Quantum spin liquids are long-range entangled states of matter with emergent gauge fields and fractionalized excitations. While candidate materials, such as the Kitaev honeycomb ruthenate
α
−
RuCl
3
, show magnetic order at low temperatures
T
, here we demonstrate numerically a dynamical crossover from magnonlike behavior at low
T
and frequencies
ω
to long-lived fractionalized fermionic quasiparticles at higher
T
and
ω
. This crossover is akin to the presence of spinon continua in quasi-1D spin chains. It is further shown to go hand in hand with persistent typicality down to very low
T
. This aspect, which has also been observed in the spin-1/2 kagome Heisenberg antiferromagnet, is a signature of proximate spin liquidity and emergent gauge degrees of freedom more generally, and can be the basis for the numerical study of many finite-
T
properties of putative spin liquids.