The flagship state-owned newspaper Al-Ahram also raised its estimate of turnout in the March 26-28 election to 42.08 percent, saying 25 million of Egypt's 60 million registered voters had cast ballots.
On Tuesday, the paper had reported that Sisi was reelected with 92 percent of the vote on a turnout of just over 40 percent.
It gave no explanation for the upward revisions.
Sisi, who as army chief ousted Egypt's first freely elected president -- Islamist Mohamed Morsi -- after mass street protests in 2013, won his first term in 2014 with 96.9 percent of the vote.
The only other candidate on the ballot paper this year, Moussa Mostafa Moussa, won 3.1 percent of the vote, Al-Ahram said.
Moussa, a little-known politician who is himself a supporter of the president, registered immediately before the close date for applications, saving the election from being a one-horse race.
The National Election Authority is scheduled to announce the full official result on Monday.
Moussa conceded defeat on Wednesday evening, saying he had hoped for 10 percent of the vote but knew all along that he was up against the "immense popularity" of the president.
More heavyweight would-be challengers were all sidelined, detained or pulled out.
Opposition groups had called for a boycott of this week's vote which they labelled a charade.
Even at 42 percent, turnout was down on the 47 percent in the 2014 election despite appeals from Prime Minister Sherif Ismail for voters to fulfil their patriotic duty.
AFP
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