Akita · JapanSummit weather, forecast and climate

Iwa Dake

880 mSnow likely Jan–Mar · Nov–Dec

Elevation880 mabove sea level

Prominence–independent height

Isolation4.0 kmto a higher summit

Summit, Jul22°average high

40.48° N, 140.81° EElevation 880 mUTC+9 · Japan Standard Time

From the valley to the top

Summit880 m
Mid-mountain580 m
Valley · Kosaka275 m

Freezing level in October: above the summit

iThe mountain

Iwa Dake in brief

Iwa Dake rises to 880 m, Akita, Japan.

At the summit, August is the mildest month with average highs of 23°, while nights fall below freezing in 6 months of the year. Daytime highs climb above zero from April to November.

The nearest town in the atlas is Kosaka, 13 km to the SW at 275 m.

Facts

Elevation: 880 m · 2,887 ft
Region: Akita
Country: Japan
Coordinates: 40.4781, 140.8117
Nearest airport: Aomori Airport (AOJ) · 30 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 Iwa Dake by month

Summit temperatures and precipitation

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

Climate normals for Iwa Dake by month
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average high	-5°	-4°	0°	8°	14°	19°	22°	23°	18°	12°	4°	-2°
Average low	-13°	-12°	-8°	-1°	5°	10°	15°	16°	11°	4°	-3°	-9°
Precipitation	221 mm	178 mm	164 mm	160 mm	193 mm	211 mm	298 mm	297 mm	302 mm	224 mm	253 mm	250 mm
Cloud cover	54%	54%	49%	46%	52%	56%	60%	51%	52%	44%	47%	54%
Daylight	9h 35	10h 39	11h 53	13h 15	14h 24	15h 03	14h 48	13h 49	12h 31	11h 12	9h 58	9h 18
Month score	15	15	17	18	39	56	54	58	58	29	18	15

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	valley	valley	250 m	1,450 m	2,400 m	3,100 m	3,700 m	3,900 m	3,150 m	2,100 m	1,000 m	-0 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

Iwa Dake in 3D

vNeighbours

Peaks nearby

Mountains of Japan

Mountain	Elevation	Prominence	Distance	July summit high
Mount Ōdake	1,585 m	–	21 km N	19°
Kushigamine	1,517 m	–	14 km N	20°
Sakasagawa Dake	1,183 m	–	17 km N	21°
Mount Herai	1,160 m	–	16 km E	21°
Towada mountain	1,159 m	–	8.8 km E	23°
Shiroji Yama	1,034 m	–	4.0 km SW	21°
Mount Ohanabe	1,011 m	–	6.8 km NE	21°
Towari Yama	991 m	–	16 km E	22°