The Tokyo Metropolitan Government says it confirmed 3,081 new cases of the coronavirus in the capital on Sunday.
The daily tally is down 1,311 from a week ago, and marks a week-on-week decline for the seventh day in a row.
Tokyo's seven-day average of new infections through Sunday was 3,784, down 20 percent from the previous week.
The seven-day average has declined from a week earlier for the fifth straight day.
The total number of cases in the capital now stands at 338,750.