What is the air quality in Katsuyama today?

The current Air Quality Index (AQI) in Katsuyama is 56 (Moderate). PM2.5 concentration is 14.74 µg/m³.

What is the temperature in Katsuyama right now?

The current temperature in Katsuyama is 15.3°C (feels like 15.3°C). Humidity is 69.3% and wind speed is 26.8 km/h.

Air Quality in Katsuyama, Japan

Partly Cloudy

15.3°C · 69.3% humidity

15.3°

Feels 15.3°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

2 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

44h · 5 stn

View full history →

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.

69.3%

Humidity

26.8 km/h

Wind SE

1024.1 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

14.74 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Katsuyama?

Temperature & Precipitation

PM2.5 Trend

44h · 5 stations

PM2.514.74 µg/m³ ✓ WHO

Moderate

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (2 stations within 25 km)

14.74

Median

9.5

Average

3.1

Low

15.9

High

PM2.5 µg/m³ · Model: 6.5 · Bias: -8.2

What is the 7-day forecast for Katsuyama?

10-21

18.6° 11.3°

0.13 mm

10-22

20.6° 13.2°

1.19 mm

10-23

18.1° 11.4°

2.12 mm

10-24

16.9° 13.1°

12.44 mm

10-25

16.6° 10.8°

1.19 mm

10-26

14.3° 7.7°

0.38 mm

10-27

14.6° 8.5°

0.38 mm

Both models agree Avg diff: 3.9°C

Where are air quality stations near Katsuyama?

Mizuotoshicho, Ono, Fukui, Japan (大野大野市)

7.9 km PM2.5: 15.9 µg/m³

Toyoshima, Fukui, Fukui, Japan (福井福井市)

25.0 km PM2.5: 3.1 µg/m³

Sadatomocho, Echizen, Fukui, Japan (今立越前市)

27.8 km PM2.5: 7.2 µg/m³

What cities are near Katsuyama?

59 Ono 30 Iijima 20 Maruoka 13 Fukui-shi 30 Kaga 19 Sabae 29 Awara 23 Takefu 24 Echizen 30 Mikuni

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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 2026-10-21T09:16 UTC.