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Six Flags Great Adventure crowd calendar, September 2026

September 202630 days forecast

Six Flags Great Adventure is typically quiet in September 2026, averaging 29% crowd level. The quietest day is Thu 17 Sep at 8%, and the busiest is Sun 6 Sep at 83%.

Best day left in September

Thursday 17 Sept

September 2026 is typically quiet at Six Flags Great Adventure, averaging 29% crowd level. The busiest is Sunday 6 Sept at 83%.

8%crowds
Next bestThu 24 Sept 8%Tue 15 Sept 9%Wed 16 Sept 9%

Six Flags Great Adventure is very quiet today, at around 17% crowd levels, and quiet tomorrow. This weekend is looking quiet. Six Flags Great Adventure is typically quiet in September 2026, averaging around 29% crowd levels. The quietest day to visit is predicted to be Thursday 17th (about 8%), while the busiest is Sunday 6th (about 83%). Weekdays are noticeably quieter than weekends, so a midweek visit means shorter queues.

Wondering how busy Six Flags Great Adventure will be in September 2026? This calendar predicts crowd levels day by day. The lower the score, the shorter the queues, so pick a quiet day and ride more.

Daily crowd levels and opening hours for Six Flags Great Adventure, September 2026
MonTueWedThuFriSatSun
142%Quietest14 min queues242%Quietest14 min queues342%Quietest14 min queues444%Quieter15 min queues571%Busier31 min queues683%Busiest48 min queues
780%Busiest43 min queues842%Quieter14 min queues943%Quieter14 min queues1044%Quieter15 min queues1117%*QuieterEst.17 min queues1231%*TypicalEst.25 min queues1326%*TypicalEst.24 min queues
1415%*QuieterEst.16 min queues159%*QuieterEst.14 min queues169%*QuieterEst.14 min queues178%*QuieterEst.14 min queues1817%*QuieterEst.17 min queues1930%*TypicalEst.25 min queues2025%*TypicalEst.21 min queues
2115%*QuieterEst.16 min queues229%*QuieterEst.14 min queues239%*QuieterEst.14 min queues248%*QuieterEst.14 min queues2517%*QuieterEst.17 min queues2629%*TypicalEst.25 min queues2725%*TypicalEst.21 min queues
2815%*QuieterEst.16 min queues2910%*QuieterEst.14 min queues309%*QuieterEst.14 min queues
  1. Tue1Hours unavailableSummer42%Quietest14 min queues
  2. Wed2Hours unavailableSummer42%Quietest14 min queues
  3. Thu3Hours unavailableSummer42%Quietest14 min queues
  4. Fri4Hours unavailableSummer44%Quieter15 min queues
  5. Sat5Hours unavailableSummer71%Busier31 min queues
  6. Sun6Hours unavailableSummer83%Busiest48 min queues
  7. Mon7Hours unavailableSummer80%Busiest43 min queues
  8. Tue8Hours unavailableSummer42%Quieter14 min queues
  9. Wed9Hours unavailableSummer43%Quieter14 min queues
  10. Thu10Hours unavailableSummer44%Quieter15 min queues
  11. Fri11Hours unavailableSummer17%*Est.Quieter17 min queues
  12. Sat12Hours unavailableSummer31%*Est.Typical25 min queues
  13. Sun13Hours unavailableSummer26%*Est.Typical24 min queues
  14. Mon14Hours unavailable15%*Est.Quieter16 min queues
  15. Tue15Hours unavailable9%*Est.Quieter14 min queues
  16. Wed16Hours unavailable9%*Est.Quieter14 min queues
  17. Thu17Hours unavailable8%*Est.Quieter14 min queues
  18. Fri18Hours unavailable17%*Est.Quieter17 min queues
  19. Sat19Hours unavailable30%*Est.Typical25 min queues
  20. Sun20Hours unavailable25%*Est.Typical21 min queues
  21. Mon21Hours unavailable15%*Est.Quieter16 min queues
  22. Tue22Hours unavailable9%*Est.Quieter14 min queues
  23. Wed23Hours unavailable9%*Est.Quieter14 min queues
  24. Thu24Hours unavailable8%*Est.Quieter14 min queues
  25. Fri25Hours unavailable17%*Est.Quieter17 min queues
  26. Sat26Hours unavailable29%*Est.Typical25 min queues
  27. Sun27Hours unavailable25%*Est.Typical21 min queues
  28. Mon28Hours unavailable15%*Est.Quieter16 min queues
  29. Tue29Hours unavailable10%*Est.Quieter14 min queues
  30. Wed30Hours unavailable9%*Est.Quieter14 min queues
Quietest 0-15%Quieter 15-35%Typical 35-65%Busier 65-88%Busiest 88-100%

Crowd levels are modelled from this park's own recorded queue times, school and public holidays, day of the week and the weather forecast, and may not always be right. Opening hours come from the park and can change. Always check the park's own site before travelling. We score every past forecast against what the queues actually did and publish the result in the crowd forecast accuracy ledger.

October 2026November 2026December 2026January 2027February 2027March 2027April 2027May 2027Full crowd calendar

Frequently asked

How busy is Six Flags Great Adventure today?

Six Flags Great Adventure is predicted to be very quiet today, at around 17% crowd levels. Lower percentages mean shorter queues.

How busy will Six Flags Great Adventure be tomorrow?

Six Flags Great Adventure is predicted to be quiet tomorrow, at around 31% crowd levels.

Is Six Flags Great Adventure busy this weekend?

This weekend Six Flags Great Adventure is looking quiet, at around 29% crowd levels on average.

When is the quietest day to visit Six Flags Great Adventure in September 2026?

Thursday 17th is predicted to be the quietest day to visit Six Flags Great Adventure in September 2026, at around 8% crowd levels.

When is Six Flags Great Adventure busiest in September 2026?

Sunday 6th is predicted to be the busiest day at Six Flags Great Adventure in September 2026, at around 83% crowd levels.

How busy is Six Flags Great Adventure in September 2026?

On average, Six Flags Great Adventure is quiet in September 2026 - around 29% crowd levels. Weekdays are usually quieter than weekends.

Is Six Flags Great Adventure busier on weekends?

Yes - Six Flags Great Adventure is typically busier at weekends than midweek in September 2026. Visit on a weekday for shorter queues.

What is the best time to visit Six Flags Great Adventure?

The best time to visit Six Flags Great Adventure is on its quietest predicted days - Thursday 17th is the quietest in September 2026 (about 8%). Arriving at opening also means the shortest waits.