If you’re looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Ceske Budejovice: The hottest months are usually July and August, with an average temperature of 17°C, while the coldest months are January and February, with an average of 1°C. The snowiest months in Ceske Budejovice are December, January, November and February, with each month seeing an average of 15 cm of snowfall.