  We investigate the effect of flow fluctuations, incorporated in non
boost-invariant blast-wave model, on kinetic freeze-out parameters of
identified hadrons in low energy relativistic heavy-ion collisions. For the
purpose of this study, we use the transverse momentum spectra of the identified
hadrons produced in central Pb--Pb collisions, at SPS energies ranging from
$\rm E_{Lab}=20A-158A $ GeV, and analyze them within a modified non
boost-invariant blast wave model. We perform simultaneous fits of the
transverse momentum spectra for light hadrons ($\pi^{-}$, $K^{\pm}$, $p$) and
heavy strange hadrons ($\Lambda$, $\bar{\Lambda}$, $\phi$, $\Xi^{\pm}$,
$\Omega^{\pm}$) seperately. We also fit the transverse momentum spectra of
charmonia ($J/\Psi$, $\Psi'$) at $\rm E_{Lab}=158A $ GeV. Our findings suggest
that the inclusion of flow fluctuations enhances kinetic freeze-out temperature
in case of light and heavy strange hadrons and reduces the corresponding
transverse flow velocities. Moreover, we find that the kinetic freeze-out
parameters of the charmonia at $\rm E_{Lab}=158A $ GeV are least affected by
inclusion of flow fluctuations. Based on this, we make predictions which can
provide further insights on the role of flow fluctuations in relativistic
heavy-ion collisions.
