Artificial Turf Surface Temperature: What Field Measurements Show

This page synthesizes what outdoor measurements of turf and comparison surfaces generally show, for homeowners, pet owners, schools and facility managers deciding when turf is safe to use. We give cautious ranges rather than single numbers, explain why measurements differ so much, and offer practical thresholds for bare skin and paws. For ways to reduce heat, see turf too hot and turf heat.

How hot do different surfaces get in summer sun?

Measurements vary with weather, time of day, sun angle and how the reading is taken. The ranges below are typical midday, clear-sky values on a day with air temperature around 85 to 95F. They are our synthesis of commonly reported outdoor measurements, not results of a single study.

Two points stand out. First, turf is often hotter than concrete, which surprises people because turf looks like a lawn. Second, the gap between turf and grass is not about color. Grass cools itself by transpiring water, and turf has no water to evaporate.

Why does artificial turf get so hot?

Turf fibers are thin polymer strands with little mass and no moisture. They absorb sunlight and transfer heat to the air and to anything touching them. The backing and infill below store heat. With no evaporation, the only ways to lose heat are convection to air, radiation and conduction into the base, all of which are slower than the energy arriving from the sun at midday.

Factors that raise or lower turf temperature

Infill choices are covered in infill types, and the concentrated-glare problem in window reflection melting.

How much does watering cool turf, and for how long?

Watering is effective but short-lived. Wetting turf drops the surface temperature quickly, often to near air temperature or below, because evaporation absorbs heat. Once the fibers and top of the infill dry, temperatures climb back. In strong midday sun, measurements commonly show most of the benefit gone within about 20 to 60 minutes, faster on windy, dry days and slower in humid weather or with water-holding infills.

Practical implications follow. A quick rinse right before kids or dogs go out helps for a short play session, not an afternoon. Misting or sprinkler cycles can maintain cooling but use water, which reduces the conservation benefit of turf. Infills designed to hold moisture extend cooling somewhat after watering, but they do not create cooling without water.

Infrared thermometers read the surface of the fibers, not what a foot feels after several seconds of contact, and readings vary with emissivity settings. Use them for comparisons on your own yard, not as precise measurements.

What surface temperature is safe for skin and paws?

There is no single official threshold for turf contact. Burn risk depends on surface temperature, contact time, the material's ability to transfer heat and the skin involved. Children's and pets' skin is more vulnerable, and people lying or sitting on a surface have longer contact than people walking. We use these practical bands as a conservative guide.

A widely shared rule for dogs is to press the back of your hand to the surface for seven seconds; if you cannot hold it there, it is too hot for paws. It is not a calibrated test, but it errs on the safe side. For dog-specific guidance, see is artificial turf safe for dogs.

Turf fibers have low mass, so brief contact is less likely to burn than equally hot metal or dark rubber, but that advantage disappears with longer contact. Heat stress from the air above hot surfaces is a separate concern in playground and sports settings.

Our rule of thumb for planning use

On sunny days above about 80F, assume unshaded standard turf is in the over 140F band from late morning through mid afternoon, and plan around it: use it before about 10 am and after about 5 pm, add shade where people and pets gather, and water just before use for short sessions. In hot desert regions this applies for much of the year; see hot and desert climates. For site design that changes the temperature itself, nothing beats shade.

What most heat comparisons get wrong

Many marketing claims compare a "cool" turf product to standard turf, then imply it behaves like grass. A reduction of 10 to 30F from 160F still leaves a surface far hotter than a living lawn. Conversely, some critics compare turf at peak sun to grass in shade. Fair comparisons measure both surfaces at the same time, under the same sun, with the same instrument. Ask for that when evaluating heat claims.

Frequently asked questions

Is artificial turf hotter than concrete?

Often, yes. In strong summer sun, standard synthetic turf commonly measures hotter than light-colored concrete, because the thin fibers heat quickly and concrete's mass and lighter color moderate its surface temperature. Dark asphalt can match or exceed turf. Grass is consistently the coolest of these surfaces in sun, as long as it is irrigated and actively growing.

Does turf color affect temperature?

Yes. Darker greens absorb more sunlight and run hotter, and lighter or brown-blended products run somewhat cooler. Color matters less than shade, wind and moisture, though. Some products add pigments or fiber treatments intended to reflect more infrared energy. Treat manufacturer claims as reductions relative to standard turf, not as matching natural grass.

Do cooling infills work?

Some infills reduce peak temperatures, mainly by holding water and releasing it through evaporation after rain or irrigation. Their effect fades as they dry, and they need periodic rewetting in hot, dry weather. Light-colored, non-rubber infills also avoid the extra heat of black crumb rubber. Expect a moderate reduction, not grass-like temperatures.

Can hot turf melt or burn?

Ordinary sun does not melt turf, but concentrated reflection from certain windows can raise local temperatures enough to melt fibers in lines or patches. Direct heat from grills, fire pits, fireworks and cigarettes also melts fibers. Melted areas generally cannot be restored and must be patched. See burns and fire for prevention.

Does turf make the whole yard hotter?

Turf raises the temperature of the surface and the air layer right above it, and it radiates heat into the evening. Compared with irrigated grass, a large turf area can make a yard feel warmer, especially near walls and windows. Trees, shade sails and planted borders reduce this effect. Small turf areas surrounded by planting have less impact than wall-to-wall installs.