If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Ceske Budejovice: The hottest months are usually July and August with an average temp of 63°F, while the coldest months are January and February with an average of 34°F. The snowiest months in Ceske Budejovice are December, January, April, and November, with each month seeing an average of 6 inches of snowfall.