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Nagano

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Travel Info

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Nagano Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Nagano year round climate

  • Spring (March–May): Average 6–17°C, 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 21–27°C, 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 9–24°C, 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 -0.3–2.6°C, 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. 13°C / Annual rainfall: approx. 1004 mm / Summer humidity: 70%–80% / Rainiest month: July

Nagano monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-0.3°C
37.7
February
0.9°C
43.3
March
6°C
76.7
April
12.9°C
83.7
May
16.6°C
108.3
June
21.3°C
94.7
July
25.7°C
141.3
August
27°C
115
September
23.9°C
138.7
October
15.1°C
64
November
9.2°C
70.7
December
2.6°C
30.7

Nagano weather for the next seven days

11/24
Monday
Partly Cloudy
13.4°C/0.4°C
11/25
Tuesday
Patchy rain nearby
13.8°C/1.6°C
11/26
Wednesday
Moderate rain
7.2°C/1.2°C
11/27
Thursday
Sunny
11.5°C/-1.7°C
11/28
Friday
Patchy rain nearby
10.2°C/0.7°C
11/29
Saturday
Patchy rain nearby
6.2°C/-1.7°C
11/30
Sunday
Sunny
13.4°C/-1.9°C