Weather will likely play an important role when you plan your trip to Jihlava, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually August and July, with an average temperature of 16°C, while the coldest months are January and February, with an average of 0°C. The snowiest months in Jihlava are December, November, April and January, with each month seeing an average of 26 cm of snowfall.