TOKYO, Aug 6 (Reuters) - Japanese government bond yields jumped on Tuesday, rebounding from sharp declines in the previous session, while a weak outcome of the 10-year bond auction weighed on sentiment.

The 10-year JGB yield rose to as high as 0.95% after the auction, and was last up 13 bps at 0.885%.

JGB yields sank to their lowest level since April on Monday, following a decline in U.S. Treasury yields and amid a huge sell-off in Japanese equities.

"In addition to a sell-off after sharp declines in yields in the previous day, the market reacted to the weak result of the 10-year bond auction," said Yuki Matsuda, bond market analyst at Mizuho Securities.

The auction's lowest accepted price was below market expectations, while the tail, or the gap between the lowest and average price, widened to 0.5 point from 0.02 point at the previous auction.

Growth in real wages also might have weighed on sentiment, said Takahiro Ootsuka, senior fixed income strategist at Mitsubishi UFJ Morgan Stanley Securities.

Japan's inflation-adjusted real wages rose in June for the first time in more than two years as nominal pay gained at the fastest pace in nearly three decades, data showed, backing the central bank's view that wage increases are broadening.

Expectations of the Bank of Japan's rate hike have weakened after the yen strengthened in the past sessions, as a stronger yen reduces upward pressure on prices, said Matsuda.

The yen rose for five straight sessions to touch a seven-month high of 141.675 on Monday, although it weakened about 1% on Tuesday.

The 20-year JGB yield rose 17 bps to 1.7%.

The 30-year yield rose 19 bps to 2.1% and the 40-year yield rose 20.5 bps to 2.34%.

The two-year yield rose 2.5 bps to 0.285%, and the five-year yield rose 6.5 bps to 0.425%. (Reporting by Junko Fujita; Editing by Rashmi Aich and Varun H K)