An artificial turf system defining a playing area comprises an artificial turf layer with an air distribution layer located beneath the turf layer, by which air can be distributed throughout the playing area. The air distribution layer is closed at edge regions to define a periphery of the playing area and an air supply is in fluid communication with the air distribution layer to provide a flow of air. A flow regulating layer is located between the air distribution layer and the turf layer, the flow regulating layer being provided with a plurality of openings arranged to allow permeation of air through the turf layer within the playing area. The proposed system allows air to be distributed uniformly over the whole of the playing area for cooling of the turf layer.