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Nagano

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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

9/13
Sunday
Mist
25.8°C/18°C
9/14
Monday
Patchy rain nearby
26°C/16.9°C
9/15
Tuesday
Light rain shower
17.7°C/15.3°C
9/16
Wednesday
Light rain shower
17.1°C/15.4°C
9/17
Thursday
Light rain shower
17.2°C/15.4°C
9/18
Friday
Patchy rain nearby
22.2°C/15.8°C
9/19
Saturday
Overcast
23.8°C/16.7°C

Nagano Frequently Asked Questions and Useful Information for Travel

Is Nagano city worth visiting in 2025?

Nagano City is a charming place to spend a day or two. Not surprisingly, the most interesting spot to explore is Zenko-ji, an ancient Zen temple around which Nagano was first built up.

How much is the bullet train from Tokyo to Nagano?

For a Tokyo to Nagano train ticket, it costs approximately AUD 126.39 on average. It can go as low as AUD 53.15, depending on the ticket types, train types, and departure time you choose.

What are the main attractions in Nagano?

One of Japan's most liveable cities, Nagano is most famous for the near-1400 year old Zenkoji Temple – a registered National Treasure and one of the most important Buddhist complexes in Japan – along with the Shinto shrines of Togakushi and samurai town of Matsushiro, that lie within the city boundary.

What is the best time to visit Nagano in 2025?

April to June and September to October are the best times to visit Nagano. These periods offer mild temperatures ranging from 15~25°C (59~77°F), accompanied by approximately 18 to 22 sunny days each month.

What unique cultural experiences can I find in Nagano?

Nagano offers deep cultural immersion, most notably at the historic Zenko-ji Temple, a significant Buddhist site. You can also explore the spiritual atmosphere of the Togakushi shrines and step back in time in the samurai town of Matsushiro, all within easy reach of Nagano City.