Here’s a monthly breakup of KOLKATA's climatic conditions so you can plan when to go:
The climate of Kolkata is divided into three main seasons: Summer - March to June Summer in Kolkata is extremely hot and humid with the maximum temperature easily reaching above 40°C. Kolkata exploration at this time of the month can be really sweaty and daunting. Summers can be sunny and extreme in Kolkata so, the visitors are recommended to avoid visiting this city between these months. However, if you are visiting the city in Summer, then don’t forget to carry light cotton clothes and a lot of sunscreen with you. Monsoon - July to September Monsoon starts from mid-June and stays till September in Kolkata. It receives heavy rainfall due to nearness to the Bay of Bengal. Since Kolkata is an amalgamation of both nature and history, there are several spots that you can definitely checkout in Kolkata during rain, including Mandarmani, Mukutmanipur, Jhargram, Bakkhali, and Sonajhuri forest. Winter - December to February
The weather of Kolkata during winters is pleasing and soothing. Mornings are foggy and evenings are chilly, winters in Kolkata is time for romance. The temperature at this time of the month remains between 10°C to 15°C. Winter is the peak tourist season in Kolkata. Durga Puja, the major attraction of Kolkata is also celebrated in Autumn.