What is the air quality in Katsuyama today?

The current Air Quality Index (AQI) in Katsuyama is 24 (Good). PM2.5 concentration is 5.83 µg/m³.

What is the temperature in Katsuyama right now?

The current temperature in Katsuyama is 20.7°C (feels like 20.7°C). Humidity is 91.0% and wind speed is 20.8 km/h.

Is it safe to go outside in Katsuyama?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Katsuyama, Japan

Rain

20.7°C · 91.0% humidity

20.7°

Feels 20.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

25 5pm

24 8pm

24 11pm

24 2am

24 5am

24 8am

25 11am

27 2pm

Air Quality Index Trend

45h · 2 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.

91.0%

Humidity

20.8 km/h

Wind ESE

1007.8 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.83 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Katsuyama?

Temperature & Precipitation

PM2.5 Trend

45h · 2 stations

PM2.55.83 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

What is the 7-day forecast for Katsuyama?

09-05

27.4° 20.7°

6.81 mm

09-06

23.7° 20.0°

1.37 mm

09-07

29.6° 18.5°

3.13 mm

09-08

25.7° 17.9°

4.75 mm

09-09

25.2° 19.9°

6.0 mm

09-10

29.7° 19.2°

2.75 mm

09-11

25.8° 19.8°

4.0 mm

Both models agree Avg diff: 2.3°C

Where are air quality stations near Katsuyama?

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

7.9 km PM2.5: 5.0 µg/m³

What cities are near Katsuyama?

24 Ono 25 Iijima 25 Maruoka 25 Fukui-shi 53 Kaga 26 Sabae 29 Awara 26 Takefu 26 Echizen 29 Mikuni

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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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 2026-09-05T11:14 UTC.