What weather do Indians wear sari?

Married women wear it all year round. In winter, they will put a sweater jacket or something like that on top of the sari.

Because, to be precise, there are only summer and winter there. It starts to be hot in April and May, and then it doesn’t start to get cold until December. Indian winter, the coldest month in January, is over 20 degrees Celsius during the day, slightly colder at night, more than 10 degrees Celsius, and drops below 10 degrees Celsius in the early morning. So in India, in winter, a sweater is enough.