Household spending was seen down 0.1 percent in November from a year earlier, the poll of 12 economists found, following a 0.3 percent fall in October and a 1.6 percent drop in September.
Analysts said spending on leisure activities and dining out performed well but consumers spent less on seasonal products such as winter clothing items and home electronics due to warm winter.
"Consumer sentiment is solid and wages are improving, so the environment for consumer spending is not necessarily bad. But data is likely to show figures which are not inspiring," said Takeshi Minami, chief economist at Norinchukin Research Institute.
The government will release household spending data at 8:30 a.m. Japan time on Jan. 11, Friday (2330 GMT on Jan. 10).
Separate data showed Japan's real wages rose the most in five months in November, reversing from a third straight month of drops, raising hopes for stronger domestic consumer spending to offset slowing external demand.
Data next week also include the nation's current account balance for November on Friday.
Japan's current account surplus likely fell to 567.6 billion yen ($5.22 billion) in November from a 1.3 trillion yen surplus in October.
Trade deficit due to weak exports was a part of the reason for narrowing current account surplus, analysts said.
The economy is seen bouncing back in October-December after contracting in the third quarter but there are concerns over risks such as global trade spat and recent volatile markets.
($1 = 108.8200 yen)
(Reporting by Kaori Kaneko; Editing by Gopakumar Warrier)
