The Tokyo Metropolitan Government reported 22,740 new cases of the coronavirus on Sunday.
The daily tally for the capital is down 3,573 from a week ago, and marks the ninth straight day of week-on-week declines.
The seven-day average through Sunday was 25,629. That's 80.8 percent of the figure for the previous week.
Tokyo officials said there were 42 seriously ill patients on ventilators or ECMO heart-lung machines, down one from Saturday.
They also said on Sunday that 13 people from their 50s to 90s had died from the virus.