He was born to a family of football players who left their mark on Celta de Vigo, coinciding at Celta with his brother Ángel Hermida, known as Carburo, and years later, another relative of his, his nephew, Manuel Hermida, known as Hermidita, became one of the great legends of the Balaidos club.

[1] On 11 March 1923, Hermida played in the last match that was held between these two rivals, which Sporting won 1–0, courtesy of a goal from Ramón González.

[2] Together with Polo Pardo, the Clemente brothers (Juanito, Balbino), Ramón González, he was part of the newly founded Celta team that won three Galician Championships in a row between 1923 and 1926.

[1] Like many other Fortuna de Vigo players of his time, he was eligible to play for the Galicia national team, and he was one of the eleven footballers that played in the team's first-ever game on 19 November 1922, a 4–1 win over a Castile/Madrid XI in the quarter-finals of the 1922–23 Prince of Asturias Cup.

[5] He also started in the semi-finals in yet another 4–1 win, thus helping the team reach the final, which ended in a 1–3 loss to Asturias, courtesy of a second-half brace from José Luis Zabala.