No. 54 · Gunma

Minakami Onsen

Minakami Onsen ranked No. 54 in the published 2025 Japan hot-spring destination list. Check bathing options, access and stay details before planning your visit.

Minakami Onsen hot-spring destination
Minakami Onsen, Gunma

Spring information

Water and bathing details for Minakami Onsen

Facility-level figures; blank town-wide averages are not inferred.

Named facility records for Minakami Onsen. Figures marked “Not published” are not treated as town-wide averages.

FacilitySpringSource dataSupplyBath type
Takaragawa Sanso (Day Use)Simple spring Source: Four springs on the Takaragawa Onsen groundsSource temperature: 40–68°C across the four sources on the grounds; not one bath's temperature
pH: Not published
The inn describes the water throughout the property as free-flowing. In the large outdoor baths, Maka-no-Yu and Hannya-no-Yu use water without added water or heating. Maya-no-Yu and Kodakara-no-Yu may have water added in summer to control high temperatures; they are not heated, recirculated or chemically treated according to the current facility information. The indoor bath's individual conditions are not published in full.Day-use bath. Takaragawa Sanso is for making the riverside outdoor baths the main event, not for a quick stop between trains. It offers a long day-use stay, but the mountain location and lack of day-visitor shuttle make a car the easier option.
Oku-daira Onsen YushinkanAlkaline simple spring Source: The spring used at Oku-daira Onsen; no individual source name is published in current official textSource temperature: Not published
pH: Not published
The facility describes its overall supply as 100% spring water using circulation and heating, with some free-flowing pools. A separate source-flowing bath is described as 100% free-flowing, without heating or circulation, at about 30°C. Those conditions do not apply to every pool.Day-use bath. Yushinkan is a good-value long-stay bath near Takumi-no-Sato if you want several pools, sauna, places to rest and food on site. The cooler source-flowing bath is a separate option, not the temperature of the whole facility.
Tsukiyono Onsen Mitsumine-no-YuNot published in current official text Source: The spring used by Mitsumine-no-Yu; no individual source name is published in current official textSource temperature: Not published
pH: Not published
The Minakami tourism association describes all the baths as free-flowing. The town's reopening notice says chlorine-based agents have been used for sanitation since the facility reopened in June 2025. Free-flowing should not be read as untreated or unsanitized.Day-use bath. Mitsumine-no-Yu is a simple, low-cost option for drivers who want a short soak in a small municipal bath. Go for the price and free-flowing water, not for extensive facilities or many washing stations.

Destination comparison

What this onsen town offers

Popularity

81/100

History

73/100

Spring character

77/100

Town culture

74/100

Seasonal scenery

75/100

Access

72/100

Local history

How the town developed

Four seasons

Seasonal conditions and travel rhythm

SpringMar–May
Daytime range: 2–16°C
SummerJun–Aug
Daytime range: 20–30°C
AutumnSep–Nov
Daytime range: 10–23°C
WinterDec–Feb
Daytime range: -3–7°C

Plan your stay

Minakami Onsen: day trip or overnight?

Compare travel time, bath access and the time you want to spend in town.

Nearby destinations

Other places in the same prefecture in the published ranking.

Related guides

Guides to Minakami Onsen

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Official sources

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