The best time to visit Pondicherry is from October to March as the weather during these months is pleasant for sightseeing. The temperature during this time usually ranges between 15 - 30 degrees Celcius. Summers (April-June) in Pondicherry are quite hot and the temperature touches 40 degrees Celsius. Monsoons (July-September) is a slightly better time to visit Pondicherry despite the rainfalls. Having said that, the best time to visit Pondicherry varies from person to person as the place transforms itself every season and celebrates a range of festivals which interest a lot of tourists.