Jersey Week is the trap, and it is not on any calendar you already have
The New Jersey Education Association convention closes most New Jersey public schools for a couple of days in early November, and the resulting travel wave lands squarely on Walt Disney World. It reliably produces a busy week in what people have been told is a quiet month, and because it is a single-state break it appears in no national school calendar and no generic seasonal guide.
The actionable move is to look up the convention dates for your travel year before choosing an early-November week, and to book the week after it rather than the week of it. The difference between those two weeks is large.
Disneyland is unaffected by this entirely, which makes early November one of the months where the two resorts genuinely diverge in a way that should influence which one you pick.
Thanksgiving is an eight-day event with a soft center
Treating Thanksgiving as a Thursday problem is the standard mistake. Attendance builds from the preceding weekend as families travel, holds through the holiday, and peaks on the Friday and Saturday after — those two days are the worst of the month at both resorts.
The counterintuitive detail: Thanksgiving Day itself is frequently the softest day of that week at Magic Kingdom, because a meaningful share of visitors are at a holiday meal rather than in a queue for the middle of the day. A family willing to eat an early or late dinner can get a genuinely good park day on the holiday.
If the dates are fixed to the week, arrive before the preceding weekend and leave on the Friday rather than arriving on the Wednesday and staying through the weekend. The front of the week is materially better than the back.
The EPCOT festival changeover leaves a gap in the middle of the month
The Food and Wine Festival ends in mid-November and the Festival of the Holidays begins in mid-November, and they do not overlap cleanly. In most cycles there are several days with neither festival fully operating while the booths are physically changed over.
If the festival is the reason EPCOT is on your itinerary, that gap is worth checking before you fix the dates. It is a small window and it is entirely avoidable, and it is the sort of thing that only becomes visible once you know to look for it.
The upside of the changeover week is that the rest of the park is at its quietest point of the month, so it is a good week for the attraction side of EPCOT and a poor one for the eating side.
The early holiday party nights are a different product at the same event
Mickey's Very Merry Christmas Party starts in early November and Disney Jollywood Nights starts in mid-November, and in both cases the earliest nights of the run are the least attended and sit at the lower end of their price bands. The content is the same; the calendar simply has not convinced people that early November is Christmas.
A first-week Very Merry night is a genuinely relaxed evening in Magic Kingdom. The same event in the week before Christmas is a very different experience at a higher price, and it sells out months earlier.
The tradeoff to know about: the very earliest nights sometimes run before every seasonal element is fully installed. If a specific parade, show, or overlay is the reason you are buying, that is worth verifying rather than assuming.
Disneyland puts its holiday overlay up before the crowds arrive
Holidays at the Disneyland Resort installs in mid-November and runs into January, and the seasonal ride overlays, the castle lighting, and the holiday parade are all daytime content available on ordinary park admission. No hard ticket is required for any of it.
The gap between when the overlay goes up and when the holiday crowd arrives is roughly two weeks, and it is the single best window at Disneyland in the fourth quarter. A weekday in the back half of November delivers the full holiday installation at close to shoulder-season crowd levels.
Plan for early darkness. Anaheim sunsets fall before 5 PM through November, which means the lighting looks its best from dinner onward and any daylight photography has to happen before mid-afternoon.