  According to the scheme of action of the solar dynamo, the poloidal magnetic
field can be considered a source of production of the toroidal magnetic field
by the solar differential rotation. From the polar magnetic field proxies, it
is natural to expect that solar Cycle 25 will be weak as recorded in sunspot
data. We suggest that there are parameters of the zonal harmonics of the solar
surface magnetic field, such as the magnitude of the $\ell$=3 harmonic or the
effective multipole index, that can be used as a reasonable addition to the
polar magnetic field proxies. We discuss also some specific features of solar
activity indices in Cycles 23 and 24.
