Nashik vs Belagavi

Hi friends, I am from Delhi, looking for a place with good air quality and moderate weather in summers.

For my retired parents and for myself. I researched and found Belagavi and nashik in this regard. I'm fine with lack of job opportunities and no night life. I am looking for a place where pleasant weather (less intense heat in summers), good air quality, hindi language comfort, open minded people. I'm open to learning marathi but it will take time :-)