Onogawa Onsen
Open by month
Open in January. No seasonal closure recorded.
Open in February. No seasonal closure recorded.
Open in March. No seasonal closure recorded.
Open in April. No seasonal closure recorded.
Open in May. No seasonal closure recorded.
Open in June — at its best. Firefly festival, mid-June to mid-July (three species at once).
Open in July — at its best. Firefly festival, mid-June to mid-July (three species at once).
Open in August. No seasonal closure recorded.
Open in September. No seasonal closure recorded.
Open in October. No seasonal closure recorded.
Open in November. No seasonal closure recorded.
Open in December. No seasonal closure recorded.
Checked against the official site on 2026-10-15.
A small spa village outside Yonezawa where the poet Ono no Komachi is said to have healed. The water flows straight from the source, can also be drunk, and fills two old public bathhouses.
Nearby
- Uesugi Family Mausoleum ≈ 20 min by car
- Uesugi Shrine (Matsugasaki Park) ≈ 20 min by car
- Shirabu Onsen ≈ 35 min by car
- Akayu Onsen ≈ 50 min by car
- Kumano Taisha (Nanyo) ≈ 55 min by car
Travel times are rough estimates by car.
- Best time
- June, July — Firefly festival, mid-June to mid-July (three species at once)
- Getting there
- About 25 min by bus from JR Yonezawa Station
- Fee
- Public baths: Amayu ¥200, Takinoyu ¥250
- Good to know
- Amayu 7:00–21:00 (open daily); Takinoyu 6:00–20:30 (irregular closures). Sunday morning market from the 3rd week of June to the 1st week of November
- Time needed
- 1 h 30 min
Checked against the official Japanese website on 2026-10-15. Report outdated info