Air Quality in Chōfu, Japan

Cloudy
21.5°C · 71.7% humidity
21.5°
Feels 21.5°
10
Good
Air quality is satisfactory. Enjoy outdoor activities.
28 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
41 8am
41
24
10 11am
14
17
19 2pm
20
21
22 5pm
40
41
41 8pm
41
42
42 11pm
42
104
42 2am
42
41
24 5am
24
12
Station readings
4
CAMS model adj -42
83
83
66
66
66
66
66
66
66
66
83
84
84
83
84
84
84
146
84
84
83
66
66
54
AD 728×90

Air Quality Index Trend

37h · 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.

71.7%
Humidity
29.8 km/h
Wind S
1015.4 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
10
2.35 µg/m³
PM10▲
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Chōfu?

Temperature & Precipitation

PM2.5 Trend

37h · 1 station
PM2.52.35 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (28 stations within 25 km)
2.35
Median
3.14
Average
1.0
Low
9.6
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +14.0

What is the 7-day forecast for Chōfu?

06-09
23.3° 21.5°
0.13 mm
06-10
28.6° 19.0°
3.81 mm
06-11
26.3° 19.7°
0.38 mm
06-12
24.3° 19.6°
1.0 mm
06-13
30.7° 21.4°
3.69 mm
06-14
29.7° 18.3°
39.69 mm
06-15
27.2° 21.0°
12.0 mm
Both models agree Avg diff: 2.3°C

Where are air quality stations near Chōfu?

25
Shimorenjaku, Mitaka, Tokyo, Japan (連雀通り下連雀三鷹市)
3.6 km PM2.5: 6.0 µg/m³
–
小金井市東町
4.7 km 98.3% RH PM2.5: 0.0 µg/m³ PM10: 1.0 µg/m³
17
多摩区登戸小学校
4.7 km 92.0% RH PM2.5: 4.0 µg/m³ PM10: 3.0 µg/m³
8
Sekimae, Musashino, Tokyo, Japan (武蔵野市関前武蔵野市)
5.8 km PM2.5: 1.9 µg/m³
9
Shukugawara, Kanagawa, Japan (本村橋川崎市多摩区)
6.0 km PM2.5: 2.2 µg/m³
8
西東京市南町
7.0 km 99.5% RH PM2.5: 2.0 µg/m³ PM10: 3.0 µg/m³
50
Higashiyurigaoka, Kanagawa, Japan (弘法松公園川崎市麻生区)
7.2 km PM2.5: 12.0 µg/m³
47
Katahira, Kanagawa, Japan (柿生川崎市麻生区)
9.0 km PM2.5: 11.3 µg/m³
30
Katahira, Kanagawa, Japan (柿生川崎市麻生区)
9.0 km PM2.5: 7.2 µg/m³
4
Suginami, Izumi-3
9.2 km PM2.5: 1.0 µg/m³ PM10: 1.1 µg/m³

What cities are near Chōfu?

14 Komae 14 Kamirenjaku 17 Noborito 12 Inokashira 11 Inagi 17 Musashino 5 Koganei 10 Fuchū 31 Nishi-Tokyo-shi 10 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 2026-06-09T02:10 UTC.