Planning for the weather is a good way to make your trip to Lucknow relaxing and enjoyable, especially when you’re splurging. The hottest months are usually May and June with an average temp of 92°F, while the coldest months are January and December with an average of 67°F. The rainiest months in Lucknow are July, August, September, and June, with each month seeing an average of 10 inches of rainfall.