Halloween Horror Nights 2025 Hollywood Dates. — halloween horror nights 2025. — this thread is dedicated to all speculation & rumors for this year's halloween horror nights 2025 event at universal studios hollywood.
Et and runs until 2 a.m. — to celebrate spooky season, universal studios hollywood transforms on select evenings, giving guests quite the fright, with halloween horror nights 2025 kicking off on september 5th.