The paper presents evaluation of biothermal conditions in Szczecin with the use of new UTCI index. The special thermal sensation scale was proposed in this purpose basing on Baranowska's scale. Baranowska's scale was developed for the territory of Poland taking into consideration usual clothing habits for particular seasons. The new scale bases on close relationships between UTCI and Effective Temperature Index and it can be the used as a background for future research of universal thermal sensation scale for Poland.