The Tokyo Metropolitan Government reported 200 new cases of the coronavirus in the capital on Friday.
The daily tally has been below 300 for six days in a row.
The seven-day average up to Friday is 252.6. That's the lowest the average has been this year.
Tokyo officials say 93 patients are in serious condition, down seven from Thursday. This is the first time that the figure has fallen below 100 since July 31. The officials also say 14 people died.