Published October 20, 2026 at 7:45 PM JST

Once a year, Shinto tradition says gods from across Japan travel to Izumo in Shimane, where welcoming bonfires, hushed rites and the famous nineteen lodging halls mark a month of good bonds.

Quick answer: Kamiarisai is the annual gathering festival at Izumo Taisha in Shimane Prefecture, held in the tenth month of the old lunar calendar, which usually falls between November and early December. Tradition says the gods of Japan gather in Izumo to talk about the coming year's connections between people, so Izumo calls the month Kamiarizuki, the month with gods. Organizers set the exact days each year.

What Kamiarisai Is

Kamiarisai is a series of rituals at Izumo Taisha, one of Japan's oldest and most revered shrines, held in the tenth month of the old lunar calendar. According to Shinto tradition, the many gods of Japan, often described as the eight million deities, travel to Izumo in this month to hold a divine council. Most of Japan calls the month Kannazuki, the month without gods, because the gods are believed to be away. In Izumo it is Kamiarizuki, the month with gods.

The council is described in tourism sources as a gathering to decide matters of en, a Japanese word for bonds or connections. This includes romantic matches, but a multilingual guide from Japan's Ministry of Land, Infrastructure, Transport and Tourism stresses that the idea is broader, covering the relationships, work and opportunities that shape people's lives in the year ahead. That is why Izumo Taisha is widely known as a shrine for good connections.

The shrine's official site describes Izumo Taisha as famous as a god of connections and good fortune, and its main deity is Okuninushi, widely known as Daikoku-sama. The festival is therefore both a religious observance and a time when visitors come to pray for good relationships of all kinds.

The festival follows the lunar calendar, so the dates in the modern calendar change every year. A Japanese guide gives November 29 as the welcoming ceremony for 2025, and a 2026 English guide lists November 18 for the welcoming rite, but readers should confirm the current dates with the shrine, since organizers announce the schedule each year.

History and Mythological Roots

The festival is tied to one of Japan's oldest stories, the myth of the transfer of the land. The Ministry of Land, Infrastructure, Transport and Tourism's multilingual guide explains that Okuninushi brought agriculture and medicine to the land, and that the sun goddess Amaterasu sent messengers to ask him to hand over rule to her grandson. Okuninushi agreed and took charge of the unseen world, including human spirits and the afterlife. This is said to be why he became the god of en-musubi, the tying of bonds.

Inasa Beach plays a role in the story too. The same guide says it is where the last of Amaterasu's messengers arrived to negotiate with Okuninushi. Today, it is the place where the gods are believed to land when they arrive from the sea for the festival.

The festival is also woven into local life. Kamiarisai is sometimes called Oimi-sai, a name that refers to a time of quiet restraint, and guidebooks explain that during the festival song, dance and music are restrained, while in the past building work near the shrine was paused. This history gives the festival a hushed and respectful feel compared with the lively summer festivals elsewhere in Japan.

Izumo Taisha is not the only shrine to hold such rites. A travel guide notes that nine shrines in the Izumo region hold Kamiari rites, including Sata Shrine, Mankusen Shrine and Hinomisaki Shrine, each with its own schedule.

The Welcome at Inasa Beach

The first major event is Kamimukae-sai, the ritual of welcoming the gods. A Japanese guide says it is held on the evening of the tenth day of the lunar tenth month, and in recent years it has started at seven in the evening on Inasa Beach, about one kilometer west of the main shrine.

According to the guides, a sacred fire is lit on the beach and priests set up a temporary altar called a himorogi. The gods are believed to arrive from the sea, guided by Ryujasama, a dragon-serpent figure. The ritual on the beach lasts around twenty to thirty minutes, after which priests lead a procession toward the shrine along a route known as the Kamimukae-no-michi, a road of about one kilometer.

One guide explains that Ryujasama is linked to the yellow-bellied sea snake that washes ashore along the Izumo coast in late autumn, and that such snakes have long been dedicated to the shrine. This gives the ritual a deeply local flavor and ties the festival to the natural rhythms of the sea.

Visitors are welcome to watch from outside the ropes, but the English guide notes there is no spectator seating, flash photography is discouraged and visitors should not walk on the straw mats laid on the sand. Many people walk back to the shrine with the procession, creating a quiet, lantern-lit walk through the night.

Kamiarisai Itself: Seven Days of Rites

The seven days of Kamiarisai run from the eleventh to the seventeenth day of the lunar tenth month. During this time, tradition says the gods hold their meeting. The official shrine events are conducted by priests, and tourism sources note that the rites in the main hall are not performed for an audience, although ordinary worship continues at the shrine.

The gods are believed to stay in the Juku-sha, the nineteen lodging halls on the east and west sides of the main hall. The MLIT guide describes each as a long building with nineteen doors, and notes that the current buildings date from the early nineteenth century. The number nineteen is explained as ancient numerology: one begins all numbers and nine ends them, so nineteen doors symbolize a limitless space.

For most of the year the doors stay closed, but during the festival they are opened, and visitors line up to pray there. A Japanese guide says the Juku-sha act as the gods' lodging and that rituals are also held there.

Another event is the Enmusubi Taisai, a ceremony of prayers for good connections held in the main hall. According to a Japanese guide, it is held on days that fall within the festival and requires advance application for attendance. Since arrangements, fees and application methods change, the shrine's official announcement is the right source for the latest details.

The Farewell Rite and Closing Days

The festival closes with Kamisari-de-sai, also known as Karasade-sai, the farewell rite. Japanese guides explain that it is held in the afternoon of the seventeenth day of the lunar tenth month, when the sacred objects housing the gods' spirits are moved from the Juku-sha to the worship hall. Priests recite prayers, and a priest then calls out to announce that the gods are departing.

The JNTO guide describes a priest's shout as the signal for the gods to leave, and the MLIT guide describes a priest knocking three times on the door of the main hall. The gods then disperse to other shrines in Izumo, and on the twenty-sixth day a second farewell rite is held to send them home to their own shrines across Japan, according to the MLIT guide.

The tone is quiet and moving. Rather than a loud celebration, the farewell feels like a gentle goodbye to guests who have stayed for a week. After the rite, the doors of the Juku-sha are closed until preparations begin for the next year.

How to Visit and Show Respect

Quiet is the key to enjoying Kamiarisai. Keep your voice low, follow staff directions and avoid flash photography at the ceremonies. The English guide recommends arriving at Inasa Beach well before the welcome ceremony, around two hours earlier, to get a spot near the rope, and suggests warm layers because the sea wind can make the evening feel colder than the forecast suggests.

At the shrine, the Japanese guide explains that the formal worship style at Izumo Taisha is two bows, four claps and one bow, which differs from the usual two claps at most shrines. Visitors can follow signs and watch what others do. A common souvenir custom described in the guides is the exchange of sand: visitors take a little sand from Inasa Beach, leave it at Soga Shrine within the grounds and take home an equal amount from the shrine, to be kept as a lucky charm.

Plan transport ahead. The English guide cautions that late evening trains from Izumo are limited, advises against driving on the night of the welcome ceremony and notes that traffic arrangements are announced late. Staying near Izumo on the evening of the welcome ceremony is often easier. Because details vary, check the shrine and local transport operators for current guidance.

Weather in November and December can be chilly and wet along the Sea of Japan coast. Bring a warm coat, comfortable shoes and rain protection, and allow extra time for walking between the beach and the shrine.

Food, Area Highlights and Recognition

Izumo is famous for its local cuisine. The English guide mentions zenzai, a sweet red bean dish, and suggests it may be named after the jinzai mochi served during the festival. Whether or not that origin is exact, a bowl of zenzai is a cozy way to warm up after an evening on the beach. Izumo is also known for its soba noodles, which are a regional specialty.

Beyond the festival, the Izumo Taisha grounds are worth exploring. The giant shimenawa rope at the Kaguraden hall is a famous sight, and the walk from the beach along the Kamimukae-no-michi offers a peaceful view of the town. A daytime walk along that road is a good way to understand the geography of the festival.

Regarding recognition, the sources consulted describe the festival as a long-standing Shinto observance of Izumo Taisha, but no UNESCO or national designation for the festival itself was found. Izumo Taisha is nevertheless one of the country's most important shrines and draws visitors from around the world throughout the year.

Always check the shrine's official site for the current schedule and any special arrangements, since the exact days, times and viewing rules for each ritual are announced annually.

Frequently Asked Questions

Why is the festival held in the tenth lunar month?

In Izumo, the tenth lunar month is called Kamiarizuki, the month with gods, because tradition says the gods of Japan gather there. In most other regions it is called Kannazuki, the month without gods. Because the lunar calendar differs from the modern calendar, the festival usually falls between about late November and early December.

Can visitors watch the rituals?

Visitors can watch the welcome ritual from outside the ropes at Inasa Beach, but there is no seating and flash photography is discouraged. The main hall rituals are not performed for an audience, though ordinary worship continues, and some ceremonies such as the Enmusubi Taisai require advance application.

What is the Juku-sha?

The Juku-sha are two long lodging halls, one on each side of the main hall, each with nineteen doors. They are said to house the gods during their stay, and their doors are opened for the festival. The MLIT guide says the current buildings date from the early nineteenth century.

Further reading: the Watabi guide to Izumo's Kamiarizuki month, the MLIT multilingual guide to the Kamiari Festival at Izumo Oyashiro and the official Izumo Taisha website.

Keep exploring: Tottori Shan Shan Festival: Thousands of Bell-Ringing Umbrellas; Hiroshima Flower Festival: Three Golden Week Days of Blooms and Music; Saidaiji Eyo: A Winter Night of Lanterns, Drums and Sacred Sticks; Aoi Matsuri: Kyoto's Elegant Hollyhock Festival.