GITAR is an interactive multi-layer GIS maps. It is a teaching aids, which translates the highly-technical scientific research ( on climate elements) into a schematic multimedia presentation that most laymen can easily relate. Borneo is selected as the case study. However, this is applicable and replicable to any tropical region. GITAR simplifies the concept of climatology. The interactive map diagram embedded in this project, is useful to communicate this complex subject more effectively. GITAR can be used either as a teaching tool or a support material in workshop.