Planning for the weather is a good way to make your trip to Kopaonik relaxing and enjoyable, especially when you're splurging. The hottest months are usually August and July, with an average temperature of 15°C, while the coldest months are January and February, with an average of -2°C. The snowiest months in Kopaonik are January, November, April and December, with each month seeing an average of 49 cm of snowfall.