Spring (March–May): Average 42–62°F, mild climate but with a large temperature difference between day and night, increasing rainfall. Common activities: Cherry blossom viewing, hiking, mountain trekking. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Summer (June–August): Average 69–80°F, high temperature, high humidity, and frequent rain. Common activities: Summer resorts, water activities, enjoying mountain scenery. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
Autumn (September–November): Average 48–75°F, comfortable and pleasant climate, crisp autumn air, gradual change in foliage color. Common activities: Maple leaf viewing, hiking, hot spring bathing. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Winter (December–February): Average -32–36°F, cold and dry, high probability of snowfall. Common activities: Skiing, winter sports, enjoying snow scenes. Recommended clothing: Warm jacket, beanie, scarf, gloves, waterproof and warm shoes.
Nagano climatological average
Annual average temperature: approx. 55.4°F / Annual rainfall: approx. 1004 mm / Summer humidity: 70%–80% / Rainiest month: July
Nagano 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
Nagano weather for the next seven days
10/16
Thursday
Heavy rain
68.1°F/54.2°F
10/17
Friday
Patchy rain nearby
70.7°F/49.3°F
10/18
Saturday
Moderate rain
75.4°F/48°F
10/19
Sunday
Patchy rain nearby
61.8°F/54.1°F
10/20
Monday
Patchy rain nearby
63.2°F/46.6°F
10/21
Tuesday
Patchy rain nearby
56.1°F/48.5°F
10/22
Wednesday
Patchy rain nearby
53.1°F/38.9°F
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