Tanabata: Japan's star festival and the summer tradition of written wishes

Years ago I went to the Hiratsuka Tanabata with a group of friends. It was a July afternoon, the usual humid heat, so many people that moving through the main street was almost impossible, and everywhere you looked there were people in summer yukata. Streets covered by hanging colourful decorations, food stalls, ambient music. One of those Japanese summer festivals that leaves an impression even if you don’t know exactly what you’re celebrating.

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The story behind Tanabata

Tanabata (七夕, literally “seventh night”) commemorates a love story from Chinese folklore that was adopted in Japan during the Nara period (seventh-eighth centuries).

The legend tells of two stars: Orihime (織姫, represented by Vega) and Hikoboshi (彦星, represented by Altair), two lovers separated by the Milky Way. Orihime is a divine weaver; Hikoboshi is a cowherd. The celestial god allows them to meet just once a year, on the seventh night of the seventh month. If it rains that night, the river of stars rises and they cannot cross. They must wait until the following year.

The image is simple and poetic. There’s something in the idea of two people who can only meet once a year that connects emotionally without needing more context.

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The tanzaku tradition

The central practice of Tanabata is writing a wish on a small strip of paper called a tanzaku (短冊) and hanging it from a bamboo branch (笹, sasa). The belief is that if the wish is written sincerely, Orihime and Hikoboshi will carry it to the heavens when they meet.

At modern festivals this ritual has become something participatory and accessible: stalls hand out blank tanzaku, pens are available, and bamboo trees decorated with colourful paper strips are one of the most recognisable images of the Japanese summer. Wishes range from the intimate (health, exam success, requited love) to the comic. Public tanzaku hold all kinds of requests side by side.

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The main Tanabata festivals

Tanabata is celebrated across Japan, but a few festivals stand out for their scale or character:

Sendai Tanabata (仙台七夕まつり): the largest in the country. Held on 6, 7 and 8 August (following the lunar calendar) in Sendai, Miyagi Prefecture. The decorations are monumental: elaborate hanging ornaments fill the city’s covered shopping arcades, with local artisans preparing the pieces months in advance. If you’re looking for the most visually spectacular Tanabata, this is it.

Hiratsuka Tanabata (平塚七夕まつり): one of the “three great” Kantō Tanabata festivals alongside Anagawa and Shonan. Held in July in Hiratsuka, Kanagawa Prefecture. This is the one I attended. The main street is covered in colourful decorations and the matsuri atmosphere is intense: music, food stalls, crowds. More accessible from Tokyo than Sendai.

Asagaya Tanabata (阿佐ヶ谷七夕まつり): in the Asagaya neighbourhood of Tokyo. Known for its handcrafted decorations and more focused on local craftsmanship than mass tourism. Held in August.

Smaller Tanabata festivals take place in many cities and districts throughout July and August. Most neighbourhoods and municipalities have their own version with local touches.

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When it’s held: the calendar question

Here’s a detail that confuses many visitors: the original Tanabata corresponds to the seventh day of the seventh month of the lunar calendar, which in the Gregorian calendar usually falls in August. That’s why some festivals are held in July and others in August, depending on whether they follow the solar or lunar calendar.

The larger, organised festivals tend to have fixed dates:

• Hiratsuka and most Kantō festivals: early July (around 7 July)
• Sendai: first week of August (follows the lunar calendar)
• Asagaya: late July or early August

If you’re travelling to Japan in summer and want to see a Tanabata, both July and August work. It depends on the city.

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Yukata, food, and atmosphere

Tanabata is also an occasion to go out in a yukata (浴衣), the light summer kimono. At the bigger festivals, a noticeable portion of the crowd dress up, both young Japanese people and visitors who rent one for the occasion. Yukata rental with dressing assistance is available at many shops near the main festivals.

The food stalls (屋台, yatai) are inseparable from the experience: takoyaki, yakitori, kakigōri (shaved ice with syrup), grilled corn, okonomiyaki… Festival food, not fine dining, but part of the ritual.

The heat is real. Summer festivals in Japan in July and August happen under temperatures of 32-35°C with high humidity. Water and light clothing matter more than any other preparation.

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FAQ

Can you participate without knowing Japanese? Yes. Tanzaku and bamboo branches are at every stall and the ritual is visual and intuitive. Write your wish in whatever language you like.

Do the festivals charge entry? Street festivals are free to enter. You only pay for what you buy at the stalls.

Which is better, Hiratsuka or Sendai? Depends what you’re looking for. Hiratsuka is more accessible from Tokyo (around 40 minutes by train from Shinjuku). Sendai requires a longer trip but the decorations are on another level. If you’re already planning to visit Tohoku, Sendai in August is a clear stop. For other day trips from the Tokyo area, Nikko is another classic Kantō destination worth combining with a summer visit.

Is it worth going at night? Yes. At night the atmosphere changes. Lit-up decorations, slightly cooler air and a more relaxed crowd make the evening experience the most characteristic of Japanese summer matsuri.

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Tanabata isn’t the grandest festival on the Japanese calendar, but it has something most don’t: the human scale of a wish written on paper and hung from a branch. Amid the crowd, the decorations and the Japanese summer heat, there’s space for something quite personal.