Nagano · JapanSummit weather, forecast and climate

Mount Asama

Complex volcano · last major eruption 19612,568 mSnow likely Jan–Apr · Nov–Dec

Elevation2,568 mabove sea level

Prominence–independent height

Isolation45 kmto a higher summit

Summit, Jul15°average high

36.40° N, 138.52° EElevation 2,568 mUTC+9 · Japan Standard Time

From the valley to the top

Summit2,568 m
Mid-mountain1,750 m
Valley · Miyota928 m

Freezing level in October: above the summit

iThe mountain

Mount Asama in brief

Mount Asama rises to 2,568 m, Nagano, Japan.

At the summit, August is the mildest month with average highs of 16°, while nights fall below freezing in 8 months of the year. Daytime highs climb above zero from April to November.

The nearest town in the atlas is Miyota, 7.1 km to the S at 928 m.

Facts

Elevation: 2,568 m · 8,425 ft
Region: Nagano
Country: Japan
Coordinates: 36.4000, 138.5167
Nearest airport: Shinshu-Matsumoto Airport (MMJ) · 59 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 Asama by month

Summit temperatures and precipitation

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

Climate normals for Mount Asama by month
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average high	-9°	-8°	-4°	3°	8°	12°	15°	16°	12°	6°	1°	-5°
Average low	-18°	-17°	-13°	-7°	-2°	3°	7°	8°	4°	-2°	-8°	-14°
Precipitation	61 mm	73 mm	112 mm	122 mm	167 mm	226 mm	284 mm	240 mm	295 mm	179 mm	87 mm	52 mm
Cloud cover	44%	47%	50%	50%	56%	67%	61%	47%	56%	47%	41%	39%
Daylight	9h 56	10h 51	11h 54	13h 06	14h 05	14h 38	14h 25	13h 35	12h 27	11h 19	10h 16	9h 42
Month score	35	31	19	17	14	18	38	50	25	18	29	40

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–Apr · Nov–Dec

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Freezing level	500 m	600 m	1,250 m	2,250 m	3,050 m	3,700 m	4,250 m	4,400 m	3,850 m	2,900 m	2,000 m	1,100 m
Summit	❄ snow	❄ snow	❄ snow	❄ snow	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	❄ snow	❄ snow

ivTerrain

Mount Asama in 3D

vNeighbours

Peaks nearby

Mountains of Japan

Mountain	Elevation	Prominence	Distance	July summit high
Maekake Yama	2,455 m	–	0.5 km NW	16°
Mount Kurofu, Miyota	2,404 m	–	2.6 km W	16°
Mount Jakotsu	2,366 m	–	2.6 km NW	17°
Mount Azumaya	2,354 m	–	18 km NW	17°
Mount Kagonoto	2,228 m	–	6.6 km W	18°
Mount Neko	2,207 m	–	20 km NW	18°
Mount Motoshirane	2,171 m	–	25 km N	17°
Mount Yunomaru	2,101 m	–	11 km W	19°