artificial turfBEE-773667?Natural grass? stays cooler because:

artificial turfBEE-773667?Evapotranspiration? (water evaporating from soil/plants) cools the air.

artificial turfBEE-773667?Soil acts as a heat sink, absorbing less radiation.

artificial turfBEE-773667?Artificial grass? can get hotter because:

artificial turfBEE-773667?Synthetic fibers absorb and retain heat? (especially dark-colored turf).

artificial turfBEE-773667?No natural cooling mechanism? like live plants.

artificial turfBEE-773667?? ?Data Point:

artificial turfBEE-773667On a ?90°F (32°C) day, artificial turf can reach ?140–160°F (60–71°C)?—hot enough to burn bare feet.