Mount Kusatsu-Shirane

草津白根山

Kusatsu, Gunma · Elevation 2,160 m

An active volcano at 2160 m in Kusatsu, Gunma, within Joshinetsu-Kogen National Park. It is a pyroclastic cone of Kusatsu-Shirane, with the crater lakes Yugama, Mizugama and Karegama near its summit; milky blue Yugama is its signature sight. The volcano is continuously monitored, and Honshirane erupted in 2018. Entry within 500 m of Yugama remains restricted under Article 63 of the Disaster Countermeasures Basic Act. Parts of the western trail and Lake Yumiike area outside that zone are scheduled for trial opening at limited hours from October 13 to November 8, 2026.

Mount Kusatsu-Shirane at a glance

Weather: The most settled day in the next 7 days is Wed, November 4: clear, gusts up to 8 m/s. Sat, Nov 7: strong wind (gusts up to 16 m/s).

Mount Kusatsu-Shirane weather (hourly, 14 days)

Sunrise today 06:11, sunset 16:48

		Tue, 11/3					Wed, 11/4										Thu, 11/5								Fri, 11/6								Sat, 11/7								Sun, 11/8								Mon, 11/9						Tue, 11/10				Wed, 11/11				Thu, 11/12				Fri, 11/13				Sat, 11/14				Sun, 11/15				Mon, 11/16				Tue, 11/17
Japan time		15	17	19	21	23	1	3	5	7	9	11	13	15	18	21	0	3	6	9	12	15	18	21	0	3	6	9	12	15	18	21	0	3	6	9	12	15	18	21	0	3	6	9	12	15	18	21	0	3	6	9	15	21	3	9	15	21	3	9	15	21	3	9	15	21	3	9	15	21	3	9	15	21	3	9	15	21	3	9	15	21	3	9	15

Temperature	°C	2°	-1°	-4°	-5°	-4°	-4°	-3°	-3°	-2°	4°	6°	7°	5°	1°	0°	1°	2°	3°	6°	10°	9°	5°	6°	5°	4°	3°	8°	10°	9°	3°	1°	0°	-1°	-3°	-1°	1°	-1°	-4°	-5°	-5°	-5°	-5°	-2°	1°	-1°	-4°	-4°	-3°	-2°	-2°	1°	2°	-2°	-2°	0°	0°	-2°	-4°	-5°	-4°	-4°	-5°	-1°	1°	-6°	-3°	-2°	-3°	-5°	-7°	1°	4°	-4°	-2°	3°	6°	1°	2°	6°	2°	-3°	-5°	0°	2°
Precipitation	mm															0.4	0.9	10	5	2.0	1.0						0.1									0.1	0.2													0.3	0.3			0.1	0.7	0.1	0.2	0.2	1.9	3.6	4.3	1.2						3.1	1.1									6	6		1.2	2.2
New snow	cm																																		<.1	<.1	0.1	<.1												0.3	0.2								1.4	3.6	4.2	1.0						3.0	1.1													0.3
Snow depth	cm	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	<1	3	6	6	6	6	4	4	4	6	6	5	5	5	4	4	4	3	2	1	<1	<1	0	0	0	0	0
Wind	m/s	2	2	1	1	1	0	1	1	0	1	2	2	2	2	2	2	1	1	0	0	0	1	0	1	1	1	2	4	4	2	2	3	3	3	3	5	4	3	2	2	3	3	3	3	3	1	1	1	1	1	1	1	1	0	2	1	0	5	6	6	2	2	1	0	0	2	2	4	2	2	0	0	0	1	0	1	0	2	2	5	4	3	1	1
Wind gusts	m/s	9	8	6	5	5	4	4	4	4	4	6	7	8	7	8	8	7	7	6	6	6	4	4	5	6	7	8	12	14	12	10	11	12	11	13	16	16	13	11	10	11	12	11	10	11	9	6	6	6	7	7	7	5	3	6	9	7	18	27	25	18	9	7	6	5	7	10	14	13	10	7	4	4	4	5	8	7	11	10	17	18	13	8	6
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