Tanabata (the Star Festival) celebrates the annual meeting of the deities Orihime (the Weaver Star, Vega) and Hikoboshi (the Cowherd Star, Altair), separated for most of the year by the Milky Way. According to the legend, the two deities are permitted to cross the river of stars to meet only on the seventh night of the seventh month. The festival has been observed in Japan since the 8th century and is one of the country’s five traditional seasonal celebrations (gosekku). Today Tanabata is celebrated with paper decorations, wish-writing on tanzaku strips, and, in several cities, spectacular festival processions and decoration installations that attract hundreds of thousands of visitors.
Sendai Tanabata Matsuri (August 6-8)
The Sendai Tanabata Festival is Japan’s largest and most elaborate. Unlike most of Japan where Tanabata follows the solar calendar (July 7), Sendai holds its festival in August following the lunar calendar, when summer weather is more reliable. The festival’s signature decorations are enormous hanging ornaments (kazari) constructed from bamboo poles, coloured washi paper, and traditional decorative elements: paper strips (tanzaku), paper kimono, a woven net (toami) representing fishing nets to catch good fortune, and a folded paper crane (origami). Each ornament can be 5-10 metres long; shopping arcades and streets fill with these cascading decorations creating tunnels of colour and paper that are unique to Sendai. Over 2 million visitors attend across the three festival days.
Hiratsuka Tanabata Matsuri, Kanagawa (July)
The Hiratsuka Tanabata Festival in Kanagawa Prefecture is Japan’s second largest Tanabata celebration. Held in July (the solar calendar date), the festival fills Hiratsuka’s shopping streets with decorations and food stalls. Less visually overwhelming than Sendai but more accessible from Tokyo (approximately 60 minutes by JR Tokaido Line), Hiratsuka provides a comprehensive Tanabata experience without the Sendai crowds.
Wish-Writing Tradition (Tanzaku)
The core domestic Tanabata practice is writing wishes on coloured tanzaku strips and hanging them on bamboo branches (sasadake). Each colour has traditional associations: yellow for good academic performance and work; pink/red for relationships; blue for self-improvement; white for sincerity; purple for study. Children write school-related wishes; adults might wish for good health, business success, or personal goals. Bamboo stands with hanging wishes appear at shrines, shopping centres, and stations throughout Japan in early July, and the collective display of thousands of personal wishes in public space creates an unusual form of community intimacy.
For context on Japan’s festival calendar, the guide to Japan festivals and events covers the full annual cycle of matsuri and seasonal celebrations.