Children's Day

Children’s Day in Japan, known as Kodomo no Hi (こどもの日), is a national holiday observed annually on May 5; in 2026, it falls on Tuesday, May 5. The holiday celebrates children’s happiness, health, growth, and individuality, while also expressing gratitude to mothers and families. It is the final holiday of Golden Week, Japan’s major late-April and early-May holiday period.

The modern holiday developed from Tango no Sekku, a traditional seasonal festival historically associated with boys and the samurai class. Tango no Sekku incorporated older Chinese customs connected with the beginning of summer, purification, and protection from illness, including the use of medicinal iris leaves. During the Edo period, samurai families displayed armor, helmets, and warrior dolls to symbolize strength and wish for sons’ success. In 1948, the Japanese government officially established May 5 as Kodomo no Hi and broadened its meaning to include all children, although many historic boys’ festival customs remain part of the celebration.

Today, Children’s Day reflects both continuity and change in Japanese family culture. Koinobori carp streamers still represent courage and perseverance, inspired by the carp’s ability to swim upstream, while miniature kabuto helmets and warrior figures connect the holiday with traditional ideals of protection and healthy development. The day is celebrated nationwide, from family homes and schools to parks, shopping districts, and public festivals, making it one of Japan’s most recognizable cultural holidays.

A central Children’s Day custom is displaying koinobori, colorful carp-shaped windsocks traditionally flown outside homes. The carp are often arranged with a large black carp for the father, a red or pink carp for the mother, and smaller carp for the children, although contemporary designs vary. Families may also display kabuto ornaments, miniature armor, or protective warrior dolls indoors. These decorations are intended to express hopes that children will grow strong, healthy, brave, and successful.

Traditional foods associated with Kodomo no Hi include kashiwa mochi, rice cakes filled with sweet bean paste and wrapped in oak leaves, and chimaki, steamed sticky-rice dumplings wrapped in bamboo or reed leaves. Oak leaves symbolize the continuation of the family line because old leaves remain until new leaves appear, while chimaki reflects the holiday’s historical links to East Asian seasonal customs. Some families also enjoy festive meals featuring sushi, seasonal vegetables, and other favorite dishes. Bathing with iris leaves, known as shōbu-yu, is another long-standing practice; iris is associated with strength and protection because of its sword-like leaves.

Children may receive small gifts, spend time with relatives, visit festivals, or take part in school and community activities. Public spaces often feature large koinobori displays, craft workshops, and cultural events. Common greetings include “Kodomo no Hi omedetō gozaimasu” (Happy Children’s Day) and “Sukoyaka ni sodate” (May the children grow up healthy). The holiday’s broader message is often expressed through wishes for children’s happiness, safety, and bright futures rather than through a single formal greeting.