Air Quality in Katsuyama, Japan

Drizzle
23.5°C · 58.6% humidity
23.5°
Feels 23.5°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
27 9am
25
27
25 12pm
27
27
27 3pm
27
27
27 6pm
27
34
34 9pm
27
34
34 12am
54
54
54 3am
54
34
34 6am
27
25
AD 728×90

Air Quality Index Trend

44h · 4 stn

Katsuyama'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.

58.6%
Humidity
25.0 km/h
Wind NNW
1013.9 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
25
6.0 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

44h · 4 stations
PM2.56.0 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX19.9
Extreme
AD 300×250
6.0
Median
6.0
Average
6.0
Low
6.0
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +0.2
06-09
23.5° 17.3°
0.25 mm
06-10
18.5° 14.0°
3.25 mm
06-11
24.6° 15.9°
06-12
21.5° 16.6°
1.56 mm
06-13
24.9° 17.4°
0.38 mm
06-14
23.5° 16.5°
0.13 mm
06-15
27.6° 16.6°
4.0 mm
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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 2026-06-09T03:51 UTC.