The Euro 7 legislation introduces non-exhaust particle emission limits, thereby challenging brake systems to meet new targets. Drum brakes, with their encapsulated design, tend to reduce airborne particle emissions by promoting agglomeration effects while retaining some of the larger particles and brake dust. Nevertheless, their lower heat dissipation in comparison with disc brakes restricts their application to lower performance use cases. To identify feasible applications while addressing particle emissions, it is crucial to examine brake temperatures under various user conditions and vehicle applications. To address this, a model comprising 13 interconnected thermal point masses has been developed within MATLAB/Simulink. The model incorporates seven thermal masses for the drum, one for each brake lining, one for each brake shoe, one for the inside air, and one for the backplate. Heat input is derived from friction at the drum-lining interface, with dissipation modelled through conduction, radiation and convection between the masses and their environment. The model was parameterised and validated by comparing simulated data with brake temperature measurements from various tests. A comparison of the simulated and measured data was undertaken, which showed that the estimation of the drum temperature could be achieved with a maximum error of 50 °C for a wide range of braking scenarios/applications.. However, it has not yet been possible to model lining temperatures with the same accuracy.