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Ski Japan - Iwate

Okunakayama Kōgen Snow Forecast

40.08° N 141.19° E
1000m altitude
Issued:
2 pm 20 Aug 2026 (local time)
Forecast update in:
 hr  min
Last 6 daysScroll left for last 6 daysNow

Next 3 days weather summary:

Moderate rain (total 12.0mm), heaviest on Thu afternoon. Warm (max 22°C on Thu afternoon, min 17°C on Fri night). Wind will be generally light.

Days 4-6 weather summary:

Light rain (total 8.0mm), mostly falling on Mon afternoon. Warm (max 22°C on Mon afternoon, min 18°C on Sun night). Wind will be generally light.

Thu
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
thunderstorm
thunderstorm
clear
thunderstorm
part cloud
part cloud
thunderstorm
clear
clear
rain showers
clear
rain showers
thunderstorm
part cloud
clear
thunderstorm
part cloud
t-storm
risk
t-storm
risk
clear
t-storm
risk
some clouds
some clouds
t-storm
risk
clear
clear
rain shwrs
clear
rain shwrs
t-storm
risk
some clouds
clear
t-storm
risk
some clouds
km/h
10
W
10
W
5
W
5
NW
5
SW
5
SSW
5
NNW
5
S
10
S
5
SSW
15
SSW
10
SW
15
WSW
20
WSW
20
WSW
15
W
5
SSW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
3
3
3
3
2
1
3
1
max °C
22
19
22
20
18
21
21
18
21
21
19
21
22
19
21
22
18
min °C
20
19
20
19
17
19
19
18
19
20
18
20
20
18
20
20
18
 chill °C
20
19
20
19
17
19
19
18
19
20
18
20
20
17
20
20
18
Humid %
76
74
64
77
90
72
77
88
76
73
78
78
78
97
89
68
88
Freeze m
4750
4500
4350
4500
4350
4450
4500
4550
4800
4750
4850
4800
4850
4750
4600
4800
4800
Sea lvl1000m2000m3000m4000m5000m
21192120182020182021192121192121182420252218242219242319242319242418
Sunrise
4:50
4:52
4:52
4:54
4:54
Sunset
6:25
6:23
6:22
6:21
6:20
6:17

Days 7-16 weather summary:

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Avalanche information: Japan Avalanche Network


Snow Radar

Latest snow reports near Okunakayama Kōgen:

No recent snow reports

No recent snow reports

Okunakayama Kōgen Snow Conditions

Top snow depth:
Bottom snow depth:
Fresh snowfall depth:
Last snowfall:11 Apr 2026
Snow AlertsCreate Alert
Other resorts in Japan - Iwate are reporting: powder (0) / good piste (0)

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Snow History

Week 3 of August has on average:

0.0
Bluebird Powder days
Fresh snow, mostly sunny, light wind.
0.0
Powder days
Fresh snow, limited sun, any wind.
0.0
Bluebird days
Average snow, mostly sunny, light wind.


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