Nagano Weather in October
In Nagano, October brings pleasant daytime temperatures around 18°C (64°F), with nights cooling to 8°C (46°F). This month falls within the rainy season, so expect frequent rainfall.
Rainfall in Nagano in October
As part of the rainy season, Nagano sees around 16 days of rain in October, with an average of 182 mm (7.2 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.
Temperature in Nagano in October
In October, Nagano gets pleasant temperatures, with highs of 18°C (64°F). Nights cool to around 8°C (46°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Nagano in October
The area experiences a moderate amount of sunshine, with approximately 155 hours of sunlight expected. Even though this month is part of the rainy season, you could still see the sun every now and then.If your ideal day consists of dry skies and pleasant temperatures, May typically offers the best circumstances for Nagano.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Nagano's climate page.
Nagano Temperature in October
Min Temperature
8°C (46°F)
Max Temperature
18°C (64°F)
Chance of Rain
53%
Precipitation
182 mm (7.2 in)
Rainy days
16 days
Humidity
75%
Sunshine
155 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Nagano typically drop from around 22°C (72°F) at the start of October to approximately 16°C (61°F) by the end. Nights are cool, with lows typically ranging from 7°C (45°F) to 14°C (57°F).
Average temperatures in October
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather for Nagano in October
Browse day-by-day weather records for Nagano spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Nagano historical weather extremes in October
Based on weather observations in Nagano between 1976 and 2025, these are the recorded extremes during October.
- The hottest October day on record in Nagano reached 31°C (88°F) (October 9, 2013).
- The lowest daytime temperature in October was 8°C (46°F), recorded on October 28, 2010.
- Nagano registered its coldest October night on October 28, 1997, with temperatures dropping to -1°C (30°F).
- The wettest October day on record brought 119 mm (4.7 in) of precipitation to Nagano (October 12, 2019).
Best Places in Japan in October
Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in October →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Nagano in October
For Nagano in October, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Also bring a poncho, it will rain a lot! Waterproof everything you can. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Nagano in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Nagano's climate page.
Temperature Rainfall Sunshine Humidity
See the full Nagano climate overview or explore weather in Japan.
