artificial turf5A4-543?Natural grass? stays cooler because:

artificial turf5A4-543?Evapotranspiration? (water evaporating from soil/plants) cools the air.

artificial turf5A4-543?Soil acts as a heat sink, absorbing less radiation.

artificial turf5A4-543?Artificial grass? can get hotter because:

artificial turf5A4-543?Synthetic fibers absorb and retain heat? (especially dark-colored turf).

artificial turf5A4-543?No natural cooling mechanism? like live plants.

artificial turf5A4-543?? ?Data Point:

artificial turf5A4-543On a ?90°F (32°C) day, artificial turf can reach ?140–160°F (60–71°C)?—hot enough to burn bare feet.