Bank of Japan Governor Kazuo Ueda has plenty of data to support the case for raising the benchmark rate in December, an outcome that would mark the first tightening of policy three times in a calendar year since the peak of Japan’s asset bubble in 1989.

The Japanese yen rose to a six-week high against the dollar Friday. While trading was thin because of the Black Friday holiday in the U.S., the moves are still worth watching after volatility in the Asian currency sparked market turmoil earlier this year.

Bank of Japan Governor Kazuo Ueda said the timing of the next interest rate hike was "approaching" as the economy was moving in line with the central bank's forecasts, the Nikkei newspaper reported, leaving open the chance of a December rate increase.

Bank of Japan Governor Kazuo Ueda said interest-rate hikes are “nearing” as inflation and economic trends develop in line with the central bank’s forecasts, without explicitly supporting an increase in December.