Artificial turf can reach surface temperatures of 150°F to 170°F on a hot summer day, making it one of the hottest surfaces you’re likely to walk or play on. That’s roughly 70°F hotter than natural grass and can even exceed asphalt by 37°F. These temperatures are well above the threshold for skin burns, which is why turf heat has become a serious concern for athletes, parents, and anyone using synthetic fields during warm months.
Peak Temperatures Recorded on Turf
Researchers at the University of Nevada, Las Vegas and the Desert Research Institute measured surface temperatures as high as 169°F on green artificial turf. That reading was 62°F above the ambient air temperature and 69°F hotter than irrigated natural grass measured at the same time. In a separate study conducted in Tempe, Arizona, Division I football players trained on artificial turf that reached 140°F while the natural grass field next to it sat at just 91°F.
Surface temperatures above 93°C (about 200°F) have been recorded on third-generation synthetic turf systems, the type most commonly installed today. These extreme readings tend to occur during mid-afternoon on clear, sunny days when there’s little wind. Even on more moderate summer days, turf regularly exceeds 120°F, which researchers have identified as the upper limit for safe extended use.
Why Turf Gets So Much Hotter Than Grass
Natural grass cools itself through a process similar to sweating. It pulls water from the soil and releases it as vapor through its blades, which keeps the surface temperature close to the air temperature. Synthetic turf can’t do this. Instead, its materials absorb solar energy and hold onto it.
Modern turf fields are made of polyethylene or polypropylene plastic fibers filled with crumb rubber, which is ground-up recycled tires. The black rubber granules are especially efficient at absorbing heat. They’re dark, dense, and have no way to release stored energy except by radiating it back upward, which is exactly where players are standing. Painting or coating the rubber a lighter color helps somewhat. White-coated crumb rubber has measured about 16°F cooler than standard black rubber, but that still leaves it far hotter than grass.
How Turf Compares to Other Surfaces
A case study published in the journal Sustainability found artificial turf was about 43°F hotter than natural grass during midday readings in June. Another study found turf exceeded asphalt by 37°F and natural grass by a staggering 86.5°F. That makes turf hotter than the blacktop parking lot next to it, a fact that surprises most people.
Concrete sidewalks and asphalt roads are notorious for being hot in summer, but they have more thermal mass, meaning they absorb heat more slowly and distribute it over a larger volume. Turf’s thin plastic fibers and rubber infill heat up fast and concentrate that energy right at the surface where skin makes contact.
The Burn Risk Is Real
Skin burns from contact with hot turf are not hypothetical. Research published in 2025 measured the hourly surface temperature of artificial turf over 51 days and found the maximum hourly average reached 161°F. The surface exceeded the 118°F skin burn threshold for nearly four hours each day. That means from late morning through mid-afternoon on a typical summer day, falling or sliding on turf carries a genuine risk of contact burns.
The daytime average surface temperature of the artificial turf in that study was about 122°F, compared to 86°F for unirrigated natural grass and 84°F for irrigated grass. Even the average, not the peak, was at the burn threshold. Children are especially vulnerable because they have thinner skin and are more likely to sit, crawl, or fall on the surface.
Air Temperature Above the Field
Surface temperature and air temperature are different things, and this distinction matters for understanding heat stress during exercise. While turf surfaces can be 60°F or more above ambient air temperature, the air a few feet above the field doesn’t heat up nearly as dramatically. A study comparing Wet Bulb Globe Temperature readings (a measure that accounts for heat, humidity, and sun exposure) across grass, artificial turf, and tennis court surfaces found no statistically significant difference between them at any time of day. The largest gap was less than 1°F.
This means turf doesn’t necessarily make the air around you dangerously hotter than grass does. The primary risk is direct contact with the surface: bare feet, exposed legs, hands hitting the ground during a fall, or a player sliding for a tackle. The superheated surface also radiates heat upward, which can make the field feel noticeably warmer even if standard heat index readings are similar.
Cooler Infill Options
The turf industry has developed alternatives to standard black crumb rubber that run significantly cooler. Southern pine wood particle infill has been measured at 33°F cooler than crumb rubber. Other options include coconut husk, cork, and coated sand. These lighter-colored, organic materials don’t absorb as much solar radiation, and some retain small amounts of moisture that provide a mild cooling effect.
Fields with these alternative infills still get hotter than natural grass, but the difference shrinks considerably. If you’re evaluating a new turf installation or choosing between facilities for summer sports, the type of infill is one of the biggest factors in how hot that surface will get. Crumb rubber fields with no shade are the worst-case scenario. Fields with organic infill, lighter-colored fibers, or access to irrigation (spraying the field with water before use) will be meaningfully cooler.
Practical Ways to Reduce Heat Exposure
Wetting turf with water before play is one of the most effective short-term cooling strategies, though the effect fades within about 20 minutes as the water evaporates. Scheduling practices for early morning or evening avoids the 11 a.m. to 3 p.m. window when surface temperatures peak. Wearing shoes at all times on turf, even during warm-ups or casual use, prevents the most common source of turf burns: bare feet.
For parents watching kids play on turf in summer, touching the surface with the back of your hand is a quick test. If you can’t hold it there comfortably for five seconds, the field is too hot for bare skin contact. Athletes who regularly train on turf during hot months should wear long socks or compression sleeves on their legs to reduce the severity of friction burns if they slide or fall on the heated surface.