Air Quality in Koganei, Japan

Partly Cloudy
26.4°C · 68.1% humidity
26.4°
Feels 26.4°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
9 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
26 9am
19
26
25 12pm
26
26
26 3pm
26
26
26 6pm
26
26
26 9pm
26
26
26 12am
26
26
26 3am
26
26
26 6am
26
26
Station readings
19
CAMS model adj -28
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
AD 728×90

Air Quality Index Trend

18h · 2 stn

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.

68.1%
Humidity
24.7 km/h
Wind E
1009.4 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
25
5.93 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Koganei?

Temperature & Precipitation

PM2.5 Trend

18h · 2 stations
PM2.55.93 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
Station readings (9 stations within 25 km)
5.93
Median
6.47
Average
2.4
Low
14.0
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +4.9

What is the 7-day forecast for Koganei?

08-03
28.2° 22.4°
9.5 mm
08-04
34.2° 25.8°
4.56 mm
08-05
32.3° 25.5°
1.81 mm
08-06
30.1° 26.8°
21.13 mm
08-07
36.2° 25.2°
11.69 mm
08-08
34.3° 26.5°
37.0 mm
08-09
35.6° 22.7°
1.25 mm
Both models agree Avg diff: 2.8°C

Where are air quality stations near Koganei?

42
Honcho, Koganei, Tokyo, Japan (小金井市本町小金井市)
0.7 km PM2.5: 10.1 µg/m³
17
小金井市東町
1.3 km 66.7% RH PM2.5: 4.0 µg/m³ PM10: 14.0 µg/m³
29
西東京市南町
3.7 km 71.4% RH PM2.5: 7.0 µg/m³ PM10: 15.0 µg/m³
25
Nishitokyo (西東京市)
3.7 km PM2.5: 6.0 µg/m³
30
Ogawacho, Kodaira, Tokyo, Japan (小平市小川町小平市)
3.9 km PM2.5: 7.2 µg/m³
26
Ogawacho, Kodaira, Tokyo, Japan (小平市小川町小平市)
3.9 km PM2.5: 6.2 µg/m³
40
Shimorenjaku, Mitaka, Tokyo, Japan (連雀通り下連雀三鷹市)
4.9 km PM2.5: 9.6 µg/m³
34
Jindaiji Minamimachi, Chofu, Tokyo, Japan (調布市深大寺南町調布市)
5.9 km PM2.5: 8.2 µg/m³
50
Honcho, Higashimurayama, Tokyo, Japan (新青梅街道東村山東村山市)
6.7 km PM2.5: 12.0 µg/m³
25
府中市四谷
7.3 km 74.9% RH PM2.5: 6.0 µg/m³ PM10: 13.0 µg/m³

What cities are near Koganei?

24 Kokubunji 25 Kodaira 21 Nishi-Tokyo-shi 22 Fuchū 28 Kamirenjaku 21 Tanashichō 25 Musashino 32 Chōfu 23 Higashikurume 27 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 2026-08-08T03:03 UTC.