Abstract
Traveling is one of most popular tourism activity. Usually it is associated with the change of climate conditions. In a short time we can move to different environment and our organisms are under great pressure of atmospheric stimuli which have diverse level and range of variability in comparison to home location. The general climate information seem to be insufficient to be prepared to new conditions. The paper presents new complex index which can be used to assess contrasts of bioclimatic conditions (BCI). It was applied to compare differences in bioclimatic conditions in six stations represented various bioclimate regions of Poland: Koszalin (Coastal region), Białystok (North-East region), Warszawa and Wrocław (Central region), Rzeszów (South-East region) and Hala Gąsienicowa (Tatras, Carpathians region).