The slave ship Zéfiro departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Brazil.

Vessel: Zéfiro; flag: Portugal / Brazil; rig: Barqua. People recorded in connection with the voyage: Captain: Porto, Antônio Alves da Silva; Investor: Porto, Antônio Alves da Silva; Captain: Luz, Antônio José da. The voyage began at Rio de Janeiro on 31 August 1828. Principal recorded place where captives were acquired: Mozambique (East Africa and Indian Ocean islands). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 54 days. Estimated mortality during the crossing: 3.0%. Recorded outcome: Voyage completed as intended.