Air Quality in Katsuyama, Japan
Cloudy
22.7°C · 85.7% humidity
22.7°
Feels 22.7°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Katsuyama's air quality — share it
AQI Forecast
27
9am
27
27
25
12pm
27
27
27
3pm
27
25
25
6pm
25
25
27
9pm
27
27
27
12am
27
25
25
3am
25
25
25
6am
25
27
Air Quality Index Trend
37h · 7 stnKatsuyama'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.
85.7%
Humidity
20.7 km/h
Wind ESE
1008.3 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.0 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Katsuyama?
Temperature & Precipitation
PM2.5 Trend
37h · 7 stationsPM2.56.0 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.9
Moderate
What is the 7-day forecast for Katsuyama?
08-03
27.4° 21.5°
4.06 mm
08-04
33.1° 23.1°
1.0 mm
08-05
26.0° 22.2°
6.56 mm
08-06
30.2° 22.1°
4.69 mm
08-07
31.5° 22.5°
0.44 mm
08-08
30.1° 23.2°
0.88 mm
08-09
25.9° 20.9°
1.31 mm
Both models agree
Avg diff: 2.8°C
Where are air quality stations near Katsuyama?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T03:52 UTC.