Domingo said at the time he believed his "interactions and relationships were always welcomed and consensual," though he noted that "rules and standards" have changed.
In El Confidencial interview, Domingo again stopped short of flatly denying what the women allege, but insisted he had never behaved improperly.
He said Spaniards are naturally "warm, affectionate and loving."
"I have been gallant, but always within the limits of gentlemanliness, respect and sensitivity," he was quoted as saying.
He added: "Gallant gestures are viewed differently nowadays."
He insisted he "never behaved in the aggressive, stalking and vulgar manner that (the accusers) described."
U.S. opera houses canceled Domingo's upcoming performances following the accusations. Domingo resigned from the Los Angeles Opera, where he had been general director since 2003. The L.A. Opera is conducting an investigation into his alleged behavior.
Domingo said he felt he has been unfairly treated.
He said that the "credibility given to the accusations is automatic ... And I've felt prematurely judged, sentenced and convicted," though he has not been charged with a crime.
He said he had never abused his position of power. "I never promised a role in return for favors," he said.
Domingo said he had been through "the most difficult months of my life."
"Everything happened so quickly," he said. "I was able to sit back and reflect on it all only a few weeks ago."
The interview was published just days before Domingo is due to star in Giuseppe Verdi's "Nabucco" at Valencia's Palau de les Arts, starting Monday.
The sexual harassment allegations against Domingo have rocked the opera world in the United States, where he no longer has any appearances scheduled. But European theaters have stood behind him, maintaining all his scheduled dates.
Domingo told El Confidencial he has drawn strength from the support of European theaters and fans, and from family and friends who have stood by him.
"They have been difficult times but things have died down a bit. I'm keeping on working, studying, rehearsing and performing. That has provided me with the calm I need to face this nightmare," he said.
"I still feel strong and healthy."
- AP