Tokyo confirmed 989 new cases of COVID-19 on Tuesday, down by about 200 from a week before.
The seven-day average of new cases came to 791.4, compared to 891.0 a week earlier.
The number of severe cases under Tokyo's criteria remained the same as Monday at eight, while six deaths linked to the virus were reported on Tuesday.
On Monday, Japan reported 4,150 new cases, down by some 1,000 from a week before.
The number of severely ill COVID-19 patients fell by one from the previous day to 131, while 37 new coronavirus deaths were confirmed.