  Recently it is found that Weyl anomaly leads to novel anomalous currents in
the spacetime with a boundary. However, the anomalous current is suppressed by
the mass of charge carriers and the distance to the boundary, which makes it
difficult to be measured. In this paper, we explore the possible mechanisms for
the enhancement of anomalous currents. Interestingly, we find that the
anomalous current can be significantly enhanced by the high temperature, which
makes easier the experimental detection. For free theories, the anomalous
current is proportional to the temperature in the high temperature limit. In
general, the absolute value of the current of Neumann boundary condition first
decreases and then increases with the temperature, while the current of
Dirichlet boundary condition always increases with the temperature.
