Air Quality in Nagano, Japan
Partly Cloudy
18.2°C · 65.2% humidity
18.2°
Feels 18.2°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Nagano's air quality — share it
AQI Forecast
25
8am
25
24
25
11am
24
25
25
2pm
25
25
27
5pm
27
27
27
8pm
27
27
34
11pm
34
34
34
2am
34
34
34
5am
34
34
Air Quality Index Trend
46h · 4 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.
65.2%
Humidity
15.2 km/h
Wind SSW
1015.5 hPa
Pressure
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
5.9 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Nagano?
Temperature & Precipitation
PM2.5 Trend
46h · 4 stationsPM2.55.9 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX10.9
Extreme
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)
42
Nagano (長野)
25
Amori, Nagano, Nagano, Japan (環境保全研究所長野市)
30
Shinonoifusetakada, Nagano, Nagano Prefecture, Japan (篠ノ井長野市)
60
Shinonoifusetakada, Nagano, Nagano Prefecture, Japan (篠ノ井長野市)
What cities are near Nagano?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T02:10 UTC.