September is a fantastic time to shop at Costco, as the warehouse giant rolls out seasonal favorites, back-to-school essentials, and early holiday prep items. Whether you’re stocking up for fall or grabbing everyday staples, Costco’s latest offerings do not disappoint. Thanks to insider tips and customer favorites, here’s a list of the best things to buy at Costco this month, based on insights from Business Insider.
1. East-West Cuisine Chicken Katsu
This crispy, savory chicken katsu is an absolute winner for quick, delicious meals. Perfect for lunch or dinner, it pairs beautifully with rice and veggies, or you can turn it into a sandwich for a twist.
Why It’s Great:
- Convenient and ready to heat.
- Family-friendly meal option.
- Priced competitively compared to takeout.
2. Fall-Themed Décor and Supplies
Costco shines when it comes to seasonal offerings, and September is all about gearing up for fall. From pumpkin-scented candles to decorative gourds, Costco has everything you need to make your home cozy and festive.
Pro Tip:
Grab Halloween candy in bulk now before the October rush!
3. Back-to-School Snacks and Supplies
For families, September is a prime time to stock up on lunchbox favorites. Costco’s bulk snack packs, like granola bars, trail mix, and fruit snacks, are a lifesaver for busy mornings.
Must-Have Item:
- Kirkland Signature Organic Juice Boxes—perfect for kids on the go.
4. Fresh Produce and Bakery Treats
September brings a transition in seasonal produce. Look out for fresh apples, pumpkins, and squash to embrace fall flavors. Costco’s bakery section also offers crowd-pleasers like apple pie and pumpkin muffins.
Insider’s Tip:
Try the Kirkland Signature Pumpkin Cheesecake—it’s a seasonal favorite that sells out quickly.
5. Early Holiday Items
Costco is known for rolling out holiday goods well before the season starts. In September, you can find Christmas lights, wrapping paper, and even toys at unbeatable prices.
Why Shop Early?
- Beat the holiday rush.
- Lock in savings on big-ticket decorations and gifts.
6. Health and Wellness Products
As flu season approaches, Costco is stocked with vitamins, supplements, and over-the-counter medicines at discounted rates. The store’s Kirkland Signature allergy medications and immune boosters are customer favorites.
7. Rotisserie Chicken and Meal Kits
A Costco classic, the rotisserie chicken is perfect for quick dinners or meal prep. Pair it with pre-made meal kits like tacos or salads for an effortless weeknight solution.
Why It’s a Steal:
- Affordable and versatile.
- Great for feeding a crowd or creating multiple meals.
8. Kitchen Gadgets and Appliances
September often sees discounts on cookware and small appliances. Look out for deals on Instant Pots, air fryers, and premium knife sets. These items make perfect gifts or upgrades for your kitchen.
9. Outdoor Furniture and Grills
As summer inventory clears out, Costco offers major discounts on outdoor furniture and grilling equipment. It’s a great time to grab deals for next year or extend your patio season into fall.
10. Wine, Spirits, and Craft Beers
Costco’s alcohol selection is legendary, and September is a great time to try seasonal wines and craft beers. Kirkland Signature’s wine collection offers excellent quality at unbeatable prices.
Insider Pick:
- Kirkland Signature Prosecco—perfect for any celebration.



