How temperature affects paintballs is an important consideration for players who want reliable performance at the field. Paintballs are made with a thin gelatin shell filled with a water-soluble colored fill, so they react differently to temperature and humidity than solid projectiles.
Understanding these environmental effects helps players choose the right paintballs, store them properly, and avoid common issues such as brittle shells, dimpling, barrel breaks, and inconsistent flight.
Why Temperature Affects Paintballs
Understanding how temperature affects paintballs is important because paintballs are sensitive to environmental conditions. Unlike solid projectiles, paintballs have thin gelatin shells that can change slightly depending on temperature and humidity. These changes can affect how paintballs feed through the marker, fit the barrel, and break on impact.
Temperature does not just affect performance at the moment of play. It also affects how paintballs hold up during transport, storage, and handling before they ever reach the field.
Paintballs are manufactured using gelatin shells that are sensitive to environmental conditions such as temperature and humidity. Major paintball manufacturers such as G.I. Sportz recommend storing paintballs in stable conditions to maintain consistent performance.
Cold Weather and Brittle Paintballs
Cold weather can make paintballs more brittle, which is why players often experience more breaks when using paintballs in cold weather conditions. As the shell becomes less flexible, paintballs may be more likely to crack from rough handling, magazine pressure, or the force applied during chambering and firing.
Players sometimes notice more barrel breaks or paint breaking inside the marker when paintballs have been exposed to low temperatures for too long. Cold weather can also make paintballs slightly smaller, which may affect how they fit in the barrel.
Can Paintballs Freeze?
Yes, paintballs can freeze if they are exposed to very low temperatures. When frozen, the gelatin shell becomes extremely brittle and the paintballs are much more likely to crack during handling or break inside the marker. For this reason, paintballs should not be left in vehicles or stored in freezing conditions before or during play.
Heat, Humidity, and Soft Paintballs
Hot weather can soften paintballs, especially when heat is combined with humidity. In these conditions the gelatin shell may absorb moisture and become softer, which can make paintballs more prone to deformation or sticking together during storage and handling.
Dimpling is often associated with very dry conditions. Because gelatin shells exchange moisture with the surrounding air, a drop in humidity can cause the shell to lose moisture and contract slightly, which may lead to flat spots or dimples forming on the paintball surface.
Paint that sits in a hot car, direct sunlight, or a hot staging area can lose consistency quickly. In very warm conditions, paintballs may also become tacky and begin to stick to one another or deform more easily during storage and handling. For this reason, paintballs should be kept in a cool, shaded place and protected from major swings in temperature and humidity.
How Temperature Affects Paintballs During Play
Temperature-related changes in shell condition and paintball size can affect several aspects of performance. Paintballs that are too brittle may break before reaching the target, while paintballs that are too soft may become misshapen and bounce, rather than break on target.
Because paintballs can also vary slightly in size, temperature can influence how well the paint matches the barrel. A paint-to-barrel match that works well in one set of conditions may not work as well after the paint has been exposed to colder or warmer temperatures.
Temperature can also influence paintball size slightly, which may affect how well the paint matches the barrel. Learn more about paintball diameter and sizing in our guide explaining what size paintballs are.
How to Store Paintballs Properly
Understanding how temperature affects paintballs helps players store paint properly. Paintballs should be stored in a cool, dry place away from direct sunlight and major temperature swings. Leaving paint in a garage, car trunk, or other uncontrolled environment can increase the chances of brittle shells, swelling, or dimpling.
Keeping paintballs in their original sealed packaging until they are needed can help protect them from humidity and temperature changes. Players storing paint for a longer period often rotate the cases or bags occasionally to help prevent the paint from settling in one position for too long.
Players often overfill their pods, which places additional pressure on the paintballs inside. Paint stored in tightly packed pods can become deformed over time, especially if the paint is also exposed to heat or humidity. For this reason, pods are best filled shortly before play rather than used for long-term paint storage.
Paintballs perform best when stored in stable conditions with moderate temperature and humidity. Many paintball performance issues are caused by improper storage before the game rather than the weather during play, so keeping paint in a temperature-controlled environment can make a significant difference.
Paintballs are typically sold in cases that contain four sealed bags of paint. If you want to learn more about packaging and quantities, see our article explaining how many paintballs are in a case.
Choosing Paintballs for Different Conditions
Players should consider how temperature affects paintballs when choosing paintballs for their day of play. More durable field paint may be a safer choice in colder conditions or in markers that place greater force on the paintball during chambering and firing. More fragile premium or tournament paint is generally better suited to higher-end markers that operate at lower pressures and place less force on the paintball during firing.
Paintball manufacturers often adjust shell formulations throughout the year to better match seasonal conditions. Paint produced for cooler spring and fall weather is typically made with slightly tougher shells to handle lower temperatures, while paint produced for warmer summer conditions is formulated to perform more consistently in heat and humidity.
Different paintballs are designed for different styles of play. You can learn more about the differences between practice, field, premium, and tournament paint in our guide to paintball grades.
Environmental conditions can vary significantly between regions, and paintball performance is closely tied to temperature and humidity. Canada is home to one of the few paintball manufacturing facilities in North America, operated by GI Sportz. Paintballs produced for Canadian stores and fields by GI Sportz are formulated with local climate conditions in mind, where temperatures and humidity levels can differ greatly from many parts of the United States. For example, summer conditions in northern Ontario are very different from those in southern regions such as Texas. Paint designed for Canadian fields is often built to perform more consistently within the temperature ranges and humidity levels players commonly encounter across Canada.
Using fresh paint and choosing paint that matches the weather conditions can help reduce issues such as brittle shells, dimpling, or inconsistent flight.
For most players, the best approach is to use fresh paint, store it properly, and avoid exposing it to unnecessary heat or cold before playing.
Badlands is Canada’s largest paintball retailer and supplies paintballs made in Canada for Canadian playing conditions. Paint manufactured for Canadian fields is designed with the country’s typical temperature ranges and humidity levels in mind, which can differ significantly from those in many parts of the United States. You can browse the available paintballs at Badlands to compare options suited to different markers, styles of play, and field conditions.
How Temperature Affects Paintballs FAQ
Can paintballs freeze?
Yes. Paintballs can freeze in very cold temperatures. Frozen paintballs become extremely brittle and are much more likely to break during handling, feeding, or firing.
Do paintballs go bad in heat?
Heat can soften paintballs, especially when combined with humidity. Softer shells may swell slightly, deform during storage, or become sticky enough to cling together.
Why do paintballs get dimples?
Dimpling is often associated with very dry conditions. When humidity drops, gelatin shells can lose moisture and contract slightly, which can cause flat spots or dimples on the paintball surface.
How should paintballs be stored?
Paintballs should be stored in a cool, dry place with stable temperature and moderate humidity. Avoid leaving paint in hot cars, garages, or other uncontrolled environments.
Does temperature affect paintball performance?
Yes. Temperature and humidity can affect shell flexibility, paintball size, and overall consistency, which can influence feeding, accuracy, and breakage.
Can I leave paintballs in my car?
Leaving paintballs in a car is not recommended. Cars can heat up quickly in warm weather and become very cold overnight, which can soften or harden the gelatin shells. These temperature swings can cause swelling, brittleness, dimpling, or inconsistent paintball performance.