Jōmō Sanzan · Gunma · JapanSummit weather, forecast and climate

Mount Akagi

Stratovolcano · last major eruption 19471,828 mSnow likely Jan–Mar · Nov–Dec

Elevation1,828 mabove sea level

Prominence–independent height

Isolation15 kmto a higher summit

Summit, Jul19°average high

36.56° N, 139.19° EElevation 1,828 mUTC+9 · Japan Standard Time

From the valley to the top

Summit1,828 m
Mid-mountain1,080 m
Valley · Morishita337 m

Freezing level in October: above the summit

iThe mountain

Mount Akagi in brief

Mount Akagi rises to 1,828 m in the Jōmō Sanzan, Gunma, Japan.

At the summit, August is the mildest month with average highs of 20°, while nights fall below freezing in 6 months of the year. Daytime highs climb above zero from March to November.

The nearest town in the atlas is Morishita, 14 km to the NW at 337 m.

Facts

Elevation: 1,828 m · 5,997 ft
Range: Jōmō Sanzan
Region: Gunma
Country: Japan
Coordinates: 36.5608, 139.1936
Nearest airport: Ibaraki Airport (IBR) · 117 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 Akagi by month

Summit temperatures and precipitation

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

Climate normals for Mount Akagi by month
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average high	-4°	-3°	1°	7°	12°	15°	19°	20°	16°	10°	5°	-1°
Average low	-13°	-12°	-8°	-2°	3°	8°	12°	13°	10°	3°	-3°	-9°
Precipitation	69 mm	78 mm	136 mm	174 mm	209 mm	272 mm	350 mm	409 mm	401 mm	232 mm	109 mm	64 mm
Cloud cover	44%	47%	51%	51%	58%	68%	64%	52%	59%	49%	42%	38%
Daylight	9h 55	10h 51	11h 54	13h 06	14h 06	14h 38	14h 26	13h 35	12h 28	11h 19	10h 15	9h 41
Month score	33	29	16	16	24	38	53	58	45	19	23	37

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–Mar · Nov–Dec

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Freezing level	500 m	600 m	1,250 m	2,200 m	3,000 m	3,650 m	4,250 m	4,400 m	3,800 m	2,850 m	1,950 m	1,050 m
Summit	❄ snow	❄ snow	❄ snow	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	❄ snow	❄ snow

ivTerrain

Mount Akagi in 3D

vNeighbours

Peaks nearby

Mountains of Japan

Mountain	Elevation	Prominence	Distance	July summit high
Mount Sukai	2,144 m	–	19 km NE	17°
Mount Kesamaru	1,961 m	–	15 km NE	18°
Mount Kōshin	1,892 m	–	19 km NE	18°
Komaga Take	1,666 m	–	1.0 km S	20°
Suzuga Take	1,405 m	–	3.8 km W	21°
Kashō Zan	1,322 m	–	25 km NW	22°
Mount Komochi	1,296 m	–	18 km W	22°
Mount Onoko	1,208 m	–	23 km W	23°