Illustrated Japanese Culture

Tanabata: stars, wishes and different summer calendars

七夕（たなばた）

Tanabata is a Japanese seasonal observance combining a Chinese star legend, prayers for skills and local customs. People commonly hang written wishes on bamboo; community celebrations range from household displays to large street festivals.

Write a wish, thread the paper strip and tie it to bamboo. This shows a household activity; festival dates and decorations vary.
01The paper strips are called tanzaku.
02The star figures are Orihime and Hikoboshi, associated with Vega and Altair.
03Celebrations may follow July, August or traditional-calendar dates.

01

The story and the decorations

Two stars in a legend

A familiar version tells of Orihime, a weaver, and Hikoboshi, a cowherd. After marriage they neglect their work, so the heavenly ruler separates them across the Milky Way, allowing one annual reunion if they work diligently. Orihime is associated with Vega in Lyra; Hikoboshi with Altair in Aquila.

Tanzaku and other paper ornaments hang from bamboo.

Writing a wish

Tanzaku are narrow paper strips for writing. Hung from bamboo with other paper ornaments, they make wishes visible. Earlier prayers for skill in needlework form part of the observance’s history.

GregorianJuly 7
One month laterAround August 7
Traditional calendarSeventh day of seventh month
Gregorian date varies

Three dates to recognise

Some communities celebrate on July 7, others on August 7. A celebration following the seventh day of the seventh lunisolar month falls on a different Gregorian date each year.

Vega and Altair remain separate starsVega and Altair remain separate stars
A symbolic arrangement, not a scaled star chart.

Looking at the real sky

Vega and Altair remain separate stars. From a dark observing site, the Milky Way appears between them. Gregorian July 7 often falls in the rainy season, and its moon phase varies. Traditional Tanabata falls near a first-quarter moon, so its observing conditions differ.

02

What people make, eat and sing

Paper garment ornament from Sendai Tanabata.
Paper cranes ornament from Sendai Tanabata.
Purse ornament from Sendai Tanabata.
Net ornament from Sendai Tanabata.
Basket ornament from Sendai Tanabata.
Streamer ornament from Sendai Tanabata.

Sendai’s seven ornaments

Sendai pairs seven paper forms with wishes: strips for learning and calligraphy; garments for sewing and protection; cranes for health and longevity; purses for prosperity; nets for harvests and fishing; baskets for cleanliness and thrift; and streamers for weaving skills. These are the local festival’s explanations.

Noodles and a school song

Sōmen noodles can evoke weaving threads or the Milky Way in Tanabata meals. The song Tanabata-sama belongs to modern school-song history: it appeared in the 1941 textbook Uta no hon, lower volume.

Take decorations down and follow local disposal rulesTake decorations down and follow local disposal rules

After the display

Some older customs sent decorations away on water. Today, Jishu Shrine’s guidance asks households to follow their municipality’s disposal rules. Descriptions of floating bamboo in the past do not establish how to dispose of it at a present-day festival.

03

From the court to wider participation

  1. Nara periodKikkōten arrives
  2. Heian courtOfferings and poetry
  3. Muromachi periodGames and contests
  4. Edo townsBamboo and paper wishes
A Kikkōten ceremony diagram in a manuscript of Unzushō, National Diet Library.

Nara: prayers for skill

The Chinese Kikkōden observance entered the Japanese court during the Nara period. It included prayers for skill in needlework.

Heian: poetry and offerings

Heian court observances combined Kikkōden with poetry. Kyoto’s account describes nobles writing poems on leaves of the kaji tree.

Muromachi: gatherings and amusements

An account of Muromachi festivities describes seven amusements, including poetry, ball games, go and incense.

Hiroshige’s Tanabata Festival in the City (1857): decorated bamboo rises above the rooftops.

Edo: bamboo above the streets

Tanabata belonged to the five seasonal festivals recognized as official ceremonial days. Townspeople decorated bamboo with tanzaku and coloured paper, including wishes for improvement in skills.

The Reizei family’s present-day altar, with offerings, instruments and five-coloured textiles.

Several traditions meet

Accounts connect the imported star and skill rites with Japanese weaving and purification traditions. The name Tanabata is associated with tanabata, a ritual loom; these connections explain the observance as a combination of traditions rather than a single documented founding event.

04

More than one reunion story

Detail of Tanabata no sōshi, an early Edo manuscript scroll held by Senshu University.

A celestial husband or wife

Senshu University’s early Edo scroll Tanabata no sōshi tells of a human daughter who marries a snake that becomes a handsome heavenly husband. A tale collected in Matsue in 1970 instead has a man hide a celestial woman’s robe, marry her, then follow her to heaven. A forbidden melon and a flood lead to separation. These are different narrative traditions.

05

Why the dates differ

  1. 1873Gregorian calendar adopted
  2. July 7Gregorian date
  3. Around August 7Month-late festivals
  4. Lunisolar 7/7Gregorian date varies

The calendar change of 1873

Japan’s adoption of the solar calendar separated July 7 from the seventh day of the seventh lunisolar month. Some communities kept a traditional-calendar date; others moved the observance one month later, to August 7.

The traditional date

The National Astronomical Observatory identifies the new moon closest to, and on or before, the day of Shosho, a solar term in late August. The day containing that new moon is day one; day seven is Traditional Tanabata. Its Gregorian date changes annually. A fixed August 7 celebration uses the one-month-later convention.

06

Sendai: a local path into the modern festival

  1. 1927Merchants revive decorations
  2. 1928August 6–8 and contests
  3. War yearsFestival declines
  4. 1946Decorations return
  5. TodayLarge street displays

1927–1946: revival, interruption and return

Sendai merchants revived large decorations in 1927. The next year brought August 6–8 dates and a decoration contest. Festivities nearly ceased in 1943–1944; bamboo decorations returned to the fire-damaged Ichibanchō area in 1946.

Large street decorations in Sendai; photograph undated.

A city celebration

After the war, Sendai’s celebration developed from a shopping-street event into a tourist festival. The organizing association describes stage events and decoration-making workshops among its activities.

07

Local practices and modern uses

Tanabata dolls in the Matsumoto City Museum collection: human-figure form.
Tanabata dolls in the Matsumoto City Museum collection: floating-doll form.

Matsumoto’s hanging dolls

Matsumoto preserves Tanabata dolls in several forms. The city relates clothing-display dolls to prayers for skill, and paper figures to purification before Bon. Historical collections and makers’ skills preserve this regional practice.

Visiting neighbours in Hakodate

On July 7, children in Hakodate sing as they visit participating homes and shops to receive treats. The custom is called rōsoku-morai, “candle collecting,” although sweets are familiar gifts today.

Agriculture and ancestors

Sendai’s older observance included agricultural wishes and preparations for Bon. In northern Okinawa’s Yanbaru region, Tanabata includes visiting and cleaning family or village graves. The star lovers are one part of a wider range of seasonal practices.

A postwar street festival

Hiratsuka’s Tanabata festival began in 1951, following a reconstruction festival in 1950. Merchants and other groups make large bamboo displays, showing how a seasonal observance also became part of postwar city rebuilding and commerce.

Wishes beyond the neighbourhood

At the 2008 G8 summit in Tōyako, leaders and their spouses hung written wishes on bamboo. That year’s Tanabata Light Down campaign used the date to draw attention to energy use. Overseas communities also celebrate: Japan’s consulate documents Tanabata in Promissão, Brazil.

What can you now explain?

Which real stars are associated with the two characters?

Orihime is associated with Vega in Lyra, and Hikoboshi with Altair in Aquila. Their annual reunion belongs to the legend; the stars do not move together once a year.

How do July 7, August 7, and Traditional Tanabata differ?

July 7 uses the Gregorian date. August 7 is the one-month-later convention. Traditional Tanabata follows a lunar-calendar calculation, so its Gregorian date changes from year to year.

What do Sendai’s seven ornaments express?

In Sendai’s explanations, strips represent learning and calligraphy; paper garments, sewing and protection; cranes, health and longevity; purses, prosperity; nets, harvests and fishing; baskets, cleanliness and thrift; and streamers, weaving skills.

How do regional customs extend beyond the lovers’ story?

Matsumoto displays dolls, Hakodate children visit participating neighbours for treats, and northern Okinawa includes grave cleaning before Bon. Large shopping-street displays in Sendai and Hiratsuka show another local form.

Sources and images

Object and historical images are identified beside the image and sourced below.

  1. 七夕について教えて
  2. 港区史・代表的な年中行事
  3. 七月・年中行事と宮廷文化のかたち
  4. 日本食文化テキストの試み
  5. 京都を彩る年中行事
  6. 節句（暦Wiki）
  7. 仙台七夕の歴史
  8. 七夕（暦Wiki）
  9. 七夕飾りについて
  10. 七夕人形コレクション
  11. 七夕のさうし
  12. 七夕の由来
  13. Hakodate’s Tanabata Traditions
  14. やんばる・祭りと行事
  15. 2026年7月号・そうめん
  16. なっとく童謡・唱歌：たなばたさま
  17. 七夕かざりと短冊
  18. 湘南ひらつか七夕まつり
  19. Tanabata event by G8 Leaders
  20. ライトダウンキャンペーン実施結果
  21. ノロエステ地方における日本祭り
  22. Hiroshige’s Tanabata Festival in the City (1857): decorated bamboo rises above the rooftops.
  23. A Kikkōten ceremony diagram in a manuscript of Unzushō, National Diet Library.