TOKYO — Japan's real wages climbed 2.4 percent in July from a year earlier, marking the largest annual increase since May 2021 and the seventh consecutive month of gains, government data showed Tuesday.

Nominal wages, or total cash earnings, increased 4.7 percent to 436,401 yen a month—the fastest pace since January 1997 and well above economists' forecasts of 3.8 percent.

Base pay rose 4.1 percent, its fastest increase since April 1992, accelerating from 3.5 percent in June. This marked the sixth consecutive month above 3 percent, a streak not seen in 34 years. Overtime pay growth slowed slightly to 3.1 percent from 3.4 percent, while special payments jumped 6.3 percent.

A labor ministry official attributed the real wage gain to steady growth in nominal wages, relatively mild inflation, and the boost from special payments.

The inflation rate used to calculate real wages increased to 2.2 percent in July, up from 1.9 percent in June—the first time it reached 2 percent this year.

Bank of Japan Governor Kazuo Ueda said last week the central bank would discuss raising rates at upcoming meetings, including the one scheduled for Sept. 17-18. He specified that the decision would depend on whether inflationary risks were heightening. Markets have largely priced in a rate hike at that meeting.

The wage data reinforces a key precondition for tightening: clear evidence of durable wage growth that can sustain consumption. With a rate hike widely anticipated, the figures give the Bank of Japan greater confidence to signal further tightening measures. Such moves could support the Japanese yen and push Japanese Government Bond yields higher. JGB yields are already at 30-year highs.

Higher yields present mixed signals for stocks. Exporters within the Nikkei stand to benefit from stronger domestic demand and continued corporate earnings strength. Rate-sensitive sectors would likely face additional pressure if JGB yields continue climbing.

The Bank of Japan has long been cautious that raising rates might stifle the wage-led recovery it aims to foster. Seven months of real wage acceleration and the fastest nominal pay growth in nearly three decades now remove that hesitation.