Hi Ryan, welcome to planDisney!
Currently,
theme park reservations can be booked up to 120 days in advance. I just checked the
Theme Park Reservation Availability Calendar and I see availability at both
Disneyland Park and
Disney California Adventure Park during the last week of September, so you should be good to go ahead and purchase your
theme park tickets and make your reservations!
Also,
dining reservations can be booked up to 60 days in advance, so you're definitely within your booking window. I would start looking into these as soon as possible as the popular dining locations get booked very quickly!
Last but certainly not least, you chose a GREAT TIME to visit the Disneyland Resort!
Halloween Time at the Disneyland Resort starts on September 2, 2022, and lasts through October 31, 2022, so you'll be able to enjoy all the fun!
If you have any questions at all, please do visit us again!
See ya real soon!
Jin