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WinterFest 2026 at Six Flags Discovery Kingdom: crowd calendar

27 Nov 2026 to 3 Jan 202718 nightsVallejo, California, United States

WinterFest 2026 at Six Flags Discovery Kingdom runs 27 Nov 2026 to 3 Jan 2027 and is forecast moderately busy, averaging 65% crowd level. The quietest night is Sun 6 Dec at 57%, the busiest Sat 26 Dec at 79%.

Quietest night of WinterFest 2026

Sunday 6 Dec

WinterFest 2026 is forecast moderately busy at Six Flags Discovery Kingdom, averaging 65% crowd level across its 18 nights. The busiest is Saturday 26 Dec at 79%.

57%crowds
Next bestSun 29 Nov 59%Sat 5 Dec 61%Sun 13 Dec 61%

Across its 18 nights the forecast averages 65% crowd level, which is about a normal day for this park. Expect lines to average around 27 minutes park-wide on a typical night.

WinterFest is an evening event, so the crowd figures above describe the whole day at Six Flags Discovery Kingdom, not the event hours alone.

Every night, with the forecast

November 2026

  1. Fri2769%~29 min
  2. Sat2871%~32 min
  3. Sun2959%~23 min

December 2026

  1. Sat561%~24 min
  2. Sun657%~21 min
  3. Sat1262%~25 min
  4. Sun1361%~24 min
  5. Sat1962%~25 min
  6. Sun2061%~24 min
  7. Mon2161%~24 min
  8. Tue2261%~24 min
  9. Wed2361%~24 min
  10. Sat2679%~41 min
  11. Sun2774%~36 min
  12. Mon2871%~31 min
  13. Tue2968%~29 min
  14. Wed3068%~29 min
  15. Thu3167%~28 min

The 20 days inside the run that WinterFest does not operate on are forecast 21% on average, quieter than the event nights.

Quietest 0-15%Quieter 15-35%Typical 35-65%Busier 65-88%Busiest 88-100%

Dates as published by Six Flags Discovery Kingdom; always check the park's own site before travelling. 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. We score every past forecast against what the queues actually did and publish the result in the crowd forecast accuracy ledger.

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Frequently asked

When is WinterFest 2026 at Six Flags Discovery Kingdom?

WinterFest 2026 runs 27 Nov 2026 to 3 Jan 2027, on selected dates: 18 nights in total. Dates are as published by Six Flags Discovery Kingdom.

What is the quietest night of WinterFest 2026?

Sunday 6 Dec is forecast the quietest at 57% crowd level. The next best are Sun 29 Nov (59%), Sat 5 Dec (61%), Sun 13 Dec (61%).

What is the busiest night of WinterFest 2026?

Saturday 26 Dec is forecast the busiest at 79%. The 9 nights that fall in the Christmas (21 Dec to 31 Dec) average 68%.

How busy is WinterFest compared with a normal day at Six Flags Discovery Kingdom?

The event nights average 65% crowd level, about a normal day for this park. The 20 days inside the run that WinterFest does not operate on are forecast 21% on average, quieter than the event nights.

Do I need a separate ticket for WinterFest?

WinterFest runs in the evening. Check Six Flags Discovery Kingdom's own site for what your ticket includes on the day you visit.