Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/1998 |  | Barny | DF |  | Os Belenenses | Belenenses |
| 07/1998 | | Gabriel | DF |  | Rio Ave FC | Rio Ave FC |
| 07/1998 | | Néné | DF |  | Portimonense SC | Portimonense SC |
| 07/1998 | | Vieira | DF |  | GD Chaves | GD Chaves |
| 07/1998 | | Jorge Duarte | MF |  | FC Tirsense | FC Tirsense |
| 07/1998 | | José António | MF |  | Leixões SC | Leixões SC |
| 07/1998 | | Ricardo Nascimento | MF |  | Varzim SC | Varzim SC |
| 07/1998 | | Rui Lima | MF |  | Gondomar SC | Gondomar SC |
| 07/1998 |  | Massaudu Naddah | FW |  | União Torreense | Torreense |
| 07/1998 | | Octávio | FW | | Leixões SC | Leixões SC |
| 07/1998 | | Rui Alberto | FW | | Varzim SC | Varzim SC |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/1998 | | Orlando Silva | GK | | GD Chaves | GD Chaves |
| 07/1998 | | Cabral | DF | | Os Belenenses | Belenenses |
| 07/1998 | | José Carlos | DF |  | GD Ribeirão | GD Ribeirão |
| 07/1998 | | Madureira | MF |  | Académica de Coimbra | Académica |
| 07/1998 | | Miguel Simão | MF |  | St. Johnstone FC | St. Johnstone |
| 07/1998 | | Ricardo Oliveira | MF |  | FC Vizela | Vizela |
| 07/1998 | | Armando Silva | FW |  | AD Fafe | AD Fafe |