Weather is probably a major factor when you plan your trip to Kalka, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually June and May, with an average temperature of 30°C, while the coldest months are January and December, with an average of 15°C. The rainiest months in Kalka are July, August, September and June, with each month seeing an average of 184 mm of rainfall.