Artificial turf can get very hot in direct summer sun, often 60 °F or more hotter than living plants, and university researchers in California have recorded surface readings above 170 °F in desert heat. Cooling infill can help. HydroChill, an evaporative cooling infill, lowers surface temperature while it is moist, and pairing it with heat-reducing turf fibers, a quick rinse, and shade makes the biggest difference.
Artificial Turf Express supplies turf, infill, and installation supplies from our San Jose yard. This guide shares what research shows about turf heat, explains why it happens, and walks through what actually helps, including cooling infill.
How Hot Does Artificial Turf Get?
On a sunny summer afternoon, artificial turf can climb well above 120 °F at the surface, and studies in desert climates have recorded readings near 170 °F. How hot it gets depends on sun, air temperature, turf color and fiber, infill, and whether the turf is wet.
| Surface or study | Reported temperature | Conditions |
| Synthetic turf, Palm Springs | Up to 173 °F | Afternoon, summer, desert (UC research) |
| Living plants and grass, Palm Springs and Redlands | About 90 to 100 °F | Same afternoons, same study |
| Synthetic turf vs. irrigated grass, Las Vegas | About 69 °F hotter at peak | Desert, summer (UNLV) |
| Synthetic turf after irrigation | Fell from 174 °F to 85 °F, back to 120 °F in 5 minutes | Sports field, summer (BYU) |
Research by UC Cooperative Extension is especially relevant for California. Measuring surfaces between 3 and 3:30 p.m. from May through August, UC advisor Janet Hartin found synthetic lawns, asphalt, and black mulch ran more than 65 °F hotter than plants in Palm Springs and about 60 °F hotter in Redlands, with a top turf reading of 173 °F.
Does artificial turf get hot in San Jose?
Yes, though usually not as extreme as the desert. Inland San Jose and much of the Santa Clara Valley see warm, dry afternoons from late spring through early fall, with strong sun and little rain. That is enough to make untreated turf uncomfortable for bare feet and paws in the afternoon, especially on south- and west-facing yards.
Why Does Artificial Turf Get So Hot?
Artificial turf gets hot because its plastic fibers absorb sunlight and cannot cool themselves the way living grass does. Grass releases water vapor through its leaves, a process called transpiration, which keeps its surface close to air temperature. Synthetic fibers have no way to shed heat except into the surrounding air.
Three things make it worse:
- Direct sun. Solar radiation, more than air temperature, drives how hot the surface gets.
- Dark materials. Darker fibers and dark infills, like crumb rubber, absorb more heat than lighter ones.
- Dry conditions. With no moisture in the system, nothing can evaporate and carry heat away.
Can Cooling Infill Help?
Yes. Cooling infill is one of the few ways to lower turf temperature at the surface itself, but it works only while it holds moisture. HydroChill, the cooling infill we carry, is a coated sand that soaks up water from dew, sprinklers, rain, or a hose, then releases it as the sun heats the turf. As the water evaporates, it carries heat away, similar to how sweat cools skin.
Visit the HydroChill product page for bag size, product specifications, and details about its Bac-Shield antimicrobial protection.
How much cooler is HydroChill?
Manufacturers and installers who use HydroChill report surface temperatures 30 to 50 °F lower than standard turf systems in lab and outdoor testing when the infill is hydrated. Real-world results vary with sun, heat, humidity, and how recently the turf was wet. Some installers note that those tests compare moist HydroChill with dry standard infill, so the fairest way to think about it is that HydroChill makes each rinse or morning dew last longer.
Does watering artificial turf cool it down?
Yes, but only briefly. Research from Penn State’s Center for Sports Surface Research found that irrigation lowers synthetic turf temperatures, but the effect fades quickly once the sun returns. A Brigham Young University study found a sports field dropped from 174 °F to 85 °F after watering, then climbed back to 120 °F within five minutes. Cooling infill is designed to hold moisture longer so the effect lasts.
Which infill gets the hottest?
Dark crumb rubber infill tends to get the hottest because it absorbs a lot of sunlight. Lighter coated sands run cooler, and cooling infill like HydroChill adds evaporative cooling. If you are comparing options, our artificial turf infill range includes coated sands such as Wonderfill 12/20 Green.
Other Ways to Keep Artificial Turf Cooler
Cooling infill works best as part of a plan. These steps all help, and they work better together.
- Choose heat-reducing turf. Some turf fibers are made to reflect more sunlight and absorb less heat. Coronado Platinum has heat-reduction technology in its S-shaped fibers, and it calls for 2 to 3 pounds of infill per square foot, which gives the cooling infill room to work.
- Rinse before use. A short rinse right before kids or pets go out cools the surface, and HydroChill helps that rinse last.
- Add shade. Trees, shade sails, and patio covers cut the direct sun that drives turf heat.
- Use the yard at cooler times. Mornings and evenings are far more comfortable than midafternoon in summer.
- Watch for window glare. Sunlight reflected from energy-efficient Low-E windows can get hot enough to melt turf. Screens, exterior film, or shade can block it.
Is artificial turf too hot for dogs?
It can be hot on some afternoons, so plan ahead. Rinse the turf before your dog goes out, provide shade and water, and keep midday play short in heat waves. For pet areas, Coronado Pet includes heat-reduction technology and antimicrobial blades in a shorter 1-inch pile that is easier to clean.
A Simple Summer Cooling Plan for San Jose Yards
For most San Jose lawns, this routine keeps turf comfortable from May through October:
- Install a heat-reducing turf where people and pets spend the most time.
- Use HydroChill as your infill in sunny play areas, at the rate on your turf’s spec sheet.
- Rinse for a few minutes in the morning or just before afternoon use to recharge the infill.
- Provide shade over at least part of the lawn and the dog’s resting spot.
- Check reflective windows facing the lawn and add screens or film where needed.
Check your water provider’s current outdoor watering guidelines before setting a rinse schedule.
FAQ
How hot does artificial turf get in summer?
In direct summer sun, artificial turf can climb well above 120 °F, and California researchers recorded 173 °F on synthetic turf in Palm Springs. Shaded or recently watered turf runs much cooler.
Is artificial turf hotter than concrete?
It can be. In UC research, synthetic lawns and asphalt reached similar peak temperatures, while concrete and light-colored mulches ran cooler than dark surfaces.
Does cooling infill really work?
Yes, while it is moist. HydroChill uses evaporative cooling, and its manufacturer and installers report surface temperatures 30 to 50 °F lower than standard turf when hydrated. It does little once it dries out.
How long does watering keep turf cool?
Only a short time on its own. In one university study, a watered field rebounded from 85 °F to 120 °F within five minutes in full sun. Cooling infill holds moisture longer.
Is artificial turf too hot for dogs?
It can be on hot afternoons. Rinse it before play, provide shade and water, and keep midday play short during heat waves.
Can windows melt artificial turf?
Yes. Sunlight reflected from Low-E windows can melt turf fibers. Window screens, exterior film, or shade structures prevent it.
What is the coolest type of artificial turf?
Turf with heat-reducing fibers, paired with a light-colored coating or cooling infill and some shade, stays the most comfortable. No synthetic turf stays as cool as healthy, irrigated grass.
Keep Your Turf Cooler This Summer
Artificial turf does get hot in direct sun, but you have real options. Heat-reducing fibers cut how much heat the blades absorb, cooling infill like HydroChill pulls heat away while it is moist, and a quick rinse plus shade covers the rest. Artificial Turf Express keeps HydroChill, heat-reducing turf, and installation supplies in stock and ready for pickup in San Jose. Contact Artificial Turf Express by calling (408) 413-3179 or visiting 370 Umbarger Rd, San Jose, CA 95111.
