Hey there Robert,
Welcome to planDisney and thanks so much for your question! I'm glad to hear you're thinking about taking a trip to the Disneyland Resort later this year.
Both
Disney California Adventure Park and
Disneyland Park are open every day - though their operating hours vary depending on the season - so it's a safe bet to plan your trip for October 13-19 knowing that the parks will indeed be open during this time.
As you get closer to your trip, I would recommend checking the
Hours & Events Calendar to get the exact operating hours for each park! This helpful page will also show you all the planned events and entertainment for each day in the parks as well. Keep in mind that this calendar is available for about six weeks from the current date, so you'll want to wait until early September to see the schedule for the dates of your visit.
Additionally, you'll be visiting during the
Halloween season! I had a chance to visit during this season last year with my son and we had a blast! You'll get to see some Halloween-themed decorations around the resort as well as spooky fun entertainment and characters dressed up in their Halloween costumes. My recommendation would be to keep an eye on the
Disney Parks Blog for more details on what to expect during the Halloween season this year.
Thanks again for your question, Robert! I hope you have a wonderful time visiting the Happiest Place on Earth.
Have a Magical Day,
Greg