SeasonMapNagano weather in July
Japan
July in Nagano: warm, soaked, with clean air — a gamble, with 27 rainy days.
#9 of 12 months in Nagano · #1146 of 1383 destinations to visit in July · comfort 56/100 (tier D)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Nagano in July
No notes yet. Open Nagano on the map to add the first one.
Nagano climate normals — July
| Daytime high | 27°C / 80°F | 🌤 warm |
|---|---|---|
| Nighttime low | 20°C / 67°F | |
| Rainfall | 328 mm / 12.9 in | ⛈ soaked |
| Rainy days | 27 days | |
| Humidity | 86% | 💦 very humid |
| Dew point | 21°C / 70°F | |
| Sunshine | 8.2 h/day | |
| Daylight | 14.4 h | |
| Wind | 7 km/h / 4 mph | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Nagano in July
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.
BusySummer break (natsuyasumi) in Japan, school holidays in 4 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 July
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Wet season
MonsoonRisk27 rainy days and about 328 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
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 July — FAQ
- Is July a good time to visit Nagano?
- July in Nagano: warm, soaked, with clean air — a gamble, with 27 rainy days. It ranks #9 of 12 months for Nagano on SeasonMap's comfort score (56/100).
- What is the weather like in Nagano in July?
- In July, Nagano averages a daily high of 26.8°C and a low of 19.6°C, with about 328.1 mm of rain over roughly 27.4 rainy days.
- What is the air quality in Nagano in July?
- Nagano has a mean US Air Quality Index of about 42 in July.
Other months in Nagano
Compare Nagano in July
Warmer or cooler than Nagano in July
Similar destinations in East Asia — July
Within 300 km: Hakuba's High trails and huts open around 1 Jul – 15 Oct, and Matsumoto's Kamikochi open season around 17 Apr – 15 Nov.