Tokyo · JapanSummit weather, forecast and climate

Maru Yama

Stratovolcano · last major eruption 1785166 m

Elevation166 mabove sea level

Prominence–independent height

Isolation75 kmto a higher summit

Summit, Jul26°average high

32.45° N, 139.77° EElevation 166 mUTC+9 · Japan Standard Time

From the valley to the top

Freezing level in October: above the summit

iThe mountain

Maru Yama in brief

Maru Yama rises to 166 m, Tokyo, Japan.

At the summit, August is the mildest month with average highs of 27°, while nights rarely fall below freezing.

The nearest town in the atlas is Aogashima, 1.6 km to the N.

iiForecast

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

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iiiSummit climate

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

Climate normals for Maru Yama by month
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average high	14°	14°	15°	18°	21°	23°	26°	27°	26°	23°	20°	16°
Average low	11°	11°	13°	16°	19°	22°	25°	26°	25°	21°	18°	13°
Precipitation	209 mm	218 mm	336 mm	258 mm	299 mm	429 mm	241 mm	220 mm	372 mm	500 mm	287 mm	218 mm
Cloud cover	42%	46%	47%	47%	55%	64%	48%	33%	36%	39%	40%	39%
Daylight	10h 14	11h 01	11h 56	12h 57	13h 48	14h 16	14h 06	13h 22	12h 24	11h 25	10h 31	10h 02
Month score	39	37	46	60	57	53	55	57	59	63	63	53

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

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Freezing level	2,050 m	2,000 m	2,300 m	2,750 m	3,250 m	3,650 m	4,100 m	4,250 m	4,100 m	3,600 m	3,050 m	2,450 m
Summit	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C