Mt. Kurofu

黒斑山

Tsumagoi, Gunma · Elevation 2,404 m

Mt. Kurofu (2,404 m) is the highest summit of Mt. Asama's first outer rim, straddling Tsumagoi Village in Gunma and Komoro City in Nagano within Jōshin'etsu-Kōgen National Park. With Mt. Asama itself often under entry restriction as an active volcano, Mt. Kurofu serves as the headline outer-rim viewpoint—the cliff-edge "Tōmi-no-Atama" gives a full-frontal view of the main peak, especially striking in winter when the snow-streaked cone is nicknamed the "gateau chocolat." Reached in just three to four hours from the 2,000 m Kurumasaka Pass trailhead, it is a favourite day hike and snowshoe target, and its early-summer alpine flowers (himeshajin, etc.) earned a place on Sumie Tanaka's "100 Flower Mountains."

Mt. Kurofu at a glance

Weather: The most settled day in the next 7 days is Wed, November 4: clear, gusts up to 7 m/s. Sat, Nov 7: strong wind (gusts up to 16 m/s).
Route: The shortest is Asama First Outer Rim Loop from Tengu Onsen via the J-Band, Kurofuyama and Kusasuberi: about 8 h 13 min, 13.6 km, about 1,120 m of climbing.

Mt. Kurofu weather (hourly, 14 days)

Sunrise today 06:10, sunset 16:49

		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		21	23	1	3	5	7	9	11	13	15	17	19	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	12	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	21

Temperature	°C	-5°	-5°	-5°	-5°	-5°	-3°	1°	4°	5°	4°	0°	-1°	-1°	0°	0°	1°	3°	8°	8°	4°	4°	3°	2°	2°	6°	8°	7°	1°	-1°	-2°	-4°	-5°	-1°	0°	-2°	-6°	-7°	-7°	-8°	-8°	-3°	0°	-1°	-5°	-6°	-5°	-4°	-3°	0°	5°	2°	-3°	-4°	-2°	0°	-4°	-7°	-6°	-5°	-7°	-8°	-2°	1°	-7°	-4°	-3°	-4°	-9°	-8°	0°	4°	-4°	-3°	2°	5°	0°	2°	5°	2°	-5°	-8°	-2°	1°	-5°
Precipitation	mm													0.2	3.8	8	3.8	1.0				0.7		0.4	0.7																												0.7	1.2	0.3			1.9	1.8	1.6							0.1	0.1									7	6		0.3	0.1
New snow	cm																																		<.1																			<.1				1.8	1.8	1.5	<.1						<.1	<.1
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	<1	2	3	2	2	2	1	1	1	1	<1	<1	<1	<1	<1	<1	<1	<1	<1	0	0	0	0	0	0	0	0	0
Wind	m/s	1	0	0	0	0	0	1	2	2	2	2	3	2	2	1	1	1	1	1	1	1	1	2	1	3	4	3	2	3	3	2	3	4	5	4	2	2	2	2	2	2	2	2	0	0	1	0	0	0	2	1	1	1	1	2	1	4	5	4	2	1	1	1	0	1	3	3	2	1	1	1	0	0	2	4	1	2	2	5	3	2	1	1	0
Wind gusts	m/s	4	4	3	3	3	3	5	7	7	7	7	8	9	9	9	7	5	7	7	6	6	9	11	10	12	15	13	9	10	11	11	12	14	16	16	14	11	10	11	11	10	10	8	6	5	7	7	7	7	9	9	5	3	5	8	8	15	26	23	18	10	7	8	6	8	11	14	13	9	7	6	5	5	7	13	12	13	12	17	18	14	8	6	5
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