Hida Mountains · Nagano · JapanSummit weather, forecast and climate

Mount Ontake

Complex volcano · last major eruption 20143,067 mUltra-prominent peakSnow likely Jan–May · Oct–Dec

Elevation3,067 mabove sea level

Prominence1,712 mindependent height

Isolation46 kmto a higher summit

Summit, Jul11°average high

35.89° N, 137.48° EElevation 3,067 mUTC+9 · Japan Standard Time

From the valley to the top

Summit3,067 m
Mid-mountain2,110 m
Valley · Ōtaki1,150 m

Freezing level in October: 2,900 m

iThe mountain

Mount Ontake in brief

Mount Ontake rises to 3,067 m in the Hida Mountains, Nagano, Japan. Its topographic prominence — the height it stands above the lowest contour enclosing a higher summit — is 1,712 m, which makes it an ultra-prominent peak.

At the summit, August is the mildest month with average highs of 13°, while nights fall below freezing in 9 months of the year. Daytime highs climb above zero from May to October.

The nearest town in the atlas is Ōtaki, 12 km to the SE at 1,150 m.

Facts

Elevation: 3,067 m · 10,062 ft
Prominence: 1,712 m
Range: Hida Mountains
Region: Nagano
Country: Japan
Coordinates: 35.8931, 137.4806
Nearest airport: Shinshu-Matsumoto Airport (MMJ) · 50 km

iiForecast

Weather at three heights

Temperatures are adjusted to each height; summits are usually colder and windier than the valley forecast suggests.

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iiiSummit climate

The top of Mount Ontake by month

Summit temperatures and precipitation

Climate normals for the summit area (~1 km grid), station-adjusted

Climate normals for Mount Ontake by month
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average high	-13°	-11°	-7°	-1°	5°	8°	11°	13°	9°	3°	-3°	-9°
Average low	-23°	-21°	-17°	-11°	-5°	0°	4°	5°	1°	-5°	-12°	-20°
Precipitation	126 mm	147 mm	226 mm	227 mm	275 mm	339 mm	404 mm	274 mm	415 mm	243 mm	159 mm	111 mm
Cloud cover	45%	46%	49%	50%	56%	67%	59%	45%	51%	44%	39%	39%
Daylight	9h 59	10h 52	11h 55	13h 05	14h 03	14h 35	14h 23	13h 33	12h 27	11h 20	10h 18	9h 45
Month score	19	18	17	17	14	10	20	33	16	19	21	24

Snow and freezing level

Average height of the 0 °C level from the summit normals (6.5 °C per km); snow months have a summit mean at or below +1 °C

Snow likely Jan–May · Oct–Dec

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Freezing level	300 m	550 m	1,200 m	2,150 m	3,050 m	3,700 m	4,250 m	4,400 m	3,850 m	2,900 m	1,900 m	800 m
Summit	❄ snow	❄ snow	❄ snow	❄ snow	❄ snow	above 0 °C	above 0 °C	above 0 °C	above 0 °C	❄ snow	❄ snow	❄ snow

ivTerrain

Mount Ontake in 3D

vNeighbours

Peaks nearby

Mountains of Japan

Mountain	Elevation	Prominence	Distance	July summit high
Mount Norikura	3,026 m	1,236 m	25 km N	12°
Mount Kamagamine	2,121 m	–	18 km NE	18°
Mount Kohide	1,982 m	–	14 km SW	18°
Mount Okusangai	1,811 m	–	24 km S	20°
Mount Shirakusa	1,641 m	–	17 km SW	20°
Mount Amagoidana	1,394 m	–	24 km S	22°
Mount Nakane	767 m	–	23 km W	27°