The aim of this study was determine the effects of different environment temperatures on motor characteristics and muscle strength. 15 athletes participated to study. Flexibility, vertical jump, hand grip-leg strength, 30m sprint, 20-meter shuttle run and coordination-agility tests were measured in five different environment temperatures. (22°C, 10,5°C, 0°C, -5,5°C ,-11°C). Kolmogorov-Smirnov test was used to determine whether the data showed normal distribution. ANOVA was used to compare the data for normal distribution and Kruskal-Wallis-H test was used for showing not normal distribution. Additionally, Tukey test and Mann-Whitney U test were used for meaningful difference. The significance levels were taken as 0.01 and 0.05. Significant changes were found all measured parameters compared to cold environment and Significant differences were found in all motor scores except anaerobic capacity (p <0.05). In all sport activities done in hot environment, higher efficiency is obtained compared to those done in cold environment and therefore, performances of athletes increase depending on the environment temperature.