São Matthias Nunes born in Benguela, Angola. She is graduated in Performativas Arts (Artes Performativas) and master's degree in Intermediate Visual Arts (Artes Visuais Intermédia) from the School of Arts of the University of Évora with the project:ludus interface – The random research in real-time artistic improvisation.

São Matthias Nunes finished the Sculpture Course at A.R.C.O. (Centro de Arte e Comunicação Visual) and the Music Course at the Academia dos Amadores de Música in Lisbon.

Also a graduate of Pharmaceutical Sciences, she made a scientific career at the same time as an artistic career. She won a research scholarship at the National Laboratory of Nuclear Engineering, where she was a scientific researcher between 1987 and 1990.

Since 1990 it exhibits regularly in galleries, biennials and other public and private spaces.He has held more than 15 individual exhibitions and 20 collective. From 1995 she inaugurated his exhibitions with performances in a connection with other artistic expressions such as music and dance.

As an actress she played characters in the plays Angels in the Devil's Hair, Mr. Urban, Tomb of Dogs, Beasts, Martírios and others. She created, staged and choreographed several multidisciplinary projects such as Action Painting and Playing (2003), 60 seconds, Pro*vocation (2004), Pintar a Música (2009), Ecos do Amor (2013) and Paradoxys (2014).She collaborates with orchestras and contemporary music and jazz groups.

In 2019 she was invited to participate in the MIA Festival (Improvised Music of Atouguia da Baleia).