Monnai Hut

門内小屋

1,869 m · Oguni, Yamagata · 1.9 km from the summit of Jigamihoppō

An unmanned refuge on the Iide ridgeline just below Mount Monnai, at about 1,868 m. The usual approach from Okutainai via the Ashinomatsu Ridge takes roughly 7 hours 25 minutes to Mount Monnai. It is a 20-person base for traverses of northern Iide, with a nearby water source and a separate bio-toilet.

unstaffed · sleeps 20

Website: www.city.tainai.niigata.jp ／ Phone 0254-43-6111

Prices (2026)

Emergency shelter cleaning contribution: ¥2,500
Campsite cleaning contribution: ¥1,500

Monnai Hut weather (hourly, 14 days)

Sunrise today 06:08, sunset 16:42

		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°	-3°	-3°	-2°	-2°	-2°	-2°	0°	4°	6°	7°	6°	3°	3°	3°	3°	5°	6°	7°	9°	7°	7°	6°	6°	6°	6°	6°	5°	3°	1°	-1°	-2°	-3°	-4°	-3°	-4°	-5°	-5°	-5°	-5°	-5°	-3°	-3°	-3°	-4°	-4°	-4°	-4°	-5°	-2°	-2°	-6°	-8°	0°	2°	-2°	-4°	-3°	-2°	-3°	-4°	-1°	-1°	-3°	-2°	-2°	-3°	-4°	-4°	-1°	2°	-2°	1°	5°	5°	2°	5°	5°	1°	-4°	-5°	-3°	-1°
Precipitation	mm																	2.6	13	2.7	3.4	0.2		0.2	1.8		2.8	3.9	4.4	1.9	4.6	3.5	4.8	4.3	4.7	3.8	2.0	1.6	1.0	0.6	0.6	0.3	0.3	1.0	2.6	2.4	1.5	0.3	0.2	0.8	1.5							2.4	10	4.9	3.8	4.5	2.3		1.4	0.3	3.4	5	1.0	1.0	0.2							4.2	8	4.8	10	6	1.0	0.3
New snow	cm																																0.3	1.9	3.4	3.3	1.8	1.6	0.9	0.6	0.6	0.2	0.3	0.9	2.5	2.1	1.1	0.1	0.1	0.8	1.4	<.1						0.4	4.9	4.9	1.5	1.8	1.3				0.9	0.3	0.9	1.0	0.1											1.4	0.9	0.2
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	<1	3	4	5	6	6	6	7	7	7	8	9	9	10	9	9	9	10	10	8	8	7	7	6	5	8	11	9	9	10	9	7	7	7	6	6	7	7	7	5	5	5	4	3	2	2	1	<1	<1	2	2	1
Wind	m/s	4	1	1	1	1	1	1	1	1	1	1	0	2	3	4	4	3	2	1	2	2	1	2	2	2	3	4	5	4	4	4	4	4	4	5	6	5	5	4	4	4	4	5	4	3	2	1	1	1	0	0	1	1	0	1	3	2	2	4	4	3	2	2	2	0	2	4	5	3	2	1	1	0	2	1	1	2	1	2	6	5	3	2	1
Wind gusts	m/s	16	13	8	8	7	7	7	7	7	6	6	5	6	12	14	16	15	14	9	9	9	8	8	8	10	12	15	20	19	17	18	16	16	18	20	24	25	21	19	18	18	17	18	18	15	13	10	9	8	7	5	8	6	6	6	13	16	14	16	19	19	12	9	10	9	11	17	18	18	13	9	7	6	8	8	7	11	12	11	20	21	18	12	7
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