Written by 11:53 am Guides, Pressure Washing

Can You Pressure Wash In The Rain

can you pressure wash in the rain

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Pressure washing is a popular and effective way to clean roads, sidewalks, decks, and the outside of buildings, among other things. When planning a pressure cleaning job, it is important to think about the weather to get the best results and keep everyone safe. Often, people want to know if they can pressure wash in the rain.

The short answer is, Yes you can.

However you will need to take some precautions to ensure that your equipment and the surface you are cleaning doesn’t get damaged. 

How Weather Affects Pressure Washing

The pressure washing process can be affected in different ways by different kinds of weather, including light rain, strong rain, thunderstorms, snow, or ice.

Light Rain

Light rain is not too bad for pressure cleaning, and it might even be helpful in some ways. Rain’s natural rinsing action can help wash away dirt and debris, making cleaning easier.

But it is important to take the right safety steps, like wearing shoes that will not slip and making sure the electricity is safe, to lower the risk of accidents.

Heavy Rain

When it rains a lot, it can be harder and less effective to use a pressure washer.

  • The increased amount of water can dilute cleaning solutions, reducing their effectiveness and making it harder to remove stubborn dirt and grime.
  • Heavy rain can also make it hard to see

In these conditions, it might be best to wait until the weather gets better to do your pressure washing job.


Pressure washing during a storm is not a good idea because accidents and electrical dangers are more likely to happen. Lightning can be very dangerous, especially if you are working with electricity or water.

It’s crucial to prioritize safety and wait for the storm to pass before resuming any pressure washing tasks.

Snow and Ice

When there is snow or ice, it can be hard and even dangerous to use a pressure washer.

  • Snow and ice can make areas slippery, which makes it more likely that someone will slip and fall or get hurt.
  • Water in your pressure washer can freeze, which can damage the machine

In these situations, it is best to wait for better weather or use other methods, like ice melt or a snow shovel, to get rid of snow and ice before pressure washing.

Extremely Sunny

Extreme heat and sunny weather can have a significant impact on the pressure washing process, often making it more challenging and less efficient.

  • Water evaporates quickly thus using more water
  • Takes longer to clean
  • The cleaning solution also dries up too fast on the surface, leaving streaks or uneven cleaning results.
  • Cleaning products can be less effective on hot surfaces because they evaporate quickly and cannot break down dirt and grime
  • It is uncomfortable to work in very hot weather

Why Professionals Prefer Cloudy or Light Drizzle for Pressure Washing

Light drizzle can enhance the visibility

Even though it might seem strange, many professional pressure washing companies like to work when it is cloudy or drizzling.

There are a few reasons for this choice, which can lead to better cleaning results that take less time and effort.

Consistent surface wetness

One of the main reasons why professionals like cloudy or light rainy weather is that it helps keep the surface wet throughout the cleaning process.

This even amount of moisture can make cleaning solutions work better by letting them get deeper into dirt and grime.

The wetness prevents the cleaning solution from drying quickly on the surface. This can cause streaking or uneven cleaning results.

Reduced water evaporation

When it is hot and sunny, water may evaporate quickly, which makes it harder to keep surfaces wet while pressure washing.

This can result in the need for more frequent applications of water and cleaning solution, which can slow down the cleaning process and increase water usage.

The amount of water that evaporates in cloudy or light wet weather decreases, which helps professionals work faster and use less water overall.

Lower surface temperatures

Surface temperatures are usually lower when it is cloudy than when it is clear. This can help when pressure washing, since high surface temperatures can make cleaning products evaporate faster, making them less effective.

When the surface temperature is lower, cleaning products can stay on the surface longer, giving the chemicals more time to break up dirt and grime.

Less dust

Rain can help cut down on dust and other airborne particles, making the place where you work cleaner. This can be very helpful when pressure washing surfaces like concrete or brick that tend to make a lot of dust.

A cleaner place of work can also make it easier to see where you have already cleaned and where you still need to clean.

Improved worker comfort

Pressure washing professionals may find it difficult and uncomfortable to work outside in the heat and sunshine.

When it is cloudy or a light drizzle, it is more comfortable to work outside, so workers can work for longer without getting tired or too hot.

This can make workers less likely to rush through their jobs to get out of the heat, which can lead to a better job of cleaning.

Enhanced cleaning results

Overall, when pressure washing in cloudy or light rainy weather, there are several benefits. The surface is consistently wet, water evaporation is lower, surface temperatures are cooler, and worker comfort is improved.

By working in these situations, professionals can clean your surfaces more thoroughly and quickly, making them look their best.

Cons of Pressure Washing in the Rain

Before you decide to move forward with your project, you need to think about these possible problems:

Safety concerns

Accidents are more likely to happen when pressure washing in the rain. Surfaces are slippery, thus creating additional hazards. Electrical dangers are also a concern.

Wet surfaces can make it harder to keep your balance, making it more likely that you will slip and fall.

So make sure to wear slip resistant waterproof boots while pressure washing in rain. Find out the best boots for pressure washing here.

RUGGED SHARK Waterproof Deck Boots

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  • Rubber sole
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  • Easy to put on
  • Cushioned Footbed

Less effective cleaning

Rainwater can dilute the cleaning solutions used in pressure washing, reducing their effectiveness in breaking down and removing dirt and grime.

This may result in a weaker cleaning power, requiring multiple applications of the cleaning solution or more time spent on each area to achieve the desired level of cleanliness.

Longer drying time

When it rains, surfaces take longer to dry. This can be an issue if you need to paint or seal them after cleaning. Moisture over a long period of time can cause mold and mildew to grow.

This makes pressure washing less efficient and can increase the amount of cleaning or maintenance needed.

Which Pressure Washer to Use in the Rain: Gas or Electric?

When it comes to pressure washing in rainy conditions, selecting the right type of pressure washer is crucial for both safety and effectiveness.

There are two main kinds of pressure washers: those that run on gas and those that run on electricity. When it is raining, gas pressure washers work better than electric ones.

electric vs gas pressure washer

Can You Use a Gas Pressure Washer in the Rain?

Gas-powered pressure washers have several advantages, even though they are loud and not environmentally friendly. One of these benefits is that they are ideal for use when it is raining.

Power: Gas pressure washers have more power than other types. This makes them better at cleaning off stubborn dirt and grime, even when the surface is wet from rain.

Mobility: They don’t need to be plugged in, so they can be used in places with limited or no access to electricity. This is especially helpful when it is raining and the power might go out.

Durability: Gas pressure washers are usually made with stronger materials and parts. This gives them increased durability. They are better able to handle wet and rainy conditions.

But it is important to take the right safety steps when using a gas pressure washer in the rain. Ensure adequate ventilation to prevent the buildup of exhaust fumes. Use caution when handling fuel to avoid spills.

Tips for Using a Pressure Washer in Rain

  • Using an electric pressure washer requires the use of a ground fault circuit interrupter (GFCI). This is to ensure the safety of the electricity.
  • Wear the right safety gear, like shoes that will not slip, clothes that will not get wet, eye protection, and gloves.
  • If you can, do not use extension cords.
  • Be aware of your surroundings (watch out for things that could trip you up and other dangers).
  • Change the way you clean when it is wet (use more pressure or a more concentrated cleaning product).
  • Before you turn on the water flow control knob, make sure all the hoses are securely attached.
  • Change the height of the sprayer so you can not get sprayed while using the machine.
  • After using your pressure washer, make sure to clean it well and put it away in a dry, well-ventilated place.
  • Use a cover to keep rain from getting into your pressure washer.
  • Study the manual to learn about manufacturer’s recommendations to use your pressure washer in wet conditions


Using a pressure washer in wet conditions is risky. We must take precautions to protect ourselves and our equipment. Careful consideration is needed to ensure safety and the longevity of our equipment.

By selecting the appropriate pressure washer, adhering to safety measures, and adjusting your cleaning techniques, you can effectively tackle your outdoor cleaning tasks even in the face of challenging weather conditions.

Prioritize your safety and maintain your pressure washer. This will ensure you can enjoy its powerful cleaning capabilities for years.

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