Air Quality in Nagano, Japan
Clear
22.6°C · 43.8% humidity
22.6°
Feels 22.6°
40
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations
Nearby Monitoring Stations
Nagano's air quality — share it
AQI Forecast
24
11am
24
25
40
2pm
36
33
33
5pm
31
30
29
8pm
28
28
35
11pm
35
34
34
2am
34
34
34
5am
34
34
27
8am
25
25
Air Quality Index Trend
47h · 8 stnNagano's air quality is influenced by industrial emissions, vehicle traffic, and regional pollution transport. Winter heating season and spring dust events typically create the most challenging air quality conditions.
43.8%
Humidity
13.6 km/h
Wind NE
1014.2 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
9.74 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Nagano?
Temperature & Precipitation
PM2.5 Trend
47h · 8 stationsPM2.59.74 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX14.9
Extreme
Station readings (4 stations within 25 km)
9.74
Median
7.25
Average
3.1
Low
11.3
High
PM2.5 µg/m³ · Model: 6.0 · Bias: -3.7
What is the 7-day forecast for Nagano?
06-09
22.6° 15.7°
0.31 mm
06-10
20.0° 13.3°
5.81 mm
06-11
23.7° 13.6°
0.19 mm
06-12
18.2° 14.8°
0.94 mm
06-13
25.6° 15.1°
0.13 mm
06-14
30.0° 16.0°
0.06 mm
06-15
26.4° 15.7°
0.69 mm
Both models agree
Avg diff: 2.5°C
Where are air quality stations near Nagano?
5
Nagano (長野)
34
Nagano (長野)
53
Amori, Nagano, Nagano, Japan (環境保全研究所長野市)
6
Shinonoifusetakada, Nagano, Nagano Prefecture, Japan (篠ノ井長野市)
6
Shinonoifusetakada, Nagano, Nagano Prefecture, Japan (篠ノ井長野市)
What cities are near Nagano?
Get AQI alerts for Nagano
Notify me when air quality reaches:
Free · No account · Unsubscribe any time
Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T05:11 UTC.