower In Damp Conditions:

  • Do mow on dry grass: Ideally, mow your lawn when the grass is dry to minimize moisture exposure to the mower.
  • Don’t spray water directly: Avoid spraying water directly on your lawn mower to clean it, as this can damage the electrical components and contribute to water-related issues.
  • Do mow on higher settings: Raising the cutting height of your lawn mower during damp conditions will help prevent clogging and minimize contact with wet grass.
  • Don’t store wet grass clippings: Dispose of wet grass clippings separately instead of leaving them in the mower’s bag. Wet clippings can lead to mold growth and cause damage to the mower.

By following these tips and taking preventative measures, you can keep your lawn mower protected from water damage and ensure its longevity. Remember, a little extra care goes a long way in preserving your equipment investment.

Can Lawn Mowers Get Wet?


Frequently Asked Questions On Can Lawn Mowers Get Wet?

Can A Lawn Mower Be Left In The Rain?

No, leaving a lawn mower in the rain is not recommended as it can cause damage and decrease its lifespan.

Can Water Ruin A Lawn Mower?

Water can potentially ruin a lawn mower if it enters the engine or causes rusting.

Is It Ok To Leave A Lawn Mower Outside?

Leaving a lawn mower outside is not recommended as it can get damaged due to weather conditions.

Can Cutting Wet Grass Mess Up A Lawn Mower?

Cutting wet grass can potentially damage a lawn mower due to clogging, clumping, or causing excessive stress.

Can I Mow Wet Grass With A Lawn Mower?

Mowing wet grass can lead to clumping, uneven cutting, and damage to your lawn mower’s engine.


So, can lawn mowers get wet? The answer is yes, but precautions must be taken. Lawn mowers are designed to withstand some moisture, but they should not be fully submerged in water. Excessive exposure to rain or other sources of water can cause damage to the engine, electrical components, and cutting blades.

It is important to keep your lawn mower protected from water when not in use and to avoid mowing wet grass if possible. If you do have to mow wet grass, be sure to clean and dry the mower thoroughly afterward to prevent rust and other issues.

Regular maintenance and proper storage can help extend the lifespan of your lawn mower and ensure it continues to perform at its best. So, while lawn mowers can handle some moisture, it is best to be cautious to avoid any potential damage.

About Author (Marjorie R. Rogers)

The inspiring mum of 6 who dedicates her time to supporting others. While battling with her own demons she continues to be the voice for others unable to speak out. Mental illness almost destroyed her, yet here she is fighting back and teaching you all the things she has learned along the way. Get Started To Read …