When you're traveling with pets, keeping track of the weather can help you make the trip more safe and fun for everyone. The hottest months are usually August and July with an average temp of 72°F, while the coldest months are January and February with an average of 39°F. The snowiest months in Sremski Karlovci are January, November, April, and December, with each month seeing an average of 33 inches of snowfall.