When you're planning your getaway to Tomislavgrad, year-round temperatures and rainfall may be important factors to consider. The hottest months are usually August and July, 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 Tomislavgrad are January, December, April and November, with each month seeing an average of 15 cm of snowfall.