SeasonMapNagano weather in October
Japan
October in Nagano: nice, soaked, with clean air — fine if you can take 16 rainy days.
#4 of 12 months in Nagano · #750 of 1383 destinations to visit in October · comfort 74/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Nagano in October
No notes yet. Open Nagano on the map to add the first one.
Nagano climate normals — October
| Daytime high | 18°C / 64°F | 😎 nice |
|---|---|---|
| Nighttime low | 10°C / 50°F | |
| Rainfall | 162 mm / 6.4 in | ⛈ soaked |
| Rainy days | 16 days | |
| Humidity | 84% | 💦 very humid |
| Dew point | 10°C / 49°F | |
| Sunshine | 7.3 h/day | |
| Daylight | 11.2 h | |
| Wind | 9 km/h / 6 mph | |
| Air quality (US AQI) | 32 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Nagano in October
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyAutumn colour, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Nagano's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherNagano's best weather comes in May, June and September — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Nagano in October
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Autumn colour
5 Oct – 10 Nov · usuallyCrowdedColour starts on the Shiga Kogen plateau in early October and works down to Zenkoji and the Togakushi cedars a month later. Weekend traffic on the mountain roads is the catch.
Nearby, and something's on
Within 300 km of Nagano — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Nagano?
Nagano in October — FAQ
- Is October a good time to visit Nagano?
- October in Nagano: nice, soaked, with clean air — fine if you can take 16 rainy days. It ranks #4 of 12 months for Nagano on SeasonMap's comfort score (74/100).
- What is the weather like in Nagano in October?
- In October, Nagano averages a daily high of 17.8°C and a low of 9.8°C, with about 162 mm of rain over roughly 15.6 rainy days.
- What is the air quality in Nagano in October?
- Nagano has a mean US Air Quality Index of about 32 in October.
Other months in Nagano
Compare Nagano in October
Warmer or cooler than Nagano in October
Similar destinations in East Asia — October
Within 300 km: Hakuba's High trails and huts open around 1 Jul – 15 Oct, and Nozawa Onsen's Autumn colour around 10 Oct – 5 Nov.