Any time except the toll taking Monsoon unless you want to be stuck there in casualty it will be menace as a tourist to be there in monsoon with never ending traffic... best go in winters it got maritime climate
There are many beautiful places to visit in mumbai, but this has to be on the top of your list .. Marine Drive, Gateway of India, Bandra Worli sea link, Street shopping (specially in bandra, colaba) also do try out the Famous Mumbai ka vada-pav.
Hi, If you are asking about best time to visit Mumbai, then November to February: The winter months are the most pleasant in Mumbai.
March to May: Humidity starts rising from March and as summers start approaching.
June to October: This is the famous monsoon season in Mumbai which sees continuous rainfall, particularly in the months of July and August
Places to visit in Mumbai:
1. Gateway of India
2. Elephanta caves
3. Worli sea face link
4. Marine drive
5. Hanging garden 6. Siddhivinayak temple
7. Haji Ali
Take Mumbai Darshan bus in the morning from gateway of india, it will cover your most places.