Ypu can travel to the places where you feel cool.. because July is a month where sun bombards like anything... places like moussoorie, chopta-tugnath, hemkhund sahib... are great... you'll get a amazing experience
If you want to travel the South of india ther are many places
Goa, Gokarna, hampi, mysore, pondi, kanyakumari, munnar, kerala.
if not south you have more other options of Rishikesh, trekking in Himalays, or northeast states.
There are number of places to visit in india. Happy Travelling!