Tim Robinson, a member of the Northland Chamber of Commerce board, said the improvement may be evidence of increased activity in Northland's farming sector.
"Although agriculture is still straining under debt and the banks wanting capital repayment done, it does possibly indicate that there actually is a level of farm income flowing back into the local economy," Mr Robinson said. "People actually are spending something."
Nationally, seasonally-adjusted retail sales dipped 0.8 per cent since the June quarter.
Supermarket and grocery sales dipped 1.6 per cent, motor-vehicles and parts sales dropped 1.8 per cent and fuel retailing was down 1.9 per cent but Business NZ chief executive Phil O'Reilly said the decline was minor: "It's not bad especially as the New Zealand economy faces really significant headwinds."