Air Quality in Iiyama, Japan
Rain
18.1°C · 96.4% humidity
18.1°
Feels 18.1°
41
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Iiyama's air quality — share it
AQI Forecast
27
8am
27
27
41
11am
37
34
32
2pm
31
30
29
5pm
28
35
55
8pm
54
54
54
11pm
54
54
54
2am
54
54
54
5am
34
27
Air Quality Index Trend
43h · 1 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.
96.4%
Humidity
30.7 km/h
Wind SSE
1004.0 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
9.75 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Iiyama?
Temperature & Precipitation
PM2.5 Trend
43h · 1 stationPM2.59.75 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX24.9
Extreme
What is the 7-day forecast for Iiyama?
07-22
26.2° 16.0°
10.25 mm
07-23
21.0° 12.8°
1.44 mm
07-24
20.0° 18.7°
2.94 mm
07-25
23.5° 15.4°
16.94 mm
07-26
21.7° 16.1°
1.56 mm
07-27
22.6° 16.1°
5.69 mm
07-28
21.7° 18.1°
9.25 mm
Both models agree
Avg diff: 4.4°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 2026-07-22T02:15 UTC.