Weather in Nagano in September
Nagano, Japan averages a high of 24.5°C (76.1°F) and low of 16.3°C (61.3°F) in September, with 15 rain days and 8.4 hours of daily sunshine. Travel score: 69.7/100 (Good). The best time to visit Nagano is May.
High
25°C76°F
Low
16°C61°F
🌧️
15
rain days
☀️
8.4
hrs/day sunshine
💧
84%
humidity
70— Good
September in Nagano is warm and rainy — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Nagano?
How much does it rain in Nagano in September?
Nagano receives an average of 166.8mm of rainfall across 15 rainy days in September. The annual total is 1665.9mm.
What should I pack for Nagano in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 25°C
🧥
Waterproof jacket
Frequent rain expected (15 rainy days)
☔
Umbrella
Essential for the rainy season
👢
Waterproof shoes
Keep your feet dry in wet conditions
🧴
Sunscreen SPF 30+
8 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to Japan in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
🏛️ 121 countries·📅 Updated yearly·✈️ Free forever
Compare Nagano
Popular comparisons:
How can I plan my trip to Nagano?
What other cities are near Nagano?
What are other popular cities in Japan?
What is the weather like in other months in Nagano?
Data based on 1994–2024 averages · Last updated: 2024-12-31