Planning for the weather is an important factor for making your trip to Karjat a success, especially when you’re splurging. The hottest months are usually April and March, with an average temperature of 28°C, while the coldest months are January and December, with an average of 25°C. The rainiest months in Karjat are July, August, September and June, with each month seeing an average of 670 mm of rainfall.