At the Teatro Experimental do Porto, where, under the direction of António Pedro, she performed O Crime da Aldeia Velha by Bernardo Santareno.
She was then invited by António Lopes Ribeiro to participate in the film O Primo Basílio, where she was distinguished with the SNI "Best Actress" award.
She belonged to the cast of Companhia Rey Colaço-Robles Monteiro for several years (Teatro Nacional D. Maria II).
On television she made some soap operas, telefilms and several series, such as: "A Mala de Cartão" (1988); "A Morgadinha dos Canaviais" (1990); "Cluedo" (1995); "Filhos do Vento" (1997); "Casa da Saudade" (2000); "Estação da Minha Vida" (2001) and "Hotel Cinco Estrelas" (2013).
Guimarães died from complications related to COVID-19 at the Hospital Santa Maria in Lisbon on 2 February 2021, aged 93, during the COVID-19 pandemic in Portugal.