The accurate perception of culture-specific emotions of the people living in the host country, may be the most significant, and yet the most underestimated challenge for the international students in the process of adjusting to a new culture. The latest report of the Institute of International Education (IIE) about Russia, confirmed that, in the year 2020, around 353,000 international students are currently studying in the Russian Federation. The studies of van de Vijver in 2007 and 2009 have confirmed that the foreign students from former Soviet republics or former USSR countries (students from post-soviet states, not including Russia: Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Tajikistan, Turkmenistan, Ukraine and Uzbekistan) have lower degrees of perceived cultural distance with Russian culture, this can be explained by the fact that the students from former Soviet republics can speak Russian language fluently, and share religion and traditions with Russian culture. Consequently, the group of students from former USSR countries adapt better to Russia in comparation to the rest of international students. The results of our study in 2020, revealed that the perception of Russian culture-specific emotions among international students studying in the Russian Federation, is significantly predicted by the similarity between the culture of the international students living in Russia and the culture of Russian society. Moreover, our study confirmed that the group of students from former Soviet republics, or former USSR countries, perceived more similarities with Russian national culture; therefore, this result is consistent with the findings of the aforementioned studies of van de Vijver in 2007 and 2009. Thus, we can consider that the accurate recognition of Russian culture-specific emotions and the perceived similarities to Russian cultural standards, may be very significant for the international students studying in the Russian Federation, especially for their process of adjusting to Russian culture. Nevertheless, further research on this topic is needed.