Air Quality in Katsuyama, Japan
Partly Cloudy
30.1°C · 66.7% humidity
30.1°
Feels 35.5°
40
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Katsuyama's air quality — share it
AQI Forecast
27
6am
27
27
40
9am
36
34
32
12pm
30
29
29
3pm
28
28
28
6pm
27
34
34
9pm
54
54
34
12am
34
34
34
3am
34
27
Air Quality Index Trend
38h · 3 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.
66.7%
Humidity
15.3 km/h
Wind S
998.5 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
9.61 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Katsuyama?
Temperature & Precipitation
PM2.5 Trend
38h · 3 stationsPM2.59.61 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX12.9
Extreme
What is the 7-day forecast for Katsuyama?
07-22
33.0° 20.7°
1.37 mm
07-23
27.1° 15.5°
6.94 mm
07-24
25.1° 23.8°
10.19 mm
07-25
28.7° 19.6°
13.25 mm
07-26
28.8° 19.3°
0.13 mm
07-27
27.5° 20.6°
5.63 mm
07-28
25.8° 20.7°
7.37 mm
Both models agree
Avg diff: 2.5°C
Where are air quality stations near Katsuyama?
10
Mizuotoshicho, Ono, Fukui, Japan (大野大野市)
74
Toyoshima, Fukui, Fukui, Japan (福井福井市)
22
Sadatomocho, Echizen, Fukui, Japan (今立越前市)
What cities are near Katsuyama?
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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 2026-07-22T00:24 UTC.