September is the ninth month of the year in the Gregorian Calendar. It has 30 days.
- Sep 6: Michael Winslow is born.
- Sep 1: Series 3 LEGO sets are officially released.
- Sep 24: LEGO Mixels: Let's Mix! and LEGO Mixels: Meet the Mixels are published.
- Series 6 is released early in some areas.
- Sep 10: The LEGO website and Who's In The Mix updates for Series 6.
- Sep 18: A promo video for Mixels Rush is released on Cartoon Network UK's Youtube channel.
- Sep 26: A Quest for the Lost Mixamajig airs in the United States.