Birthdays

Birthdays are celebrated for all Island Residents during a yearly Birthday Celebration. Island Visitors may also have recognized birthdays but do not receive full celebrations.

For the Collection, see "Birthdays (Collection)".

Birthday Celebrations

Currently, during a birthday celebration, the following content is available:

• Birthday Quests: A special quest that grants birthday-related rewards. It can only be completed once and does not repeat if the player has completed it in a previous year.
  • Party Favors: Birthday Quest reward, meant to be used as a commemorative cabin decoration.
  • Birthday Balloons (as Crafting Plans): Birthday Quest reward; the balloons are cabin decorations only.
• Decorating Kits: Materials given as a bonus during the celebration when gathering other materials around the island. The specific materials that must be gathered depend on the Friend.
  • Birthday Cakes: Food items cooked at the  Oven with a Decorating Kit and  Flour. A Friend has special dialogue the first time the player gifts them their birthday cake.

Not all Island Residents have Decorating Kits and Birthday Cakes made available yet, as they were only added to the game in 2025.  Apple Arcade received Decorating Kits starting with  Cinnamoroll after the version 2.4 update.  Steam (PC) and  Nintendo Switch received Decorating Kits starting with  Chococat after Content Update 1.

This Month's Birthdays

The below display lists the Island Resident and Island Visitor birthdays during the current month.

Birthdays in June

Date	Character(s)
June 3	George White
June 6	Berry
June 27	Cappuccino

Island Residents' Birthdays

Note: The dates of birthday celebrations may change between years. The first addition of non-quest content for birthdays was Cinnamoroll's Birthday Celebration in 2025.

Island Visitors' Birthdays

On a visitor's birthday, a visitor has a 100% chance of visiting an unoccupied satisfactory cabin, even if the visitor is not currently traveling.

Only visitors with birthdays confirmed for use in Hello Kitty Island Adventure are listed below. Even if known in Sanrio media elsewhere, a birthday cannot be used in the game until Sunblink receives official confirmation/permission.