A summer in Oe Town, with lanterns on the Mogami River and fireworks lighting up the night sky and water
Suigo Oe Summer Festival: Lantern Floating and Fireworks
The 2026 edition of Suigo Oe Summer Festival: Lantern Floating and Fireworks has ended.
Festival information
EVENT INFORMATION- Dates
- 2026/08/15Ended
- Season / frequency
- Mid-August / Every year
- Location
- Mogami River banks (Aterazawa), Tateyama Park and Senbonbara
- Area
- Yamagata Prefecture・Oe Town(From Tokyo: approx. 2 h 30 min–3 h · bullet train)Prefecture-level estimate to a main station or airport, not the venue. Airport access, check-in and onward travel are extra; remote areas and islands can take much longer.
- Features
- Wishes behind the festival
- Participation / viewing
- Spectators welcome
- Participation fee
- Admission to the venue is free. Paid viewing seats are planned to cost 4,000 yen per chair.
- Last updated
- 2026/10/19
A summer event in Oe Town where lanterns are floated on the Mogami River and fireworks are launched into the night sky. It has a long history and originated as a lantern-floating ceremony to honor those lost to water-related accidents.
About Suigo Oe Summer Festival: Lantern Floating and Fireworks
The Suigo Oe Summer Festival: Lantern Floating and Fireworks is a summer event held on the banks of the Mogami River in Oe Town, Yamagata Prefecture.
The event combines fireworks with a lantern-floating ceremony, letting you enjoy lights on the river and fireworks in the night sky.
The fireworks festival has been held since 1922 and is considered the first fireworks festival held in Yamagata Prefecture.
It is held around mid-August every year.
Source: 水郷大江夏まつり灯ろう流し花火大会 - Wikipedia
Festival highlights
Highlights include the dreamlike sight of lanterns floating on the Mogami River and fireworks launched from several locations.
In 2026, the fireworks were set to begin with a countdown following “Shiragiku,” memorial fireworks offered in prayer for those lost to water-related accidents.
From the paid viewing seats on the Mogami River banks, you can enjoy powerful fireworks close to the launch site.
Source: 【2026年版】やまがたの心躍る花火大会｜特集｜やまがたへの旅 - 山形県の公式観光・旅行情報サイト
A summer in Oe Town, with lanterns on the Mogami River and fireworks lighting up the night sky and water
What to expect
On the day, lanterns will be floated and fireworks set off on the banks of the Mogami River.
In 2026, the memorial fireworks “Shiragiku” were scheduled for 7 p.m., followed by the start of the fireworks display at 7:15 p.m.
Food stalls line the area around the venue, where you can enjoy food and drinks before and after the fireworks.
This event brings together the glow of lanterns, riverside scenery, and the sound and light of fireworks.
How to take part
Visitors can watch the event.
参加費：会場入場無料。
Paid viewing seats are planned to cost 4,000 yen per chair.
Location and access
- Venue and address
Mogami River banks (Aterazawa), Tateyama Park and Senbonbara.
Address: Aterazawa, Oe-machi, Nishimurayama-gun, Yamagata Prefecture.
- Train and bus
It is a 5–10-minute walk from JR Aterazawa Station.
Shuttle buses run from a parking area farther away to the venue.
- By car
It is a 10-minute drive via National Route 458 from Sagae IC on the Yamagata Expressway.
- Parking
Parking for 1500 vehicles is available; it is listed as free, with some paid spaces.
Source: 水郷大江夏まつり灯ろう流し花火大会（山形県／大江町）｜全国のおすすめ花火大会2026｜るるぶ&more.
Address Aterazawa, Oe-machi, Nishimurayama-gun, Yamagata Prefecture
Dates and season
2026 event information (the listed dates have passed)
In 2026, it was held on August 15 (Saturday).
The event was scheduled to run from 7:15 p.m. to 8:50 p.m., with the memorial fireworks “Shiragiku” at 7 p.m. and the fireworks display starting at 7:15 p.m.
The event goes ahead in light rain and is canceled in severe weather, according to the event information.
It is usually held in mid-August.
Accommodation and hotels PR
Showing nearby accommodation.
Prices and availability are current at the time of retrieval. For multi-night stays, only the first night’s price is shown. Confirm the final price and directions to the venue with the booking provider. Select your dates again when using the area search link. Search area: within 3 km of Central Yamagata Prefecture / Oe Town (the search is not centered on the festival venue)
Tips for your visit
The 2026 event information states that the event will be canceled in severe weather, so be sure to watch for changing conditions.
Many food stalls are scheduled to open near the venue, and some parking is listed as paid.
If you plan to use paid viewing seats, it is a good idea to check the seat options and availability in advance.
As the venue is by the river, wear comfortable walking clothes and allow plenty of time for your visit.
Source: 令和8年度 第104回 水郷大江夏まつり灯ろう流し花火大会（西村山郡大江町）の打ち上げ数・日程など - 花火大会2026 - ウォーカープラス
Nearby attractions
Nearby spots connected with Oe Town’s river and river-transport history include the Mogami River banks (cherry blossoms), Mogami River transport and the Mogami River boatmen’s song, and Haramachi Street.
Tateyama Park (Nihon-ichi Park / Aterazawa Tateyama Castle Historical Park) and the nationally designated historic site of Aterazawa Tateyama Castle Ruins are also featured.
A place near the festival venue where you can explore the history of the Mogami River and Aterazawa.
Source: 水郷大江夏まつり灯ろう流し花火大会 ｜イベント（大江町・村山地方）｜やまがたへの旅 - 山形県の公式観光・旅行情報サイト
Origins and History of Suigo Oe Summer Festival: Lantern Floating and Fireworks
The fireworks festival has been held since 1922 and is considered the first fireworks festival in Yamagata Prefecture.
The lantern-floating ceremony began in 1919, when local people floated lanterns during the season to comfort the spirits of relatives who had died in water-related accidents.
Aterazawa was once a transfer point for river transport on the Mogami River, where water-related accidents also occurred during river transport, swimming, and fishing.
Official information
The official website is the Oe Town Tourism Association’s information page for the “Suigo Oe Summer Festival: Lantern Floating and Fireworks.”
The 2026 event information covers the date, venue, event hours, seating, parking, and more.
The contact is the Suigo Oe Summer Festival Executive Office.
Suigo Oe Summer Festival: Lantern Floating and Fireworks at a Glance
The Suigo Oe Summer Festival: Lantern Floating and Fireworks is a summer event in Oe Town where you can enjoy lanterns floating on the Mogami River along with fireworks.
It originated as a lantern-floating ceremony to comfort those lost to water-related accidents, and the fireworks festival has a history dating back to 1922.
In 2026, memorial fireworks and a fireworks display were scheduled for August 15 on the banks of the Mogami River.
Japanese Festivals.jp Editorial Team
Celebrating local culture and helping you discover a side of Japan you never knew.
Article updated: 2026/10/19
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