Due to the itinerary, we went straight to Karuizawa on the first day and didn't realize that the Tokyo Wide Pass I bought on KKDay could only be redeemed for physical tickets at Narita, Tokyo, and Shinjuku stations. I am grateful to KKDay customer service for their assistance in canceling the ticket (after deducting a 10% handling fee).
The staff provides friendly service, the scenery along the way is beautiful, and the food is delicious, making it a pleasant experience for the whole family.
Anonymous User
Family
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
8/9
Sunday
Patchy rain nearby
29.5°C/17.5°C
8/10
Monday
Patchy rain nearby
28.8°C/15.3°C
8/11
Tuesday
Light rain shower
26.4°C/12.7°C
8/12
Wednesday
Patchy rain nearby
26°C/15°C
8/13
Thursday
Partly Cloudy
30.6°C/14.4°C
8/14
Friday
Partly Cloudy
28.4°C/15.6°C
8/15
Saturday
Patchy rain nearby
29.6°C/15.4°C
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