As the front and the rear tyres don't operate at the same temperatures, a change in track temperature will impact them differently and increase or reduce their grip levels unevenly. Varying track temperatures will therefore also affect the balance of the car. So, teams will be regularly altering the car set-up to react to these changes.
But it's not just the teams who react to those changes. It's the drivers, too. Their driving style has an impact on tyre temperatures. Drivers will push harder if they want to put heat in the tyres, especially in high-speed corners.
If the track temperature changes considerably during a race, drivers have several ways to deal with this. In addition to how hard they push the tyres, they can alter their driving lines to suit the balance of the car, adjust the differential - the amount of torque transfer between the rear wheels - or the brake balance to the front or the rear of the car.
While the tyres are mostly impacted by the track temperature, the brakes, cooling and Power Unit are more heavily influenced by the air temperature. Therefore, teams are constantly monitoring both the air and track temperatures as well as the temperatures of the components within the cars themselves. This will allow the teams to see how those components are evolving and changing over the course of sessions or races.
Temperature swings will change the amount of cooling required to keep the Power Unit running in the optimum window, providing the teams with the best power output. If the ambient air is hot, more airflow is required to get it back to the optimum temperatures - so the teams will open up the bodywork in order to increase airflow through the radiators.