It's off season. Though you can have a nice trip within reasonable budget. For itinerary you can refer my blog on Tripoto "Solo Traveller" and Mini Goa
Hi, July to September: These months constitute the monsoon season in Pondicherry. Attached with my comments you can check curated trips by fellow travelers. Please take a look. Thanks!
Pondicherry is best visited during the months of October to March as the temperature usually ranges between 15 - 30 degree celcius. Over the years, Pondicherry has truly been the gem of South India and an ideal vacation spot. Summers (April-June) are quite hot and the temperature touches 40 degree Celsius occasionally.