What is the air quality in Kōzan today?

The current Air Quality Index (AQI) in Kōzan is 11 (Good). PM2.5 concentration is 2.61 µg/m³.

What is the temperature in Kōzan right now?

The current temperature in Kōzan is 18.3°C (feels like 18.3°C). Humidity is 70.7% and wind speed is 16.8 km/h.

Is it safe to go outside in Kōzan?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Kōzan, Japan

Drizzle

18.3°C · 70.7% humidity

18.3°

Feels 18.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

3 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 9 stn

View full history →

Kōzan'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.

70.7%

Humidity

16.8 km/h

Wind S

1017.8 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

2.61 µg/m³

PM10▲

13.7 µg/m³

050100150200300500

What is the weather forecast for Kōzan?

Temperature & Precipitation

PM2.5 Trend

45h · 9 stations

PM2.52.61 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (3 stations within 25 km)

2.61

Median

2.63

Average

2.4

Low

2.9

High

PM2.5 µg/m³ · Model: 8.2 · Bias: +5.6

What is the 7-day forecast for Kōzan?

10-21

18.3° 12.4°

4.81 mm

10-22

23.3° 14.1°

0.13 mm

10-23

20.3° 11.2°

0.06 mm

10-24

19.0° 15.6°

0.31 mm

10-25

18.0° 7.0°

7.44 mm

10-26

17.4° 7.3°

10-27

17.3° 9.9°

Both models agree Avg diff: 4.7°C

Where are air quality stations near Kōzan?

Miyaoki, Mihara, Hiroshima, Japan (三原宮沖町三原市)

21.4 km PM2.5: 2.6 µg/m³

Miyaoki, Mihara, Hiroshima, Japan (三原宮沖町三原市)

21.4 km PM2.5: 2.4 µg/m³

Fukuyama, Hiroshima Prefecture, Japan (松永小学校福山市)

24.9 km PM2.5: 3.1 µg/m³

Tōkaichimachi, Miyoshi-shi, Hiroshima-ken, Japan (三次市十日市町三次市)

29.4 km PM2.5: 0.7 µg/m³

What cities are near Kōzan?

24 Fuchūchō 10 Mihara 28 Shin’ichi 16 Onomichi 12 Shōbara 13 Takehara 12 Miyoshi 12 Fukuyama 20 Kannabechō-yahiro 8 Higashihiroshima

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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 2026-10-21T06:02 UTC.