During the summer days, the sunlight is extremely strong and the temperature is high. In this condition, artificial grass may not get as hot as sand, rocks and concrete surface, but it also not as cool as natural grass. This can become a problem for your kids or pets who walk or play on the grass. Nevertheless, there are many ways to keep artificial grass lawns cool on hot days and you can ensure that the grass does not get too hot and can be kept at a comfortable temperature.