Japan's benchmark Nikkei stock index, the 225-issue Nikkei Stock Average, ended up 1,032.80 points, or 2.67 percent, from Friday at 39,740.44.
The broader Topix index, meanwhile, finished 51.19 points, or 1.92 percent, higher at 2,721.99.
Market watchers here noted the U.S. dollar was firm in the lower 149 yen range amid expectations that Japan's central bank is likely to maintain an accommodative monetary stance even if it decides to end its negative interest rate policy at its two-day policy meeting ending Tuesday.
A wide range of issues rose on the Tokyo market, as investors bought on dips after the markets' recent sharp falls, while the weakening yen lifted export-oriented issues including automakers, analysts said.
On the top-tier Prime Market, gainers were led by real estate, machinery and insurance issues.
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