ACNH March 2026 Event Guide: Shamrock Day, Seasonal Items, and Critter Changes
As the vibrant colors of Festivale fade into memory, the gentle breeze of March brings a fresh chapter to our deserted islands. Whether you are welcoming the first buds of spring in the Northern Hemisphere or bidding farewell to the golden days of summer in the Southern Hemisphere, March 2026 is packed with festive cheer and seasonal transitions.
Here is your comprehensive guide to everything happening in Animal Crossing: New Horizons this March.

Shamrock Day (St. Patrick's Day)
The highlight of March is undoubtedly Shamrock Day, a week-long celebration of Irish heritage and all things green.
- Event Duration: March 10th – March 17th
- Themed Apparel: Visit Able Sisters during the event to find the limited-time Shamrock Hat, Shamrock Suit, Shamrock Sunglasses, and Shamrock Shoes. It’s the perfect time to go green!
- DIY Recipes: Keep an eye on the skies! Shooting down balloons may reward you with the Shamrock Wand DIY recipe, allowing you to add a magical sparkle to your festivities.
- Nook Shopping Exclusives: The Nook Shopping terminal will feature exclusive Shamrock themed items, including the Shamrock Doorplate, Shamrock Rug, and Shamrock Soda. Don't forget to place your orders before the 17th!
March Seasonal Items (Nook Shopping)
Beyond Shamrock Day, several other global traditions are celebrated with unique items available through the "Seasonal" tab at Nook Shopping:
|
Item |
Availability |
Occasion |
|
Hinamatsuri Doll |
Feb 22 – Mar 3 |
A traditional Japanese decoration for Girl's Day. |
|
Blossom Lantern |
Feb 22 – Mar 3 |
A beautiful lantern to celebrate the Hinamatsuri season. |
|
Pi Pie |
Mar 1 – Mar 14 |
A delicious treat to celebrate Pi Day (March 14th). |
|
Whoopee Cushion |
Mar 26 – Apr 1 |
A classic prank item for April Fool's Day. |
Critter Rotation: Last Chance & New Arrivals
March is a pivotal month for collectors. As the seasons shift, many species are preparing to leave, while others are just arriving.
Northern Hemisphere: Spring is Blooming
• Leaving After March 31st:
Fish: Bitterling, Yellow Perch, Stringfish (Cliffside), Sturgeon (River Mouth), Sea Butterfly, Football Fish.
Bugs: Emperor Butterfly.
• New Arrivals: Look out for the Yellow Butterfly, Tiger Butterfly, Mantis, and the elusive Orchid Mantis on white flowers!
Southern Hemisphere: Autumn is Calling
• Leaving After March 31st:
Fish: A massive list of summer favorites is departing, including the Great White Shark, Hammerhead Shark, Whale Shark, Saw Shark, Arapaima, and Dorado.
Bugs: Many vibrant insects like the Emperor Butterfly, Agrias Butterfly, and various Stag Beetles will disappear at month's end.
• New Arrivals: The Red Dragonfly and various crickets will begin to appear as the weather cools.
Pro Tip: The Stringfish (Northern) and Sharks (Southern) are high-value and rare. If you haven't caught them yet, prioritize these before April 1st!
March Villager Birthdays
Don't forget to celebrate with your favorite neighbors! With over 30 villagers celebrating birthdays in March, we've only listed a few highlights below—including a very special guest:
- March 1st: Coco
- March 11th: Zipper T. Bunny (The face of Bunny Day!)
- March 25th: Celia
- March 31st: Boots
Whether you're hunting for the last winter fish or decorating your island with shamrocks, we hope you have a fantastic March! If you're looking to complete your seasonal collection or need specific DIY recipes, be sure to check out our latest listings at ACItemsBuy.
