Seahawks coach Pete Carroll said Saturday that Harvin will not be activated for Monday night's game against the St. Louis Rams.
"He won't be playing in this game," Carroll said after practice. "He won't be able to do it this quick. We're managing his rehabilitation and trying to do it right. We worked him hard [earlier this week], then we rested him.
"We'll continue to do that until his conditioning is caught up and he's ready to go."
Harvin, who had major hip surgery on Aug. 1 to repair a torn labrum, started participating in practice this week. The Seahawks have a three-week window, which started Monday, to activate Harvin off the physically unable to perform list.
"Next week is a little shorter, and that doesn't help us," Carroll said. "But we're just dealing with it day to day and we're really excited about getting this close to his return."
Carroll said he was pleased with how Harvin looked in practice earlier this week.
"He did fine," Carroll said. "He looked great when we were working him, and then we needed to rest him to make sure he can handle the workload.
"He's a hard-charger and he's not going to sit back. When he goes, he does, so we have to be sure and manage that. But we're totally pleased with how he's worked to get back. When we can do it, we will."