In this paper, a multiphase magneto-electro-elastic (MEE) cylindrical shell is investigated under thermal environments using semi-analytical finite element procedures. The main aim of this paper is to study the pyroelectric and pyromagnetic effects on multiphase MEE cylindrical shells subjected to a uniform axisymmetric temperature of 50 K under different boundary conditions. This numerical study is mainly focused on the pyroelectric and pyromagnetic effects on system parameters such as thermal displacements, thermal stresses, electric potential, magnetic potential, electric displacements and magnetic flux densities. It is found that there is a significant increase in electric potential due to the pyroelectric and pyromagnetic effects under clamped-free boundary conditions. © 2013 IOP Publishing Ltd.