An ultimate Nagano adventure! Enjoy snow monkey watching and hot spring bathing in Jigokudani (Hell Valley), and photograph stunning cedar trees along the Togakushi Forest Trail. Savor premium rice and brew Daiginjo sake, and dance the Shinshu dragon dance amidst the aroma of sake and pristine white snow! Would you like me to...
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Yamanouchi Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Yamanouchi year round climate
Spring (March–May): Average 42–62°F, mild climate, but still chilly in early spring, with more rainfall. Common activities: Hiking, flower viewing (such as cherry blossoms and peach blossoms). Recommended clothing: Light jacket, long-sleeved shirts, comfortable shoes.
Summer (June–August): Average 69–80°F, hot and humid climate, with heavier rainfall, occasional afternoon thunderstorms. Common activities: Mountain climbing, stream play, sightseeing in cool resorts. Recommended clothing: Light and breathable clothing, sun hat, rain gear.
Autumn (September–November): Average 48–75°F, comfortable and pleasant climate, gradually decreasing rainfall, abundant sunshine. Common activities: Maple viewing, hiking, fruit picking. Recommended clothing: Comfortable long-sleeved shirts, light jacket, warm clothing.
Winter (December–February): Average -32–48°F, cold and dry climate, with little snowfall. Common activities: Skiing (depending on snow conditions), hot spring experience. Recommended clothing: Thick coat, warm clothing, scarf, gloves, hat.
Yamanouchi climatological average
Annual average temperature: approx. 55.4°F / Annual rainfall: approx. 1004 mm / Summer humidity: 70%–80% / Rainiest month: July
Yamanouchi monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
31.5°F
37.7
February
33.6°F
43.3
March
42.8°F
76.7
April
55.2°F
83.7
May
61.9°F
108.3
June
70.3°F
94.7
July
78.3°F
141.3
August
80.6°F
115
September
75°F
138.7
October
59.2°F
64
November
48.6°F
70.7
December
36.7°F
30.7
Yamanouchi weather for the next seven days
3/7
Saturday
Moderate rain
42.1°F/29.6°F
3/8
Sunday
Patchy moderate snow
38.8°F/26.5°F
3/9
Monday
Light freezing rain
41.2°F/25.9°F
3/10
Tuesday
Moderate or heavy snow showers
37.1°F/25.5°F
3/11
Wednesday
Partly Cloudy
41.7°F/24.3°F
3/12
Thursday
Patchy moderate snow
45.1°F/26.1°F
3/13
Friday
Sunny
44.3°F/27°F
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