It seems far too early to judge the degree to which warm weather mitigates this. There have been a growing number of cases in Australia and South America.

Also consider that in India, there is not only a massive population, but access to tests per capita is probably quite low. Furthermore, the background noise of other infectious diseases is higher there, so many of these cases may go unnoticed or just attributed to common ailments. Death by infectious disease, while tragic, is somewhat more normalized there, and it might be hard to convince a lot of people not to go about their daily lives.