What is the air quality in Koganei today?

The current Air Quality Index (AQI) in Koganei is 32 (Good). PM2.5 concentration is 7.81 µg/m³.

What is the temperature in Koganei right now?

The current temperature in Koganei is 15.3°C (feels like 15.3°C). Humidity is 75.2% and wind speed is 39.3 km/h.

Is it safe to go outside in Koganei?

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

Air Quality in Koganei, Japan

Drizzle

15.3°C · 75.2% humidity

15.3°

Feels 15.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

26 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings 9h ago

AQI 69

PM2.5 20.6 µg/m³ · 9h ago

Air Quality Index Trend

39h · 1 stn

View full history →

Koganei'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.

75.2%

Humidity

39.3 km/h

Wind N

1021.6 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

7.81 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Koganei?

Temperature & Precipitation

PM2.5 Trend

39h · 1 station

PM2.57.81 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (26 stations within 25 km)

7.81

Median

7.38

Average

2.4

Low

26.8

High

PM2.5 µg/m³ · Model: 6.0 · Bias: -1.8

What is the 7-day forecast for Koganei?

10-21

21.6° 15.3°

0.75 mm

10-22

23.3° 18.1°

0.06 mm

10-23

22.5° 15.7°

10-24

21.9° 16.8°

0.94 mm

10-25

19.8° 14.2°

5.63 mm

10-26

20.7° 15.0°

10-27

19.2° 15.1°

0.25 mm

Both models agree Avg diff: 3.0°C

Where are air quality stations near Koganei?

小金井市東町

1.3 km 55.8% RH PM2.5: 5.0 µg/m³ PM10: 12.0 µg/m³

西東京市南町

3.7 km 70.4% RH PM2.5: 4.0 µg/m³ PM10: 14.0 µg/m³

Nishitokyo (西東京市)

3.7 km PM2.5: 8.2 µg/m³

Sekimae, Musashino, Tokyo, Japan (武蔵野市関前武蔵野市)

4.4 km PM2.5: 6.0 µg/m³

Sekimae, Musashino, Tokyo, Japan (武蔵野市関前武蔵野市)

4.4 km PM2.5: 2.9 µg/m³

Shimorenjaku, Mitaka, Tokyo, Japan (連雀通り下連雀三鷹市)

4.9 km PM2.5: 3.1 µg/m³

Jindaiji Minamimachi, Chofu, Tokyo, Japan (調布市深大寺南町調布市)

5.9 km PM2.5: 4.1 µg/m³

Honcho, Higashimurayama, Tokyo, Japan (新青梅街道東村山東村山市)

6.7 km PM2.5: 26.8 µg/m³

Shimohoya, Nishitokyo, Tokyo, Japan (西東京市下保谷西東京市)

7.0 km PM2.5: 13.1 µg/m³

Shimohoya, Nishitokyo, Tokyo, Japan (西東京市下保谷西東京市)

7.0 km PM2.5: 6.0 µg/m³

What cities are near Koganei?

43 Kokubunji 57 Kodaira 33 Nishi-Tokyo-shi 32 Fuchū 18 Kamirenjaku 35 Tanashichō 25 Musashino 19 Chōfu 48 Higashikurume 22 Inokashira

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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 2026-10-21T08:31 UTC.