skip to content
40ft high cube storage container for sale

How Hot Do Shipping Containers Get?

Introduction to the hotness of shipping containers

There are several factors that determine the temperature inside a shipping container, including radiant heat from the sun and insulation.

In direct sunlight, storage containers can reach up to 144 degrees but drop to about 90 degrees under full shade. Light-colored roof coatings can also reduce temperatures to a few degrees above ambient levels.

Some people have even experienced a difference in temperature when they open their containers’ doors. Whatever the cause, you can be sure that your belongings will stay safe and secure.


The temperature of a shipping container depends on the materials used for the exterior. Brown-painted containers can reach 50 degrees Fahrenheit at 25 degrees Celsius outside.

Steel containers are less susceptible to temperature changes, with the ratio of surface area to the volume being especially high. The majority of fluctuations are experienced during ocean and inland transportation.

During the winter season, the temperature remains more consistent but can dip to 26 degrees Celsius.

Ground shipping is the most popular mode of transportation, as it allows almost any type of product to be transported safely. Many people in Connecticut, Maryland, and Vermont use this as their mode of transportation in delivering containers.

The difference between the dew point and the air temperature of a container is also important. The lower the difference, the lower the condensation risk.

The cargo should be loaded as dry as possible to minimize the chances of condensation. The type of container used to ship the cargo determines the climate within. Closed standard containers experience relatively high temperatures.

Open flat racks and refrigerated containers are more susceptible to humidity changes. In general, closed standard containers are more resistant to condensation than refrigerated or open ones.

Another major problem with shipping containers is their inability to regulate their temperature. Most shipping containers are not refrigerated.

Consequently, the temperature of the interior depends on the ambient temperature outside. Because steel conducts heat well, it’s important to have climate control if you’re living in or using the container as an office or storing sensitive items.

Whether or not it’s possible to maintain the proper temperature inside the shipping container depends on the structure and modifications made to it.


Shipping goods to tropical climates can be hazardous to the contents inside a shipping container. Materials such as cardboard boxes and wooden pallets can trap moisture and increase the risk of mold growth.

Food products, for example, are often stored in cardboard boxes, which are extremely absorbent and therefore can increase the risk of mold development. Plastic wrapping of storage boxes should be done before loading them.

Nevertheless, these factors cannot be avoided entirely. Shipments should be shipped in dry weather whenever possible.

Proper ventilation is essential when it comes to maintaining the environment inside a shipping container. Shipping containers generally have an external bracket and holes drilled in strategic areas to allow warm air to escape and cool, dry air to penetrate the container.

However, if ventilation is not possible, shipping container owners should install vents. If there is no ventilation, condensation can form on the walls. Insulating the walls of the shipping container can help prevent this problem.

Shippers should consider installing air conditioning inside the container. This helps stabilize temperatures inside and prevent condensation during winter.

Container insulation can be either spray foam or standard insulation. The latter type must be installed by a professional to ensure that the temperature is consistent throughout.

Insulation should be chosen based on its R-factor. The higher the R-factor, the better.

If not, the humidity level may increase during the shipment. There are many products that can help manage humidity levels in shipping containers.

Radiant heat

Shipping containers are notoriously hot because of the radiant heat from the sun. In direct sunlight, they can reach up to 144 degrees. Adding insulation or a light-colored roof coat can lower the temperature by a few degrees.

Opening doors, however, can bring a noticeable temperature difference. Keeping items in a shipping container cool in the heat is essential to their safety. The following are tips to combat the heat in shipping containers.

Metal studs in shipping containers are very effective at conducting heat. But they also allow cold air to penetrate and chill the inside of the container.

So, to combat this issue, it is important to place insulating material between the corrugated metal wall studs and the inside of the container. In addition, there are also ways to minimize the amount of radiant heat that reaches the inside of a shipping container.

The best way to keep the inside temperature comfortable is to keep the metal studs at a distance.

Shipment temperatures inside a shipping container can reach 135 degrees Celsius.

Xerox engineers found that the interior temperature could exceed the exterior temperature by 15 degrees. Shipping container homes advertise themselves as being climate-friendly. This isn’t always true.

However, there are strategies and products available to make shipping container homes a good fit for any climate. And there are more people opting for shipping container homes because of their unique benefits.

Exhaust fans

If you’re moving into a shipping container, you might be wondering how hot the environment gets inside. The answer depends on the size of your container and the amount of ventilation it needs.

You can find exhaust fans in various sizes, from ten to 36 inches, with varying speeds. Some fans have variable speeds, making them easy to operate.

If you’re moving into a shipping container with humidity and condensation issues, you may also want to consider purchasing a dehumidifier.

Dehumidifiers will pull moisture from the air, controlling humidity levels, and will save you a lot of money on cooling bills.

Exhaust fans are great for keeping the interior of a shipping container comfortable. They can also help control the number of fumes circulating inside the container. These fans work much the same way as rooftop vents, but they’re smaller.

Exhaust fans can be mounted anywhere inside the container, including the rooftop. However, the fan must be the right size for the size of your container.

If you’re moving into a shipping container, you should be sure to get a shipping container with an exhaust fan.

Spray foam

The use of spray foam to cool shipping containers is becoming increasingly popular among repurposed companies. The material provides a barrier against heat and cold, while requiring no wood framing or support system.

Instead, it adheres directly to the sidewalls or ceiling of a container. It can be thick or thin, depending on the application.

The spray foam material is resistant to water, sunlight, and UV rays, which makes it a great choice for shipping containers.

Conventional insulation methods are not ideal for shipping containers, because they take up valuable space and cause condensation.

Conventional insulation, such as wool and batts, is inefficient in shipping containers because it requires a framework and can lead to mold and mildew growth.

Spray foam insulation is designed for shipping containers and is tailor-made to fit their unique structure.

Because of this, conventional insulation methods can’t be used to cool shipping containers, as they may cause the container to overheat or cause condensation.

When using spray foam to cool shipping containers, it’s important to follow these steps to avoid air-tightness problems.

First, clean the interior of the container. Using a cleaning detergent can help remove any dirt.

Once the interior of the container has been cleaned, you can begin to install the insulation. Once the insulation has been installed, you can install the ceiling and walls.

Alternatively, spray the interior with a foam sealant to prevent any future problems.

Commercial through-wall HVAC systems

Depending on the size of the container, you can choose between basic window air conditioners and high-end commercial through-wall HVAC systems.

Window units are often used for residential purposes, while commercial through-wall HVAC systems are used for specific applications and harsher climates.

There are several different types of systems available, including variable-speed models, exhaust fans, and dehumidification systems.

You can even install a discharge line to efficiently eliminate condensed water from the space and reduce maintenance.

A commercial through-wall HVAC system is available for a wide range of container sizes, from 1.5 to five tons.

Commercial through-wall HVAC systems provide the cooling or heating required for the space and can be either on-off or modulating. They are ideal for shipping containers, as they are easy to install and can be adjusted to accommodate thermal load requirements.

Some systems also feature an integrated refrigeration system, which cools or heats the air delivered through the container’s wall.

Shipping containers do not have refrigeration systems, so the temperature inside will fluctuate naturally. They are made of steel, which conducts heat well.

If you live inside the container, use it as an office, or store temperature-sensitive items, climate control is essential. Fortunately, there are many advantages to climate control.

In this article, we’ll examine some of the best benefits of a shipping container HVAC system.


There are two main types of insulation for shipping containers – external and internal. External insulation involves covering the outer sides of the shipping container with a layer of material.

Some materials, such as hay bales, act as excellent insulators. They can also help prevent the shipping container from extreme temperatures by forming a barrier.

Both types of insulation can be applied to a shipping container using a variety of techniques.

Insulation for shipping containers can be applied to traditional shipping containers in a variety of ways, ranging from standard wood lining to polyisocyanurate foam board, fiberglass batts, and insulation panels.

There are also many types of recycled materials available. Whatever the type of insulation you choose, make sure it has decent thermal resistance. Using a specialized tool, such as a spray foam gun, can help you avoid costly mistakes.

Loose fabric is another option for shipping container insulation. It fills the spaces left by large panels. It’s available in clumps and can be manually stuffed into spaces that need protection.

Another option is cellulose, which is a byproduct of paper and wood. This type of material is effective at blocking airflow and provides a high R-value. It is typically installed as clumps and is available in different sizes.

Why use TheShip to get shipping container quotes?
Best Prices
Quick Turnaround
Easy Process

Compare & Save

View deals on shipping containers from suppliers in your area now

Takes less than 30 seconds