Fields as wide as hydrogen car industry, nuclear and chemistry applications, involve the study of gas filling processes. These processes have been thoroughly studied for the past decades through experimental measurements and scientific modelling. From around a hundred referenced papers, we have built a review, specifically oriented towards gas and tank temperature variations during filling processes, which targets three objectives. First, presenting best practices to experimentally measure critical physical phenomena involved through gas filling processes and simulate these with thermodynamic or computational fluid dynamics models. Secondly, from the results collected, a set of cumulated knowledge was built, covering, amongst other subjects, the spatial distribution of temperature and the dependency of the final gas temperature on fuelling conditions. Finally, a list of gaps on the subject of filling processes was identified which could serve as a roadmap for future researches. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.