A method to control the temperature of the exhaust gases of a supercharged internal combustion engine comprising a number of cylinders, an intake manifold, which is connected to the cylinders, an exhaust manifold, which is connected to the cylinders, as well, and feeds the exhaust gases produced by the combustion taking place inside the cylinders to an exhaust system, and a turbocharger, which is provided with a turbine and a supercharger; and a sensor, which measures the air/fuel ratio of the exhaust gases downstream of the exhaust manifold; the supercharged internal combustion engine, furthermore, is designed to permit the passage of air not involved in the combustion taking place inside the cylinders from the intake manifold directly into the exhaust pipe; the method comprises the steps of: determining the flow rate (m air_scav) of air that is not involved in the combustion taking place inside the cylinders and flows directly from the intake manifold into the exhaust pipe; determining the minimum air/fuel ratio (λ min) of the exhaust gases downstream of the exhaust manifold as a function of the flow rate (m air_scav) of air that is not involved in the combustion taking place inside the cylinders and flows directly from the intake manifold into the exhaust pipe; detecting the air/fuel ratio (λ meas) of the exhaust gases downstream of the exhaust manifold provided by the sensor; comparing the air/fuel ratio (λ meas) of the exhaust gases downstream of the exhaust manifold detected by the sensor and/or the minimum air/fuel ratio (λ min) of the exhaust gases downstream of the exhaust manifold with a number of threshold values (UTV OL_SCAV, UTV INHIB_SCAV, UTV LIMIT_SCAV, LTV OL_SCAV, LTV INHIB_SCAV, LTV LIMIT_SCAV, SV); and controlling the supercharged internal combustion engine as a function of the comparison between the air/fuel ratio (λ meas) of the exhaust gases downstream of the exhaust manifold detected by the sensor and/or the minimum air/fuel ratio (λ min) of the exhaust gases downstream of the exhaust manifold with said number of threshold values (UTV OL_SCAV, UTV INHIB_SCAV, UTV LIMIT_SCAV, LTV OL_SCAV, LTV INHIB_SCAV, LTV LIMIT_SCAV, SV). determining the flow rate (m air_scav) of air that is not involved in the combustion taking place inside the cylinders and flows directly from the intake manifold into the exhaust pipe; determining the minimum air/fuel ratio (λ min) of the exhaust gases downstream of the exhaust manifold as a function of the flow rate (m air_scav) of air that is not involved in the combustion taking place inside the cylinders and flows directly from the intake manifold into the exhaust pipe; detecting the air/fuel ratio (λ meas) of the exhaust gases downstream of the exhaust manifold provided by the sensor; comparing the air/fuel ratio (λ meas) of the exhaust gases downstream of the exhaust manifold detected by the sensor and/or the minimum air/fuel ratio (λ min) of the exhaust gases downstream of the exhaust manifold with a number of threshold values (UTV OL_SCAV, UTV INHIB_SCAV, UTV LIMIT_SCAV, LTV OL_SCAV, LTV INHIB_SCAV, LTV LIMIT_SCAV, SV); and controlling the supercharged internal combustion engine as a function of the comparison between the air/fuel ratio (λ meas) of the exhaust gases downstream of the exhaust manifold detected by the sensor and/or the minimum air/fuel ratio (λ min) of the exhaust gases downstream of the exhaust manifold with said number of threshold values (UTV OL_SCAV, UTV INHIB_SCAV, UTV LIMIT_SCAV, LTV OL_SCAV, LTV INHIB_SCAV, LTV LIMIT_SCAV, SV).