Urban climate geovisualisation is at the crossroads of scientific questions in urban climatology, geomatics, and operational issues in urban planning. It is an emerging topic, addressed not only by research programmes such as MApUCE and PAENDORA, but also by territory planification actors such as the CNIG. The latter is an operational structure that has been established for the creation and maintenance of geographical standards, so for future potential urban planning and climate risks representation standards. This specific study focuses on urban climate maps and environmental data used in recent urban planning documents, as well as their standards and norms. We produced a critical panorama of the state of the art of these representations, followed by the description of the research conducted to create a semiological methodology adapted to the geovisualisation of these complex climate phenomena. We depict the importance of the methodology of representation in maps, based on a necessary knowledge of the specific data, on an adapted semiology, and, last but not least, the care given to the map's public.