The second in the computer-animated franchise, starring Neil Patrick Harris, Hank Azaria and the voice of Katy Perry as Smurfette, made its debut with AU$2,041,555, knocking White House Down from the top spot.
Riddick also made its debut on the Australian box office chart, entering in the second spot with AU$1,307,853 of earnings.
Blue Jasmine lands at number four as the week's third big new entry, narrowly missing White House Down by about AU$200,000.
Now You See Me stayed strong at number five this weekend, managing to amass AU$15,039,617 over six weeks in the chart.
We're The Millers and Elysium also enjoyed their fifth week in the chart, sticking at number six and seven respectively.
The box office chart for the weekend of September 12 to September 15 (all figures are in Australian dollars):
1. (-) The Smurfs 2 - $2,041,555
2. (-) Riddick - $1,307,853
3. (1) White House Down - $1,302,065
4. (-) Blue Jasmine - $1,073,332
5. (6) Now You See Me - $728,902
6. (5) We're the Millers - $596,597
7. (5) Elysium - $526,419
8. (3) RED 2 - $511,003
9. (-) R.I.P.D - $510,029
10. (4) The Mortal Instruments: City of Bones - $206,067
Watch the trailer for Riddick below: