Air Quality in Tachikawa, Japan

Drizzle
23.7°C · 83.6% humidity
23.7°
Feels 23.7°
67
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
26 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
82 7am
81
81
67 10am
72
75
77 1pm
78
79
80 4pm
80
80
80 7pm
81
81
81 10pm
82
82
144 1am
144
144
82 4am
82
82
Station readings 22h ago
AQI 84
PM2.5 27.6 µg/m³ · 22h ago
CAMS model adj -2
84
83
83
83
84
84
84
84
84
84
83
83
83
83
83
83
84
84
146
146
146
84
84
84
AD 728×90

Air Quality Index Trend

5h · 1 stn

Tachikawa'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. Current PM2.5 concentration in Tachikawa is 1.3× the WHO 24-hour guideline of 15 µg/m³.

83.6%
Humidity
54.5 km/h
Wind NNW
1002.6 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
67
19.66 µg/m³
PM10
44
48.05 µg/m³
050100150200300500

What is the weather forecast for Tachikawa?

Temperature & Precipitation

PM2.5 Trend

5h · 1 station
PM2.519.66 µg/m³ ×1.3 WHO
Moderate
PM1048.05 µg/m³
Good
UV INDEX19.9
Extreme
AD 300×250
Station readings (26 stations within 25 km)
19.66
Median
18.41
Average
3.8
Low
28.3
High
PM2.5 µg/m³ · Model: 23.15 · Bias: +3.5

What is the 7-day forecast for Tachikawa?

07-22
30.2° 23.7°
3.0 mm
07-23
27.8° 22.1°
0.56 mm
07-24
29.8° 23.6°
1.56 mm
07-25
32.9° 23.6°
07-26
30.3° 26.1°
0.13 mm
07-27
33.3° 24.9°
9.94 mm
07-28
29.6° 26.3°
12.63 mm
Both models agree Avg diff: 2.9°C

Where are air quality stations near Tachikawa?

59
Yaho, Kunitachi, Tokyo, Japan (甲州街道国立国立市)
3.8 km PM2.5: 15.9 µg/m³
68
府中市四谷
5.3 km 76.5% RH PM2.5: 20.0 µg/m³ PM10: 35.0 µg/m³
78
Ogawacho, Kodaira, Tokyo, Japan (小平市小川町小平市)
5.8 km PM2.5: 24.9 µg/m³
97
Ochikawa, Hino, Tokyo, Japan (川崎街道百草園日野市)
6.5 km PM2.5: 34.0 µg/m³
14
Ochikawa, Hino, Tokyo, Japan (川崎街道百草園日野市)
6.5 km PM2.5: 3.4 µg/m³
23
Honchō, Fussa-shi, Tōkyō-to, Japan (福生市本町福生市)
8.5 km PM2.5: 5.5 µg/m³
12
Honchō, Fussa-shi, Tōkyō-to, Japan (福生市本町福生市)
8.5 km PM2.5: 2.9 µg/m³
63
小金井市東町
9.7 km 72.6% RH PM2.5: 18.0 µg/m³ PM10: 31.0 µg/m³
36
Nagaoka, Tokyo, Japan (東京環状長岡西多摩郡瑞穂町)
10.1 km PM2.5: 8.6 µg/m³
20
Chuocho, Higashikurume, Tokyo, Japan (小金井街道東久留米東久留米市)
10.2 km PM2.5: 4.8 µg/m³

What cities are near Tachikawa?

67 Kunitachi 69 Akishima 66 Musashimurayama 69 Hino 64 Kokubunji 67 Yokota 64 Kodaira 65 Higashiyamato 65 Higashimurayama 64 Fuchū
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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 2026-07-22T01:18 UTC.