Carmela Tunay attended St Paul College in Makati City. She graduated with a degree in AB Communication Arts in the University of Santo Tomas and is currently taking up Masters in Marketing Communication in the UST Graduate school.
Tunay is a member of the UST Golden Tigresses, the collegiate varsity volleyball team of UST which plays in the UAAP Volleyball tournament. The Golden Tigresses finished 6th and 5th place in UAAP Season 76 and 77 respectively. In 2015, she joined the Cignal HD Spikers which plays in the Philippine Super Liga. During a game between the TIP and UST in the Shakeys V-League Collegiate Conference 2015, Tunay suffered a nose injury. Two weeks later she was back in action when UST played against the UP Lady Maroons, and in the semifinals against ADMU Lady Blue Spikers and eventually lost to FEU Tamaraws on the 3rd placer game .