The Tokyo Metropolitan Government reported 539 new cases of the coronavirus in the capital on Saturday.
The figure is 63 fewer than a week ago and marks the 16th straight day of week-on-week decline.
The seven-day average of daily infections through Saturday is 571.0, or 87.8 percent of the figure for the previous week.
Tokyo's total count of coronavirus infections now stands at 160,247.
Officials say 78 coronavirus patients are in serious condition, eight more than on Friday.
Tokyo officials confirmed six deaths from the virus on Saturday.