Air Quality in Chōfu, Japan

Partly Cloudy
19.9°C · 58.0% humidity
19.9°
Feels 19.9°
29
Good
Air quality is satisfactory. Enjoy outdoor activities.
42 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
1 5am
21
21
29 8am
27
37
36 11am
23
23
22 2pm
22
22
21 5pm
21
21
21 8pm
21
33
33 11pm
33
33
33 2am
33
33
Station readings
18
10
4
CAMS model adj -33
34
54
54
54
54
66
66
54
54
54
54
54
54
54
54
54
54
66
66
66
66
66
66
66
AD 728×90

Air Quality Index Trend

27h · 1 stn

Chōfu'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.

58.0%
Humidity
31.3 km/h
Wind E
1017.3 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
29
6.91 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Chōfu?

Temperature & Precipitation

PM2.5 Trend

27h · 1 station
PM2.56.91 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX9.4
Very High
AD 300×250
Station readings (42 stations within 25 km)
6.91
Median
8.49
Average
1.64
Low
24.5
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +6.6

What is the 7-day forecast for Chōfu?

05-29
24.9° 19.9°
0.06 mm
05-30
24.8° 19.7°
0.44 mm
05-31
27.1° 20.3°
06-01
28.2° 21.4°
06-02
27.4° 20.8°
0.06 mm
06-03
28.1° 23.1°
0.06 mm
06-04
26.5° 18.8°
Both models agree Avg diff: 3.4°C

Where are air quality stations near Chōfu?

62
Shimorenjaku, Mitaka, Tokyo, Japan (連雀通り下連雀三鷹市)
3.6 km PM2.5: 17.3 µg/m³
21
小金井市東町
4.7 km 67.4% RH PM2.5: 5.0 µg/m³ PM10: 11.0 µg/m³
21
多摩区登戸小学校
4.7 km 40.0% RH PM2.5: 5.0 µg/m³ PM10: 8.0 µg/m³
39
Sekimae, Musashino, Tokyo, Japan (武蔵野市関前武蔵野市)
5.8 km PM2.5: 9.4 µg/m³
41
Shukugawara, Kanagawa, Japan (本村橋川崎市多摩区)
6.0 km PM2.5: 9.8 µg/m³
21
西東京市南町
7.0 km 43.3% RH PM2.5: 5.0 µg/m³ PM10: 8.0 µg/m³
36
Higashiyurigaoka, Kanagawa, Japan (弘法松公園川崎市麻生区)
7.2 km PM2.5: 8.6 µg/m³
63
Katahira, Kanagawa, Japan (柿生川崎市麻生区)
9.0 km PM2.5: 17.8 µg/m³
18
Katahira, Kanagawa, Japan (柿生川崎市麻生区)
9.0 km PM2.5: 4.3 µg/m³
4
Suginami, Izumi-3
9.2 km PM2.5: 1.0 µg/m³ PM10: 1.0 µg/m³

What cities are near Chōfu?

26 Komae 27 Kamirenjaku 21 Noborito 29 Inokashira 31 Inagi 27 Musashino 24 Koganei 33 Fuchū 22 Nishi-Tokyo-shi 34 Tama
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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 2026-05-29T23:39 UTC.