MaverickSU355
. . . for a near sea level altitude and for an air of no more than 35 Celsius (cooler air gives more engine thrust), . .
Remember the wings have to fly in that OAT also, so a higher inertial speed (GS) is needed for V1 V2 etc. So higher temp, thrust is less, acceleration is slower, and with a higher GS required, the runway needs to be longer on two counts.