Lake Suwa Fireworks Festival
諏訪湖祭湖上花火大会
Lake Suwa Fireworks Festival is a fireworks festival held in Nagano. Date: August 15 (Obon-tied — 8/15 is the closing date of Obon week, and lake fireworks are a fixed annual tradition). Total shells: about 40000. Attendance: 約500,000人（2010年 基準値 — Wikipedia JA）. No. 78回
Event essentials
Headline stats
- Total Shells
- 40000
- Duration
- 120 min
- Nights
- 1 night(s)
- Attendance
- 約500,000人（2010年 基準値 — Wikipedia JA）
- Largest Shell
- 10号玉 from Hatsushima artificial island + 20号・30号 (water starmine, revived 2006)
- Founding Year
- 1949
Signature Sequences
- 01'Part 1: 10号 rapid-fire competition (10号玉5発を次々打ち上げ) — competitive 10 firms × 2 categories'
- 02'Part 1: Starmine competition (規定量による美しさを競う)'
- 03'Part 2: Kiss of Fire (水上大スターマイン) — half-moon chrysanthemum on lake surface, approaches Hatsushima, finishes with 10号 rapid-fire from island'
- 04'Part 2: 大ナイアガラ瀑布 — 2km water starmine, Japan''s longest (湖上に出現する日本最長)'
- 05Largest fireworks by shell count in Japan (~40,000) — 打ち上げ数では国内最大
- 06Reflection on lake surface — half-moon chrysanthemum visible in water mirror
- 07Japan's longest water-starmine Niagara Falls (2km on lake surface)
- 08Two-part competitive + spectacle structure unique to Suwa
- 0910 starmine launch platforms on lake + artificial island Hatsushima
- 10'Trademarked "諏訪湖の花火" (2026) — first regional fireworks to trademark'
Venue & Access
- Time Window
- 19:00–21:00 JST (typical two-hour show; 2026 official "8/15 19:00-")
- Venue
- Lake Suwa (諏訪湖) — offshore launch platforms including artificial island Hatsushima (初島) and 10 starmine firing bases
- Address
- 長野県諏訪市 湖畔公園前 諏訪湖上 (Lake Suwa off Lakeside Park, Suwa, Nagano) 36.047818°N, 138.111811°E
- Venue Size
- Not confirmed in the sources checked (2026-10-21 pass)
- Venue Floor Type
- 水面発射 — 湖上（Lake launch; no ground surface）
- Gates Open
- 開門時刻は公式が「決定次第、ホームページ上でご案内します」と公示（2026年）
- Paid-Seat Holder Entry
- 開門時刻は公式の大会概要ページで後日案内（2026年は未確定）
- Spectator Capacity
- Not confirmed in the sources checked (2026-10-21 pass)
- Production Company
- 第1部競技花火 10社（長野県内5社・県外5社）＋ 第2部大スターマインを複数社が担当（社名は非公表）
- Sponsor
- Suwa City Tourism Association (諏訪市観光協会),Suwa City (諏訪市),Suwa Chamber of Commerce (諏訪商工会議所),Suwa Lake Onsen Ryokan Association (諏訪湖温泉旅館協同組合),'2026 onwards: Trademarked "諏訪湖の花火" jointly held by the 4 above organizations (joint ownership)'
Access
Venue map
View on Google MapsFrom major cities
- From Tokyo
- 特急あずさ (Azusa limited express) Shinjuku → Kami-Suwa ~2 hours; or 特急あずさ + 諏訪湖花火大会号 (late-night special return train); Tokyo/Chiba → Azusa direct service
- From Osaka
- Not confirmed in the sources checked (2026-10-21 pass)
- From Sendai
- Not confirmed in the sources checked (2026-10-21 pass)
- Nearest Station
- JR Chuo Main Line Kami-Suwa Station (上諏訪駅) — special express 諏訪湖花火大会号 (Azusa/Alps) from Tokyo/Shinjuku/Chiba
- Nearest Shinkansen
- No direct Shinkansen to Suwa; nearest = 長野駅 (Hokuriku Shinkansen) + しなの鉄道 transfer ~1h, or Tokyo via Azusa limited express ~2h
- Local Transit
- Walk from Kami-Suwa Station ~10-15 min to lakefront; local bus supplementary
- Parking
- Multiple city/municipal temporary parking lots (小中学校校庭 etc.) — but akippa pre-reservation recommended since 2023
- Parking Reservation
- yes — akippa pre-reservation system since 2023; traffic improved post-implementation
- Lodging Strategy
- Suwa Onsen (上諏訪温泉) hot-spring ryokan are the standard — book 3-6 months ahead for Aug 15; alternative bases: 松本 (Matsumoto, 30 min by JR), 岡谷 (Okaya, 10 min by JR)
- English Access
- yes — Japanese online platforms; 国際向け放映 (Japan News English internet broadcast) since 2012
- Cash Required
- yes (food stalls; some ticket booths)
- Best Arrival
- 16:00 for paid seats; 17:00-18:00 for free viewing; 14:00 for premium free spots (立石公園 etc.)
- Peak Crowd
- Part 1 finale + Part 2 (Kiss of Fire at ~20:30, Niagara at ~21:00)
Tickets
- Seat Type
- ブロック指定席 (block-designated seats) — lottery sale (市民割当50%)
- 商連観覧席 (Chamber of Commerce seats)
- 旅館組合団体席 (Ryokan Association group seats)
- 御招待入場券 (invitation tickets)
- 湖畔エリア入場券 / 間欠泉北エリア入場券 (Lakefront area tickets)
- フードコートエリア入場券 (food court area tickets)
- Price Range
- 1000-5000 (typical for regional Nagano festivals; specific tier pricing varies)
- Seat Count
- Several thousand (estimated; detailed breakdown varies by year) seats
- Sellout History
- Cゲート観覧席は先着完売（2026年 公式チケット情報ページ掲載）
- Reservation
- Lottery for blocks + first-come for sponsor/organization tickets
- Day-Of Ticket
- yes for some areas — tickets/リストバンド sold at venue
Weather Policy
- Rain
- cancelled-if-severe-weather
- Decision Time
- Day-of morning announcement (typical Nagano mountain-region pattern)
- Postponement
- No postponement; severe weather = cancel (2013 mid-event cancellation was precedent)
- Wind Threshold
- Typical threshold ~10 m/s (consistent with regional festivals)
- Typical Risks
- Mid-August Nagano mountain thunderstorms (afternoon-evening); residual typhoon approach (rare mid-Aug but possible); lake-effect humidity
- Weather Cancellation History
- 2013: Mid-event cancellation (19:30) due to lightning + heavy rain,1959: Postponed twice (Sep, then Oct) due to typhoon,'2026 8/15 forecast: くもり、夜のはじめ頃まで雷を伴う激しい雨 (Nagano Meteorological Office 8/15 17:00) — heat index WBGT 22.5 (注意)'
Sources and verification
Related festivals
Sister Festivals
- Tsuchiura All-Japan National Fireworks CompetitionJapan Three Great Night Fireworks co-member
- Omagari Fireworks FestivalJapan Three Great competitive peer
- 全国新作花火チャレンジカップpaired with the same Suwa festival calendar