Also If visiting during the season, one may want to witness the festivals celebrated in Hampi. The ancient festival of Vijaya Utsav is celebrated in November. The festival has been a part of the culture since the time of the Vijayanagara Kingdom and is an extravagant celebration with folk music, dance, art and colours all around. The Purandara Festival is celebrated in January/February for 2-3 days to mark the birth anniversary of Purandara who was a poet/ composer from the medieval times. It is a Classical Music Festival which is a treat to all the music lovers. Several renowned national and international musicians participate in this grand cultural fest which is held near the Vittala Temple. The State Government also arranges some more concerts in the market area in front of the Virupaksha temple. These concerts have stunning arrangements with bright, colourful lights that are a treat to watch.
As Hampi is surrounded by big boulders(stones) from all sides, hence it remains hot most of the time. So best time to visit would be peak winter's i.e. December or January.
October to November last is best. please read my blog titled "Exploring Hampi Badami Aihole and pattadakkal in 4 days" you will get all information regarding your tour to Hampi