EN
The aim of this study is the analysis of relative humidity in timber forest and open area at Kopciowa, near Krynica Zdrój in Beskid Sądecki Mountains. The data comes from psychrometric measurements from 1971-1982, which were collected at the Phytoclimatic Research Station of the Department of Forest Climatology. The lowest values of relative humidity were spring, on average 80% on open area and 85% in timber forest. The highest values were autumn, properly 91% on open area and 94% under forest canopy. In all time periods fluctuations of relative humidity they were small in forest. In individual seasons of year and in vegetation period also, the relative humidity was greatest in forest. The biggest differences, on benefit of forest stand, were in spring months (April, May), the smallest differences were in November and December, and they were on average 4%. The differences of relative humidity for decade periods were between 8 and 15%, in pentad periods from 15 to 30% and in individual days they achieved 50% even.