Planning for the weather is an important factor for making your trip to Jamshedpur a success, especially when you're splurging. The hottest months are usually April and May, with an average temperature of 32°C, while the coldest months are January and December, with an average of 22°C. The rainiest months in Jamshedpur are August, July, September and June, with each month seeing an average of 294 mm of rainfall.