Here’s a monthly breakup of LUCKNOW's climatic conditions so you can plan when to go:
Winters - October to mid-March
Winter months in Lucknow are bright and pleasant but the nights are chilly and misty. The temperature remains between 7 to 24-degrees Celsius which makes it a great season to visit Lucknow. During this time, the weather adds to the experience of exploring the tourist attractions like Haratganj, Bara Imambara, St. Joseph’s Cathedral, Chandrika Devi Temple, etc.
Summers - April to June
It is really hot and dry during the summer months in Lucknow. During this season, the average temperature goes up to 45-degrees Celsius. So be prepared if you wish to visit during these months as they are not very comfortable.
Monsoon - July to September
You can visit Lucknow during monsoon months too. This city receives moderate rainfall and the weather stays nice. The temperature ranges from 25 to 35-degrees Celsius during these months.