There are many good reasons to come back to India. Weather isn’t one of them.
If you go strictly by the mercury, Mumbai should be pretty heavenly. The monthly average temperatures in the city according to weather.com are remarkably steady. The lows are in the mid-seventies, and highs are in the mid-eighties. A sort of Puerto Rico, if you will. In fact, the average temperature charts of Mumbai and Puerto Rico look remarkably similar.
All of which is divine and ‘party-time’-y, till you add in the humidity.