If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Zenica: The hottest months are usually August and July with an average temp of 66°F, while the coldest months are January and February with an average of 36°F. The snowiest months in Zenica are January, December, April, and November, with each month seeing an average of 6 inches of snowfall.