Air Quality in Iiyama, Japan
Partly Cloudy
15.9°C · 50.1% humidity
15.9°
Feels 15.9°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Iiyama's air quality — share it
AQI Forecast
25
8am
25
24
20
11am
20
22
23
2pm
24
24
24
5pm
27
27
27
8pm
34
34
54
11pm
54
54
54
2am
54
54
54
5am
54
54
Air Quality Index Trend
47h · 4 stnIiyama'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.
50.1%
Humidity
12.3 km/h
Wind NW
1016.0 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
4.77 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Iiyama?
Temperature & Precipitation
PM2.5 Trend
47h · 4 stationsPM2.54.77 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX9.4
Very High
What is the 7-day forecast for Iiyama?
06-09
18.0° 12.8°
1.19 mm
06-10
15.9° 8.7°
15.56 mm
06-11
19.9° 10.9°
0.62 mm
06-12
14.1° 11.6°
1.44 mm
06-13
20.8° 12.5°
0.62 mm
06-14
22.8° 11.8°
0.69 mm
06-15
23.5° 14.2°
0.5 mm
Both models agree
Avg diff: 3.2°C
Where are air quality stations near Iiyama?
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T02:22 UTC.