Wetting properties of superhydrophilic thin coatings were investigated by modifying the coating's formulation based on hydrophilic silica nanoparticles and Poly (acrylic acid (PAA) binder. The formulated coatings were characterized by several analyses. Water contact angle (WCA) measurements were conducted to characterize the surface wetting properties and showed that an increase of particle to binder ratio decreased the WCA. Scanning Electron Microscope (SEM) images were taken to examine the morphology of the coating surface and demonstrated that increasing of the particle to binder ratio decreased the roughness factor. Atomic force microscopy (AFM) analysis was done to study surface topography and roughness. The presence of hydrophilic functional groups and nano-scale roughness were found to be responsible for superhydrophilic behavior of the films. However, surface chemistry was found to be a primary factor determining the wetting properties of the thin film coatings. Finally, the spreading dynamics of water droplets on the coatings was investigated by following the droplet diameter with respect to time. It was found that the spreading velocity increased with increased of the roughness factor. This study set the basic principles for the formulation of superhydrophilic coatings for anti-fogging applications of transparent substrates.