In the summer 2010, Artur Moraes left for Portuguese side Braga, as the club had recently lost starter Eduardo and back-up Paweł Kieszek.

Artur Moraes initially served as the backup to Mário Felgueiras as the 2010–11 UEFA Champions League third qualifying round, as new signing Quim was out injured.

In the 2012–13 season, Artur Moraes' performances worsened with various mistakes against Porto, Estoril and in the Portuguese Cup final defeat to Vitória de Guimarães.

[10] After a string of mistakes midway through the 2013–14 campaign, Jorge Jesus dropped him in favour of Jan Oblak, and the latter went on to keep several clean sheets in his first starts, notably in a 2–0 home win against Porto.

[13] After Oblak's departure to Atlético Madrid, Artur Moraes regained his place in the starting XI in the Supertaça Cândido de Oliveira, being an important part in the victory over Rio Ave, saving three penalties in the shootout.

[14][15] On 31 August 2014, in a Lisbon derby, Artur Moraes erred by giving the ball away to Sporting Clube de Portugal striker Islam Slimani, who scored the equalizer.