Planning for the weather is an important factor for making your trip to Ilidža a success, especially when you’re splurging. The hottest months are usually August and July, with an average temperature of 18°C, while the coldest months are January and February, with an average of 1°C. The snowiest months in Ilidža are January, December, November and April, with each month seeing an average of 14 cm of snowfall.