Grinchmas Universal Studios Hollywood 2025. Here’s everything you need to know about the 2025 holiday season at universal studios hollywood which takes place daily from november 29, 2025 through january 6, 2025. Learn more about our incredible theme park attractions in california such as the wizarding world of harry potter™ and much more!

Learn more about our incredible theme park attractions in california such as the wizarding world of harry potter™ and much more! Grinchmas is back at universal studios hollywood grinchmas during holidays at universal studio.