August 9, 2006 - Co Adriaanse resigns as manager of Porto
August 16, 2006 - Jesualdo Ferreira is announced as the new manager of the champions Porto
August 19, 2006 - Porto defeats Vitória de Setúbal 3–0 in Leiria to win the SuperCup Cândido de Oliveira with Rui Barros commanding the team
August 23, 2006 - Courts confirm that Belenenses will play instead of Gil Vicente due to the Mateus affair. The following days met much controversy: the day the league started, it was still not known which teams would play in the major league.
August 25-August 28, 2006 - The Primeira Liga and Liga de Honra seasons begin.
September 1, 2006 - The Portugal national team plays its first game since the 2006 FIFA World Cup, against Denmark
September 3, 2006 - The Taça de Portugal and the Second Division seasons begin.
September 10, 2006 - The Third Division season begins
September 17, 2006 - The Serie Azores of the Third Division begins in the archipelago of the Azores
The summer transfer window runs from the end of the previous season until 31 August.
The Selecção played its first game against Denmark in September, losing to the Northern European side. After that friendly, the national team started its qualification for UEFA Euro 2008 with a draw against Finland.
Key
H = Home match
A = Away match
N = Neutral field
F = Friendly
ECQ = European Championship Qualifier
